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File List | 1990-07-14 | 84KB | 2,117 lines

DESQview Interrupt List Release 90.3 Last change 7/15/90 This compilation is Copyright (c) 1989, 1990 Ralf Brown --------------------------------------------- Please redistribute the following files unmodified as a group, in an archive named DVINT390: DVINTER.1ST the read-me file DVINTER.LST this file --------------------------------------------- If you notice any mistakes or omissions, please let me know! It is only with YOUR help that the list can continue to grow at the current rate. Please send all changes to me rather than distributing a modified version of the list. Please read the file DVINTER.1ST before asking me any questions. You may find that it's already been addressed. Ralf Brown ARPA: ralf@cs.cmu.edu UUCP: {ucbvax,harvard}!cs.cmu.edu!ralf BIT: ralf%cs.cmu.edu@cmuccvma FIDO: Ralf Brown 1:129/3.1 (new address!) or post a message to the DR_DEBUG echo CIS: >INTERNET:ralf@cs.cmu.edu I reply to all e-mail submissions and inquiries, but some of my replies bounce because of bad return paths. If you don't get a response from me within a reasonable period of time, send it again with a better return path (starting at harvard or ucbvax for UUCP, from the ARPA Internet for others). --------------------------------------------- See DVINTER.1ST for the key to system abbreviations and a list of the trademarks mentioned here. --------------------------------------------- DISCLAIMER: I verify the information contained in this list to the best of my ability, but I cannot be held responsible for any problems caused by use or misuse of the information, especially for those functions not officially documented. If it is marked "internal", you should check it carefully to make sure it works the same way in your version of the software (and please let me know whether or not it works the same way). Information marked with "???" is known to be incomplete or guesswork. --------------------------------------------- The use of -> instead of = signifies that the indicated register or register pair contains a pointer to the specified item, rather than the item itself --------------------------------------------- INT 10 - VIDEO - SET VIDEO MODE AH = 00h AL = mode (graphics mode if graphics resolution listed) text pixel graphic colors disp scrn system resol box resoltn page addr 21h = 80x43 8x8 720x348 mono DESQview 2.x+Hercules *** 22h = 80x43 8x8 720x348 mono DESQview 2.x+Hercules *** *** DESQview intercepts calls to change into these two modes (21h is page 0, 22h is page 1) even if there is no Hercules graphics board installed --------------------------------------------- INT 10 - VIDEO (DESQview 2.0x only) - internal - SET ??? HANDLER AH = 80h DX = 4456h ('DV') ES:DI -> FAR subroutine to be called on ??? Return: DS = segment of DESQview data structure for video buffer Note: this function is probably meant for internal use only, due to the magic value required in DX the subroutine seems to be called when the DESQview menu is accessed; on entry, AL = 3 or 4 --------------------------------------------- INT 10 - VIDEO (DESQview 2.0x only) - internal - GET ??? AH = 81h DX = 4456h ('DV') Return: ES = segment of DESQview data structure for video buffer BYTE ES:[0] = current window number in DV 2.0x Note: this function is probably meant for internal use only, due to the magic value required in DX --------------------------------------------- INT 10 - VIDEO (DESQview 2.0x only) - internal - GET CURRENT WINDOW INFO AH = 82h DX = 4456h ('DV') Return: DS = segment in DESQview for data structure in DV 2.00, BYTE DS:[0] = window number WORD DS:[1] = segment of other data structure WORD DS:[3] = segment of window's object handle ES = segment of DESQview data structure for video buffer AL = current window number AH = ??? BL = direct screen writes 00h program does not do direct writes 01h program does direct writes, so shadow buffer not usable BH = ??? CL = current video mode CH = ??? Note: this function is probably meant for internal use only, due to the magic value required in DX --------------------------------------------- INT 10 - VIDEO (TopView) - GET VIDEO BUFFER AH = FEh ES:DI = segment:offset of assumed video buffer Return: ES:DI = segment:offset of actual video buffer Notes: if no multitasker is installed, ES:DI is returned unchanged TopView requires a call to AH=FFh to notify if that the screen has changed; DESQview will check for changes itself until the first call to AH=FFh SeeAlso: INT 15/AX=1024h, INT 21/AH=2Bh"DESQview" --------------------------------------------- INT 10 - VIDEO (TopView) - UPDATE REAL SCREEN FROM VIDEO BUFFER AH = FFh CX = number of sequential characters that have been modified DI = offset of first character that has been modified ES = segment of video buffer Note: avoid CX=0000h --------------------------------------------- INT 15 - TopView - "PAUSE" - GIVE UP CPU TIME AX = 1000h Return: after other processes run --------------------------------------------- INT 15 - TopView - "GETMEM" - ALLOCATE "SYSTEM" MEMORY AX = 1001h BX = number of bytes to allocate Return: ES:DI -> block of memory SeeAlso: AX=1002h,DE0Ch --------------------------------------------- INT 15 - TopView - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY AX = 1002h ES:DI -> previously allocated block Return: block freed SeeAlso: AX=1001h,DE0Dh --------------------------------------------- INT 15 - TopView - "PRINTC" - DISPLAY CHARACTER/ATTRIBUTE ON SCREEN AX = 1003h BH = attribute BL = character DX = segment of object handle for window Note: BX=0 does not display anything, it only positions the hardware cursor --------------------------------------------- INT 15 - TopView - UNIMPLEMENTED IN DV 2.x AH = 10h AL = 04h thru 12h Return: pops up "Programming error" window in DV 2.x --------------------------------------------- INT 15 - TopView - "GETBIT" - DEFINE A 2ND-LEVEL INTERRUPT HANDLER AX = 1013h ES:DI -> FAR service routine Return: BX = bit mask indicating which bit was allocated 0000h if no more bits available SeeAlso: AX=1014h,1015h --------------------------------------------- INT 15 - TopView - "FREEBIT" - UNDEFINE A 2ND-LEVEL INTERRUPT HANDLER AX = 1014h BX = bit mask from INT 15/AX=1013h SeeAlso: AX=1013h,1015h --------------------------------------------- INT 15 - TopView - "SETBIT" - SCHEDULE ONE OR MORE 2ND-LEVEL INTERRUPTS AX = 1015h BX = bit mask for interrupts to post Return: indicated routines will be called: (DV 2.0x) at next task switch (DV 2.2x) immediately SeeAlso: AX=1013h,1014h --------------------------------------------- INT 15 - TopView - "ISOBJ" - VERIFY OBJECT HANDLE AX = 1016h ES:DI = possible object handle Return: BX = FFFFh if ES:DI is a valid object handle 0000h if ES:DI is not SeeAlso: AX=DE14h --------------------------------------------- INT 15 - TopView - UNIMPLEMENTED IN DV 2.x AX = 1017h Return: pops up "Programming error" window in DV 2.x --------------------------------------------- INT 15 - TopView - "LOCATE" - FIND WINDOW AT A GIVEN SCREEN LOCATION AX = 1018h BH = column BL = row ES = segment of object handle for window below which to search 0000h = start search with topmost window Return: ES = segment of object handle for window which is visible at the indicated position, or covered by indicated window --------------------------------------------- INT 15 - TopView - "SOUND" - MAKE TONE AX = 1019h BX = frequency in Hertz CX = duration in clock ticks (18.2 ticks/sec) Return: immediately, tone continues to completion Notes: if another tone is already playing, the new tone does not start until completion of the previous one. In DV 2.00, it is possible to enqueue about 32 tones before the process is blocked until a note completes. in DV 2.00, the lowest tone allowed is 20 Hz --------------------------------------------- INT 15 - TopView - "OSTACK" - SWITCH TO TASK'S INTERNAL STACK AX = 101Ah Return: stack switched SeeAlso: AX=1025h --------------------------------------------- INT 15 - TopView - "BEGINC" - BEGIN CRITICAL REGION AX = 101Bh Return: task-switching temporarily disabled Note: will not task-switch until END CRITICAL REGION (AX = 101Ch) called SeeAlso: AX=101Ch,DE13h --------------------------------------------- INT 15 - TopView - "ENDC" - END CRITICAL REGION AX = 101Ch Return: task-switching enabled SeeAlso: AX=101Bh,DE13h --------------------------------------------- INT 15 - TopView - "STOP" - STOP TASK AX = 101Dh ES = segment of object handle for task to be stopped (== handle of main window for that task) Return: indicated task will no longer get CPU time Note: at least in DV 2.00, this function is ignored unless the indicated task is the current task. SeeAlso: AX=101Eh,102Bh --------------------------------------------- INT 15 - TopView - "START" - START TASK AX = 101Eh ES = segment of object handle for task to be started (== handle of main window for that task) Return: indicated task is started up again SeeAlso: AX=101Dh,102Bh --------------------------------------------- INT 15 - TopView - "DISPEROR" - POP-UP ERROR WINDOW AX = 101Fh BX = bit fields bits 0-12: number of characters to display bits 13,14: which mouse button may be pressed to remove window 00 = either 01 = left 10 = right 11 = either bit 15: beep if 1 DS:DI -> text of message CH = width of error window (0 = default) CL = height of error window (0 = default) DX = segment of object handle Return: BX = status: 1 = left button, 2 = right, 27 = ESC pressed Note: window remains on-screen until ESC or indicated mouse button is pressed --------------------------------------------- INT 15 - TopView - UNIMPLEMENTED IN DV 2.0x AX = 1020h Return: pops up "Programming error" window in DV 2.0x --------------------------------------------- INT 15 - TopView - "PGMINT" - INTERRUPT ANOTHER TASK AX = 1021h BX = segment of object handle for task to interrupt DX:CX -> FAR routine to jump to next time task is run Return: nothing Note: the current ES, DS, SI, DI, and BP are passed to the FAR routine --------------------------------------------- INT 15 - TopView - "GETVER" - GET VERSION AX = 1022h BX = 0 Return: BX nonzero, TopView or compatible loaded (BL = major version, BH = minor version) Notes: TaskView returns BX = 0001h, DESQview 2.0 returns BX = 0A01h --------------------------------------------- INT 15 - TopView - "POSWIN" - POSITION WINDOW AX = 1023h BX = segment of object handle for parent window within which to position the window (0 = full screen) ES = segment of object handle for window to be positioned DL = bit flags bits 0,1: horizontal position 00 = current 01 = center 10 = left 11 = right bits 2,3: vertical position 00 = current 01 = center 10 = top 11 = bottom bit 4: don't redraw screen if set bits 5-7 not used CH = number of columns to offset from position specified by DL CL = number of rows to offset from position specified by DL Return: nothing --------------------------------------------- INT 15 - TopView - "GETBUF" - GET VIRTUAL SCREEN INFO AX = 1024h BX = segment of object handle for window (0 = use default) Return: ES:DI -> virtual screen CX = size of virtual screen in bytes DL = 00h text screen 01h graphics screen SeeAlso: INT 10/AH=FEh --------------------------------------------- INT 15 - TopView - "USTACK" - SWITCH BACK TO USER'S STACK AX = 1025h Return: stack switched back Note: call only after having switched to private stack SeeAlso: AX=101Ah --------------------------------------------- INT 15 - DESQview (TopView???) - UNIMPLEMENTED IN DV 2.x AH = 10h AL = 26h thru 2Ah Return: pops up "Programming error" window in DV 2.x --------------------------------------------- INT 15 - DESQview 2.0 (TopView???) - "POSTTASK" - AWAKEN TASK AX = 102Bh BX = segment of object handle for task Return: nothing SeeAlso: AX=101Dh,101Eh --------------------------------------------- INT 15 - DESQview 2.0 (TopView???) - START NEW APPLICATION IN NEW PROCESS AX = 102Ch ES:DI -> contents of .PIF/.DVP file (see below) BX = size of .PIF/.DVP info Return: BX = segment of object handle for new task 0000h on error Format of .PIF/.DVP file: Offset Size Description 00h WORD reserved (0) 02h 30 BYTEs program title (blank-padded) 20h WORD maximum memory to allocate to partition in K 22h WORD minimum memory required in K 24h 64 BYTEs ASCIZ program pathname 64h BYTE default drive letter ('A',...) 65h 64 BYTEs ASCIZ default directory name A5h 64 BYTEs ASCIZ program parameters E5h BYTE initial screen mode (0-7) E6h BYTE number of text pages used E7h BYTE number of first interrupt to save E8h BYTE number of last interrupt to save E9h BYTE rows in virtual screen buffer EAh BYTE columns in virtual screen buffer EBh BYTE initial window position, row ECh BYTE initial window position, column EDh WORD system memory in K EFh 64 BYTEs ASCIZ shared program name 12Fh 64 BYTEs ASCIZ shared program data file 16Fh BYTE flags1 bit 7: writes text directly to screen bit 6: runs in foreground only bit 5: uses math coprocessor bit 4: accesses system keyboard buffer directly bits 3-1: reserved (0) bit 0: swappable 170h BYTE flags2 bit 6: uses command-line parameters in field at A5h bit 5: swaps interrupt vectors ---information unique to .DVP files--- 171h 2 BYTEs keys to use on open menu 173h WORD size of script buffer in bytes 175h WORD automatically give up CPU after this many tests for keyboard input in one clock tick (0 = never) 177h BYTE nonzero = "uses own colors" 178h BYTE nonzero if application swappable 179h 3 BYTEs reserved (0) 17Ch BYTE nonzero to automatically close on exit 17Dh BYTE nonzero if copy-protect floppy is required ---information unique to DESQview 2.0+--- 17Eh BYTE .DVP version number 00h DESQview 1.2+ 01h DESQview 2.0+ 02h DESQview 2.2+ 17Fh BYTE reserved (0) 180h BYTE initial number of rows in physical window 181h BYTE initial number of columns in physical window 182h WORD maximum expanded memory to allow, in K 184h BYTE flags3 bit 7: automatically assign window position bit 5: maximum memory value has been specified bit 4: disallow "Close" command bit 3: foreground-only when doing graphics bit 2: don't virtualize 185h BYTE keyboard conflict level (0-4) 186h BYTE number of graphics pages used 187h WORD extra system memory size 189h BYTE initial screen mode (FFh = default) ---information unique to DESQview 2.2+--- 18Ah BYTE serial port usage FFh uses all serial ports 00h no serial ports 01h only COM1 02h only COM2 18Bh BYTE flags4 bit 7: automatically close application on exit if .COM or .EXE specified bit 6: swappable if not using serial ports bit 4: start program in background (v2.26+) bit 3: virtualize text bit 2: virtualize graphics bit 1: share CPU when foreground bit 0: share EGA when foreground and zoomed 18Ch BYTE protection level for 386 machines 18Dh 19 BYTEs reserved (0) --------------------------------------------- INT 15 - DESQview 2.0 - KEYBOARD MOUSE CONTROL AX = 102Dh BL = subfunction 00h determine whether using keyboard mouse Return: BL = 00h using real mouse 01h using keyboard mouse 01h turn keyboard mouse on 02h turn keyboard mouse off --------------------------------------------- INT 15 - TopView commands AH = 11h AL = various (except 17h) Note: in DESQview 2.x, these function calls are identical to AH=DEh, so see those below SeeAlso: AH=DEh --------------------------------------------- INT 15 - VMiX - EXECUTE SHELL SYSTEM COMMANDS AH = 11h STACK: DWORD pointer to ASCIZ string containing and VMiX shell request (max len = 127) Return: AX = status --------------------------------------------- INT 15 - DESQview 2.2+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT AX = 1117h BX = 0000h get current mapping context without setting nonzero set new mapping context Return: BX = mapping context in effect before call Notes: this function differs from AX = DE17h for DESQview v2.20 through 2.25 mapping contexts determine conventional-memory addressability; setting a mapping context ensures that the associated program and data areas are in memory for access. Usable by drivers, TSRs and shared programs. Caller need not be running under DESQview --------------------------------------------- INT 15 - DESQview - XDV.COM - INSTALLATION CHECK AX = 11DEh Return: CF clear if installed AX = segment at which XDV is located --------------------------------------------- INT 15 - VMiX - PUT PROCESS TO SLEEP AH = 12h STACK: WORD process ID Return: AX = status --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "HANDLE" - RETURN OBJECT HANDLE AH = 12h BH = 00h BL = which handle to return 00h handle in DWORD on top of stack 01h current task's window handle 02h given task's mailbox handle (task's handle on stack) 03h current task's mailbox handle 04h given task's keyboard handle (task's handle on stack) 05h current task's keyboard object handle 06h given task's OBJECTQ handle (task's handle on stack) 07h current task's OBJECTQ handle 08h \ thru > return 0000:0000 10h / Return: DWORD on top of stack is object handle --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "NEW" - CREATE NEW OBJECT AH = 12h BH = 01h BL = object 00h (DV 2.0x only) handle is DWORD on top of stack 01h (DV 2.0x only) use task's window handle 02h (DV 2.0x only) given task's mailbox (task's handle on stack) 03h (DV 2.0x only) current task's mailbox 04h (DV 2.0x only) given task's keyboard (task's handle on stack) 05h (DV 2.0x only) current task's keyboard object 08h WINDOW class 09h MAILBOX class 0Ah KEYBOARD class 0Bh TIMER object (counts down 32-bit time in 10ms increments) 0Fh POINTER object 10h PANEL object STACK: (if window object or WINDOW class) DWORD address to jump to (no new task if high word == 0) DWORD (reserved) 0 = non-task window, FFFFh = task window DWORD bytes for task's private stack (FFFFh == default of 0100h) DWORD bytes system memory allocation (0 == none, -1 == default) DWORD window size, columns DWORD window size, rows DWORD length of window title DWORD address of window title Return: DWORD on top of stack is new object handle Note: if a new task is created, it is started with AX = BX = CX = SI = DI = BP = 0 DX = segment of parent's object handle DS = ES = SS = segment of private stack (and new task's handle) SeeAlso: AH=12h/BH=02h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "FREE" - FREE AN OBJECT AH = 12h BH = 02h BL = object 00h handle in DWORD on top of stack window: close window and free timer: free timer panel: free panel object pointer: free pointer 01h task's window handle - kills task, never returns 02h given task's mailbox (task's handle on top of stack) 03h current task's mailbox 04h given task's keyboard (task's handle on top of stack) 05h current task's keyboard object SeeAlso: AH=12h/BH=01h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "DIR" - GET PANEL FILE DIRECTORY AH = 12h BX = 0300h STACK: DWORD handle of panel object Return: STACK: DWORD length of directory DWORD address of directory Format of panel file: Offset Size Description 00h 2 BYTEs C0h C3h 02h BYTE number of panels in file 03h for each panel in file: 8 BYTEs blank-padded panel name DWORD panel offset in file WORD panel length data for panels (each consists of one or more window/query/manager streams) first byte of each panel must be 1Bh, fifth byte must be E5h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "ADDR" - GET OBJECT HANDLE AH = 12h BH = 03h BL = object 00h handle in DWORD on top of stack 02h sender of last msg read from mailbox (task's handle on stack) 03h sender of last msg read from current task's mailbox Return: DWORD on stack is handle SeeAlso: AH=12h/BH=00h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "READ" - WAIT FOR TIMER TO EXPIRE AH = 12h BX = 0400h STACK: DWORD timer's handle Return: STACK: DWORD time in 1/100 sec since midnight when timer expires --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "READ" - GET NEXT RECORD AH = 12h BH = 04h BL = object 00h handle is DWORD on top of stack window: read next logical line mailbox: wait for and get next message pointer: wait for and get next message 01h read the next logical line from task's default window 02h get next message from mailbox (task's handle on top of stack) 03h get next message from current task's mailbox 04h get the next input from keyboard (handle on top of stack) 05h get the next input from task's default keyboard 06h wait for input from any object in OBJECTQ (handle on stack) 07h wait for input from any object in task's default OBJECTQ Return: STACK: (if objectq) DWORD handle of object with input (otherwise) DWORD number of bytes DWORD address SeeAlso: AH=12h/BH=05h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "APPLY" - WRITE PANEL TO WINDOW AH = 12h BX = 0400h STACK: DWORD handle of panel object DWORD window's handle or 0 DWORD length of panel name DWORD pointer to panel name Return: STACK: DWORD handle of created keyboard or 0 DWORD handle of window which was used Notes: status of APPLY may be checked with STATUS message panel MUST have the following format first byte must be 1Bh (i.e. must start with a stream) first opcode in stream must be E5h single byte arg of opcode is interpreted thus: bit 7 \ 11 means create new window bit 6 / 10 means create new field table for existing window 01 means use existing window and field table bit 5 if set, panel contains a field table (creates a new keyboard and puts it in field mode) bit 4 if set, panel contains input fields bit 3 if set, panel contains select fields but no input fields -------------------------------------------- INT 15 - TopView - SEND MESSAGE - "WRITE" - WRITE TO OBJECT AH = 12h BH = 05h BL = object 00h handle is DWORD on top of stack timer: start timer to end at a specified time pointer: move pointer icon to specified position 02h send message by value/status=0 to mbox (task's handle on stack) 03h send message by value/status=0 to current task's mailbox 04h add input buffer to KEYBOARD queue (handle on top of stack) 05h add input buffer to task's default KEYBOARD queue 06h add an object to OBJECTQ (handle on top of stack) 07h add an object to task's default OBJECTQ STACK: (if mailbox) DWORD length DWORD address (if keyboard) DWORD status (such as scan code) DWORD length DWORD address (if objectq) DWORD handle of object to add (if timer) DWORD 1/100ths seconds since midnight (actually only accurate to 1/18 sec) (if pointer) DWORD column relative to origin of window DWORD row relative to origin of window SeeAlso: AH=12h/BH=04h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "WRITE" - WRITE STRING TO WINDOW AH = 12h BH = 05h BL = object 00h DWORD on top of stack is window handle 01h write string to task's default window STACK: DWORD object handle if handle passed on stack DWORD total length of string (high word == 0) DWORD address of string to display Return: indicated actions performed a. non-control characters are displayed b. CR/LF/BS/Tab cause the usual cursor movement c. ESC starts a data structure with additional commands Note: service routine will pop stack Data Structure: MAGIC DB 1Bh MODE DB ? ; 00h, 01h, 10h, 14h-1Fh legal LENGTH DW ? ; length of remainder in bytes var-length fields follow, each an OPCODE followed by zero or more args MODE 00h (set or display values) "WINDOW STREAM" Opcodes:args 00h display 20h blanks with the default attribute 01h-1Fh display OPCODE blanks with the default attribute 20h display char with default attribute 20h times BYTE char to repeat 21h-3Fh display char with default attribute OPCODE-20h times BYTE char to repeat 40h display 20h blanks with specified attribute BYTE attribute of blanks 41h-5Fh display OPCODE-40h blanks with specified attribute BYTE attribute of blanks 60h display next 20h characters 20h BYTES characters to display 61h-7Fh display next OPCODE-60h characters N BYTES characters to display 80h-87h display N blanks with default attribute BYTE low 8 bits of 11-bit count (high 3 in low 3 bits of OPCODE) [000h means 800h] 88h-8Fh display N copies of the character BYTE low 8 bits of 11-bit count (high 3 in low 3 bits of OPCODE) [000h means 800h] BYTE character to repeat 90h-97h display N blanks with specified attribute BYTE low 8 bits of 11-bit length (high 3 in low 3 bits of OPCODE) [000h means 800h] BYTE attribute 98h-9FH display string at logical cursor pos BYTE low 8 bits of 11-bit length (high 3 in low 3 bits of OPCODE) [000h means 800h] N BYTES string to display A0h set logical cursor row BYTE row number (0 is top) A1h set logical cursor column BYTE column number (0 is leftmost) A2h set top edge of scrolling region BYTE row A3h set left edge of scrolling region BYTE column A4h set row of physical window position BYTE line A5h set column of physical window position BYTE column A6h set height of physical window BYTE #rows A7h set width of physical window BYTE #columns A8h set viewport row BYTE row A9h set viewport column BYTE column AAh set virtual screen height BYTE rows ABh set virtual screen width BYTE columns ACh-AEh unused AFh set compatible/preferred video modes BYTE compatibility/preference mask bit 7 compatible with monochrome bit 6 compatible with color text, EGA/VGA graphics bit 5 compatible with medium-resolution CGA graphics bit 4 compatible with high-resolution CGA graphics bit 3 prefer monochrome bit 2 prefer color text, EGA/VGA graphics bit 1 prefer medium-resolution CGA graphics bit 0 prefer high-resolution CGA graphics B0h move logical cursor down BYTE #rows (signed, negative values move up) B1h move logical cursor right BYTE #cols (signed, negative values move left) B2h shift top edge of scrolling region BYTE #rows (signed) B3h shift left edge of scrolling region BYTE #cols (signed) B4h shift window down BYTE #lines (signed) B5h shift window right BYTE #columns (signed) B6h expand physical window vertically BYTE #lines (signed) B7h expand physical window horizontally BYTE #columns (signed) B8h adjust viewport row BYTE #rows (signed) B9h adjust viewport column BYTE #columns (signed) BAh adjust virtual screen height BYTE #rows to increase (signed) BBh adjust virtual screen width BYTE #cols to increase (signed) BCh-BFh unused C0h set logical cursor position BYTE row number (0 is top border) BYTE column number (0 is left border) C1h set top left corner of scrolling region BYTE row BYTE column C2h set window pos BYTE upper left row (no top border if 0) BYTE upper left column (no left border if 0) C3h set current window size BYTE #rows BYTE #cols C4h set upper left corner of viewport (portion of virtual screen displayed in window) BYTE row BYTE column C5h set size of virtual screen BYTE #rows BYTE #cols C6h unused C7h unused C8h set logical cursor relative to current position BYTE number of rows to move down (signed) BYTE number of columns to move right (signed) C9h shift top left corner of scrolling region BYTE #rows (signed) BYTE #cols (signed) CAh set window pos relative to current position BYTE number of rows to shift down (signed) BYTE number of columns to shift right (signed) CBh set window size relative to current size BYTE number of rows to expand (signed) BYTE number of cols to expand (signed) CCh shift viewport relative to current position BYTE rows to shift (signed) BYTE cols to shift (signed) CDh resize virtual screen BYTE #rows to expand (signed) BYTE #cols to expand (signed) CEh scroll text when using E8h-EBh/F8h-FBh opcodes (default) CFh scroll attributes when using E8h-EBh/F8h-FBh opcodes D0h allow window frame to extend beyond screen D1h always display a complete frame, even if window extends beyond edge of screen D2h allow DV to change colors on video mode switch (default) D3h application changes colors D4h window is visible D5h window is hidden D6h window has frame D7h window unframed D8h read characters from window (default) D9h read attributes from window DAh use logical attributes, which may be remapped attributes 1 normal text 2 highlighted normal text 3 help text 4 highlighted help text 5 error message 6 highlighted error message 7 emphasized text 8 marked text 9-16 are reverse video versions of 1-8 DBh use physical attributes for characters DCh enable special actions for control characters (default) DDh disable special control char handling, all chars displayable by BIOS TTY call DEh write both character and attribute (default) DFh write character only, leave attribute untouched E0h repeat following commands BYTE number of times E1h end of commands to repeat, start repeating them E2h set color BYTE color E3h clear virtual screen E4h redraw window E5h select menu style BYTE style bits 5,4 = 01 use two-letter menu entries for remainder of this stream E5h (panel file only) BYTE modifier bits 7,6 = 11 panel goes in new window = 01 panel uses existing window bit 5 = 1 create new keyboard in field mode bit 4 = 1 make newly-created keyboard active bit 3 reserved bit 2 = 1 stream defined exclusive input window (DV 2.2) bit 1 reserved bit 0 reserved E6h create new window and perform rest of manipulations in new window BYTE number of rows BYTE number of columns Return: DWORD object handle returned on stack at end E7h unused E8h scroll area up (top left corner defined by opcode C1h) BYTE height BYTE width E9h scroll area down (top left corner defined by opcode C1h) BYTE height BYTE width EAh scroll area left (top left corner defined by opcode C1h) BYTE height BYTE width EBh scroll area right (top left corner defined by opcode C1h) BYTE height BYTE width ECh set logical attributes for window contents BYTE video modes command applies to bit 7 monochrome bit 6 color text, EGA/VGA graphics bit 5 medium-resolution CGA graphics bit 4 high-resolution CGA graphics BYTE which attributes to set bit 7 if set, copy single following byte to indicated attrs bits 4-6 # of first attribute to change - 1 bits 0-3 # of consecutive attributes to change N BYTEs new attributes EDh set logical attributes for window frame BYTE video modes command applies to (see opcode ECh) BYTE which attributes to set bit 7 if set, copy single following byte to indicated attrs bits 4-6 # of first attribute to change - 1 bits 0-3 # of consecutive attributes to change N BYTEs new attributes attributes 1 = top left corner 2 = top right corner 3 = bottom left corner 4 = bottom right corner 5 = top edge 6 = bottom edge 7 = left edge 8 = right edge EEh set characters for window frame BYTE video modes command applies to (see opcode ECh) BYTE which characters to set bit 7 if set, copy single following byte to indicated chars bits 4-6 # of first char to change - 1 bits 0-3 # of consecutive chars to change N BYTEs new chars (same relative position as attributes above) EFh set window name BYTE length of name N BYTEs name F0h clear input field to blanks BYTE field number F1h fill input field with character BYTE field number BYTE char F2h set color of input field BYTE field number (1-N) BYTE attribute F3h set initial contents of input field BYTE field number (1-N) N BYTEs enough chars to exactly fill field as defined by op FFh F4h position cursor to specific input field BYTE field number (1-N) F5h change field table entry BYTE field number 7-8 BYTEs field table entry (see opcode FFh below) F6h set field type BYTE field number BYTE type F7h "broadcast write" write data to fields with broadcast bit set in field table entry, in field number order N BYTEs (total length of all program output fields) F8h scroll field up a line BYTE field number F9h scroll field down a line BYTE field number FAh scroll field left BYTE field number FBh scroll field right BYTE field number FCh set field table header BYTE number of fields BYTE screen behavior bits bit 7 reserved bit 6 set if menu items may be selected via keyboard bit 5 set if left mouse button may terminate entry bit 4 set if right mouse button may terminate entry bit 3 if set, select fields return contents or blanks rather than 'Y' or 'N' bit 2 if set, modified bits reset on return to application bits 0,1 = 00 no data returned on read of keyboard 01 data returned as array of chars containing all fields packed together, with no field numbers 10 data returned as numbered variable-length records for all fields 11 data returned as numbered variable-length records for the fields which were modified BYTE current input field (updated by DESQview) BYTE current select field (updated by DESQview) BYTE attribute for select fields when they are pointed at BYTE attribute for select fields which have been selected FDh reset modified bit for all fields FEh reset selected and modified bits for all fields FFh set up input fields 6 BYTEs table header (see opcode FCh above) the field table entries, one for each field BYTE start row \ BYTE start column \ if menu selection and start is to BYTE end row / right or below end, select from kbd only BYTE end column / BYTE field type bits 7,6 = 00 inactive (non-entry) field 01 echos keystrokes input to make menu selection 10 fill-in field 11 select field bit 5 field can be filled by broadcast write (F7h opcode) bit 4 reserved bit 3 reserved bit 2 reserved bit 1 set if field selected bit 0 set if field modified BYTE modifier if type is fill-in, then bit flags to determine behavior bit 7 if set, automatically enter CR when field full bit 6 move to next field when current field is full bit 5 if set, enter text from right end (for numbers) bit 4 if set, force input to uppercase bit 3 if set, clear old contents on first keystroke bit 2 if set, input returned when cursor moves out of modified field (API level 2.02+) bit 1 reserved bit 0 reserved if select field, first key to press to activate 00h if have to point-&-click or is an extended-ASCII keystroke (only if two-key menus enabled) BYTE (select field only) normal color of field BYTE second key for select field. This byte is present iff two-letter menu entries selected with opcode E5h, and in that case is present regardless of field type Note: DESQview uses and updates the actual copy of the information which is contained in the stream. Thus this info must remain intact until after the data entry is complete. MODE 01h "QUERY STREAM" (valid only for those opcodes listed here) A0h return logical cursor row in next byte A1h return logical cursor column in next byte A2h return top row of scrolling region in next byte A3h return left column of scrolling region in next byte A4h return row of physical window origin in next byte A5h return column of physical window origin in next byte A6h return height of physcial window in next byte A7h return width of physical window in next byte A8h return row of viewport origin in next byte A9h return column of viewport origin in next byte AAh return height of virtual screen in next byte ABh return width of virtual screen in next byte AFh return current video mode in next byte C0h return current logical cursor position in next two bytes C1h return top left corner of scrolling region in next two bytes C2h return current window position in next two bytes C3h return current window size in next two bytes C4h return current viewport origin in next two bytes C5h return current virtual screen size in next two bytes D0h \ overwritten with D0h if frames may fall off screen edge D1h / D1h if frames always displayed entirely D2h \ overwritten with D2h if DESQview controls color palette D3h / D3h if application changes color palette D4h \ overwritten with D4h if window visible D5h / D5h if window hidden D6h \ overwritten with D6h if window has frame D7h / D7h if window unframed D8h \ overwritten with D8h if reading characters from window D9h / D9h if reading attributes from window DAh \ overwritten with DAh if using logical attributes DBh / DBh if using physical attributes DCh \ overwritten with DCh if TTY control char interpretation on DDh / DDh if TTY control char interpretation off DEh \ overwritten with DEh if writing both characters and attributes DFh / DFh if leaving attributes untouched E2h return current color in next byte ECh get logical attributes for window contents BYTE execute call if currently in specified video mode bit 7 monochrome bit 6 color text, EGA/VGA graphics bit 5 medium-resolution CGA graphics bit 4 high-resolution CGA graphics BYTE which attributes to get bit 7 unused??? bits 4-6 first attribute to get - 1 bits 0-3 # consecutive attributes N BYTEs buffer to hold attributes EDh get logical attributes for window frame BYTE execute call if currently in video mode (see opcode ECh) BYTE which attributes to get bit 7 unused??? bits 4-6 first attribute to get - 1 bits 0-3 # consecutive attributes N BYTEs buffer to hold attributes EEh get characters for window frame BYTE execute call if currently in video mode (see opcode ECh) BYTE which attributes to get bit 7 unused??? bits 4-6 first char to get - 1 bits 0-3 # consecutive chars N BYTEs buffer to hold chars EFh return current window name BYTE max length of returned name N BYTEs buffer to hold window name F3h return contents of input field BYTE field number N BYTEs buffer to hold field contents (size exactly equal to field size) F5h get field table entry BYTE field number 7-8 BYTEs buffer to hold field table entry F6h get type of a field BYTE field number BYTE type FCh get field table header 6 BYTEs buffer to store header MODE 10h "MANAGER STREAM" (valid only for opcodes listed here) 00h allow window to be moved horizontally 01h allow window to be moved vertically 02h allow window to change width 03h allow window to change height 04h allow window to be scrolled horizontally 05h allow window to be scrolled vertically 06h allow "Close Window" menu selection 07h allow window to be hidden 08h allow "Mark" menu 0Eh allow "Scissors" menu 10h allow DESQview main menu to be popped up 11h allow "Switch Windows" menu 12h allow "Open Window" menu 13h allow "Quit" menu selection 20h-33h opposite of 00h-13h, disallow specified action 40h notify if horizontal position of window changes 41h notify if vertical position of window changes 42h notify if width of window changes 43h notify if height of window changes 44h notify if window scrolled horizontally 45h notify if window scrolled vertically 46h notify if window is closed--program has to clean up and exit itself 47h notify if window is hidden 48h notify if "?" on main menu selected 49h notify if pointer message sent to window 4Ah notify if window is made active 4Bh notify if window is switched away from 4Ch notify if video mode changes 4Dh notify if "Scissors" menu "Cut" option selected 4Eh notify if "Scissors" menu "Copy" option selected 4Fh notify if "Scissors" menu "Paste" option selected 50h notify if DESQview main menu popped up 51h notify if DESQview main menu popped down 60h-71h opposite of 40h-51h: don't notify on specified event 84h attach window to parent task's window (both move together) 85h detach window from parent task's window (may move independently) 86h disable background operation 87h enable running in background 88h set minimum size of physical window BYTE rows BYTE columns 89h set maximum size of physical window BYTE rows BYTE cols 8Ah set primary asynchronous notification routine DWORD address of routine, 0000h:0000h means none on entry ES:DI = handle of window, DS:SI is 32-bit value set by 8Bh opcode mailbox contains message indicating event Opcode 40h horizontal movement DWORD object handle of window BYTE new row BYTE new col 41h vertical movement DWORD object handle of window BYTE new row BYTE new col 42h horizontal size change DWORD object handle of window BYTE new rows BYTE new cols 43h vertical size change DWORD object handle of window BYTE new rows BYTE new cols 44h scrolled horizontally DWORD object handle of window BYTE mouse row within window BYTE mouse column within window BYTE field mouse is on, 0 if none BYTE amount moved: >0 right, <0 left, 0 done 45h scrolled vertically DWORD object hande of window BYTE mouse row within window BYTE mouse column within window BYTE field mouse is on, 0 if none BYTE amount moved: >0 down, <0 up, 0 done 46h window closed DWORD object handle of window BYTE mouse pointer row BYTE mouse pointer column BYTE field mouse is on, 0 if none 47h window hidden 48h Help for Program selected DWORD object handle of window BYTE mouse pointer row BYTE mouse pointer column BYTE field mouse is on, 0 if none 49h pointer message sent to window 4Ah switched to window from another ("raise") 4Bh switched away from the window ("lower") 4Ch video mode changed BYTE new video mode 4Dh Scissors/cUt selected DWORD object handle of window BYTE row of upper left corner BYTE column of upper left corner BYTE field number ul corner is in, 0=none DWORD handle of orphaned window created to hold data BYTE height of region BYTE width of region 4Eh Scissors/Copy selected DWORD object handle of window BYTE row of upper left corner BYTE column of upper left corner BYTE field number ul corner is in, 0=none DWORD handle of orphaned window created to hold data BYTE height of region BYTE width of region 4Fh Scissors/Paste selected DWORD object handle of window BYTE row of upper left corner BYTE column of upper left corner BYTE field number ul corner is in, 0=none DWORD handle of orphaned window with data BYTE height of region BYTE width of region 50h main menu popped up 51h main menu popped down routine should restore all registers before returning 8Bh set async notification parameter DWORD 32-bit value passed to async routine in DS:SI ACh (DV2.2) perform regular select field attribute processing ADh (DV2.2) protect attributes in selected field from being lost AEh make window default notify window for owning app (API level 2.00+) AFh set selected field marker character BYTE character to display at left edge of selected fields BCh set standard field processing mode BDh set alternate field processing mode (enables cursor pad for menus) BEh enables changing reverse logical attributes with ECh opcode BFh disables changing reverse logical attributes with ECh opcode C0h make current window topmost in system C1h force current process into foreground C2h make current window topmost in process C3h position mouse pointer relative to origin of current field BYTE rows below upper left corner of field BYTE columns to right of upper left corner of field C4h position mouse pointer relative to origin of given field BYTE field number BYTE rows below upper left corner of field BYTE columns to right of upper left corner of field C5h hide current window C6h show windows for this process C7h hide all windows for this process C8h suspend process and hide all its windows C9h force current process into background CAh make current window bottom-most in process CBh cancel current window manager operation, remove DV menu, give control to topmost application CCh close window CEh reorder windows DWORD pointer to null-terminated list of words each word is segment of object handle for a window MODES 14h to 1Fh "USER STREAMS" normally NOPs, but may be defined by SETESC message to invoke FAR routines, one for each mode number on entry to handler, DS:SI = first byte of actual stream (not header) CX = #bytes in stream ES:DI = window's handle --------------------------------------------- INT 15 - DESQview 2.2 - SEND MESSAGE - SET PRIORITY AH = 12h BH = 06h BL = object 00h object handle in DWORD on top of stack STACK: DWORD new priority of object in task's OBJECTQ SeeAlso: AH=12h/BH=07h --------------------------------------------- INT 15 - DESQview 2.2 - SEND MESSAGE - GET PRIORITY AH = 12h BH = 07h BL = object 00h object handle in DWORD on top of stack Return: STACK: DWORD object priority Note: initially all objects have the same default value. Should make relative adjustments to this default value. SeeAlso: AH=12h/BH=06h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "SIZEOF" - GET OBJECT SIZE AH = 12h BH = 08h BL = object 00h handle in DWORD on top of stack timer: elapsed time since timer started pointer: number of messages queued to pointer object panel: number of panels in panel file 01h total chars in current task's default window 02h number of messages in task's mailbox (task's handle on stack) 03h number of messages in current task's mailbox 04h number of input buffers queued in task's kbd (handle on stack) 05h number of input buffers queued for current task's default kbd 06h number of objects queued in OBJECTQ (task's handle on stack) 07h number of objects queued in current task's OBJECTQ Return: DWORD on stack is result SeeAlso: AH=12h/BH=09h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "LEN" - GET OBJECT LENGTH AH = 12h BH = 09h BL = object 00h handle in DWORD on top of stack window: chars/line timer: timer remaining before timer expires 01h number of chars/line in current task's default window Return: DWORD on top of stack is length SeeAlso: AH=12h/BH=08h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "ADDTO" - SET OBJECT BITS AH = 12h BH = 0Ah BL = object 00h handle is DWORD on top of stack window: write characters and attributes timer: start timer for specified interval pointer: set control flags 01h write characters and attributes to task's default window 02h send message/status by value to mailbox (task's handle on stack) 03h send message/status by value to current task's default mailbox 04h set control flags on KEYBOARD object (handle on top of stack) 05h set control flags on task's default KEYBOARD object STACK: (if mailbox) DWORD status DWORD length of message DWORD address (if timer) DWORD duration in 1/100 seconds (if window) DWORD count of characters DWORD address of characters DWORD count of attributes DWORD address of attributes (otherwise) DWORD bits to set For keyboard objects, the bits have the following significance: bit 15 reserved, can't be set bit 14 unused bit 13 reserved, can't be set bit 12-5 unused bit 4 filter all keys (used with handler established by SETESC) bit 3 program continues executing while input in progress bit 2 insert mode active bit 1 keyboard is active bit 0 keyboard is in field mode For pointer objects, the bits have the following significance: bit 15 reserved, can't be set bit 14-8 unused bit 7 mouse pointer is hidden while in window bit 6 get messages even if window not topmost bit 5 get messages even if window not foreground bit 4 mouse button must be held 1/2 second before it "clicks" bit 3 pointer position is relative to screen origin, not window origin bit 2 send message on button release as well as button press bit 1 unused??? bit 0 send message only on button activity, not movement DV-specific, and INT 15h/AX=DE0Fh must have been called first SeeAlso: AH=12h/BH=0Bh --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "SUBFROM" - RESET OBJECT BITS AH = 12h BH = 0Bh BL = object 00h handle is DWORD on top of stack window: write attributes only mailbox: send message by reference pointer: reset control flags 01h write attributes only to task's default window 02h send msg/status by reference to mailbox (task's handle on stack) 03h send msg/status by reference to current task's mailbox 04h clear control flags on KEYBOARD object (handle on top of stack) 05h clear control flags on task's default KEYBOARD object 06h remove specific object from OBJECTQ (task's handle on stack) 07h remove specific object from task's default OBJECTQ STACK: (if mailbox) DWORD status DWORD length DWORD address (if window) DWORD number of attributes to write DWORD address of attributes (if objectq) DWORD handle of object to remove (otherwise) DWORD indicates which bits to clear SeeAlso: AH=12h/BH=0Ah --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "OPEN" - OPEN OBJECT AH = 12h BH = 0Ch BL = object 00h handle is DWORD on top of stack window: fill with given character keyboard: attach to a window timer: open pointer: start taking input for window panel: associate with a panel file 01h fill task's default window with given character 02h open given task's mailbox for input (task's handle on stack) 03h open current task's mailbox 04h attach a KEYBOARD to a window (handle on top of stack) 05h attach task's default KEYBOARD to a window 06h open a task's OBJECTQ (task's handle on top of stack) 07h open current task's OBJECTQ STACK: (if window) DWORD character to fill with (if keyboard) DWORD handle of window to attach to (if pointer) DWORD handle of window to attach to (if panel) DWORD length of filename DWORD address of filename (otherwise) nothing Notes: special action taken if first byte of panel file name is 1Bh if first two bytes of panel file "name" are C0hC3h, then the "name" IS the panel file result code of open may be retrieved with STATUS message SeeAlso: AH=12h/BH=0Dh --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "CLOSE" - CLOSE OBJECT AH = 12h BH = 0Dh BL = object 00h handle is DWORD on top of stack timer: close keyboard: detach from window pointer: stop taking input panel: close 02h close given task's mailbox (task's handle on top of stack) 03h close task's default mailbox 04h close KEYBOARD object (handle on top of stack) 05h close task's default KEYBOARD 06h close givent task's OBJECTQ (task's handle on top of stack) 07h close current task's OBJECTQ SeeAlso: AH=12h/BH=0Ch --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "ERASE" - ERASE OBJECT AH = 12h BH = 0Eh BL = object 00h handle is DWORD on top of stack window: clear keyboard: discard input timer: cancel current interval pointer: discard all pending messages 01h clear task's default window 02h discard all queued messages in mailbox (handle on top of stack) 03h discard all queued messages in current task's default mailbox 04h discard all input queued to KEYBOARD (handle on top of stack) 05h discard all input queued to task's default KEYBOARD 06h remove all objects from OBJECTQ (task's handle on top of stack) 07h remove all objects from current task's OBJECTQ SeeAlso: AH=12h/BH=02h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "STATUS" - GET OBJECT STATUS AH = 12h BH = 0Fh BL = object 00h handle is DWORD on top of stack timer: is it running? pointer: return status of last message panel: verify success of last OPEN or APPLY 02h return status of last msg READ from mailbox (handle on stack) 03h return status of last msg READ from task's default mailbox 04h get status of last msg from task's KEYBOARD (task handle on stk) 05h get status of last msg from task's default KEYBOARD 06h return whether OBJECTQ is open or not (handle on top of stack) 07h return whether task's default OBJECTQ is open or not Return: DWORD on top of stack is status Note: if object is a panel object, the status indicates the error code: 14h panel name not in panel directory 15h not enough memory to apply panel 16h invalid panel format 17h panel file already open 81h-92h DOS error codes+80h 95h not enough memory to open panel file 98h null panel file name --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "EOF" - GET OBJECT EOF STATUS AH = 12h BH = 10h BL = object 00h handle is DWORD on top of stack 01h returns TRUE if logical cursor past end of task's def window 02h return ??? for task's mailbox (task's handle on top of stack) 03h return ??? for current task's mailbox Return: DWORD on top of stack is status --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "AT" - POSITION OBJECT CURSOR AH = 12h BH = 11h BL = object 00h window's handle is DWORD on top of stack 01h position logical cursor on task's default window STACK: DWORD column DWORD row --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "SETNAME" - ASSIGN NAME TO MAILBOX AH = 12h BH = 11h BL = mailbox to name 00h DWORD on top of stack is mailbox handle 02h use given task's mailbox (task's handle on top of stack) 03h use current task's default mailbox STACK: DWORD length of name DWORD address of name SeeAlso: AX=DE0Eh --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "SETSCALE" - SET POINTER SCALE FACTOR AH = 12h BX = 1100h STACK: DWORD object handle for pointer object DWORD number of colums to scale pointer position to DWORD number of rows to scale pointer position to SeeAlso: AH=12h/BX=1200h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "READN" - GET NEXT N OBJECT BYTES AH = 12h BH = 12h BL = object 00h handle is DWORD on top of stack 01h read next N chars/attributes on task's default window STACK: DWORD count Return: STACK: DWORD width of screen line DWORD address DWORD count actually read SeeAlso: AH=12h/BH=04h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "GETSCALE" - GET POINTER SCALE FACTOR AH = 12h BX = 1200h STACK: DWORD object handle for pointer Return: STACK: DWORD pointer pos scaled as if window were this many colums wide DWORD pointer pos scaled as if window were this many rows high SeeAlso: AH=12h/BX=1100h --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "REDRAW" - REDRAW WINDOW AH = 12h BH = 13h BL = window object 00h DWORD on top of stack is handle for window to redraw 01h redraw task's default window --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "SETICON" - SPECIFY POINTER ICON AH = 12h BX = 1300h STACK: DWORD object handle for pointer DWORD character to use for pointer --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "SETESC" - SET ESCAPE ROUTINE ADDRESS AH = 12h BH = 14h BL = message modifier 00h handle is DWORD on top of stack 01h define user stream 04h intercept keystrokes from KEYBOARD to a window (handle on stack) 05h intercept keystrokes from task's default KEYBOARD to a window STACK: (if window) DWORD user stream number (14h-1Fh) DWORD address of FAR user stream handler (if keyboard) DWORD address of FAR filter function The keyboard filter function is called when the keyboard is in field mode. On entry, AL = character AH = 00h or extended ASCII code if AL = 00h BL = field number CH = cursor column CL = cursor row DL = field type modifier (sixth item in field table entry) DH = ??? (seventh item in field table entry) ES:SI = window's handle (also, in DV 2.00, DS:DI points to the field table entry. This may change in other versions) The filter function should return AH = 00h use keystroke 01h ignore keystroke >1 beep and ignore keystroke --------------------------------------------- INT 15 - TopView - SEND MESSAGE - "LOCK" - REQUEST EXCLUSIVE ACCESS TO RESOURCE AH = 12h BH = 14h BL = object 00h mailbox handle is DWORD on top of stack 02h use given task's mailbox (task's handle on top of stack) 03h use current task's default mailbox Note: release exclusive access by sending CLOSE message to mailbox access may be requested multiple times, and requires multiple CLOSEs SeeAlso: AH=12h/BH=0Dh --------------------------------------------- INT 15 - DESQview 2.2 - SEND MESSAGE - SET FLAGS AH = 12h BH = 15h BL = object 00h DWORD on top of stack mailbox, keyboard, or pointer only 02h mailbox for task whose handle is on top of stack 03h mailbox for current task 04h keyboard for task whose handle is on top of stack 05h keyboard for current task STACK: DWORD flags if mailbox: bit 0: all mail messages in common memory bit 1: allow write even if closed bit 2: don't erase messages when mailbox closed if keyboard: bit 5: exclusive input when keyboard in use for input Return: nothing Note: this call is only available if the API level has been set to at least 2.2 SeeAlso: AH=12h/BH=16h --------------------------------------------- INT 15 - DESQview 2.2 - SEND MESSAGE - GET FLAGS AH = 12h BH = 16h BL = object 00h DWORD on top of stack mailbox, keyboard, or pointer only 02h mailbox for task whose handle is on top of stack 03h mailbox for current task 04h keyboard for task whose handle is on top of stack 05h keyboard for current task Return: STACK: DWORD current control flags Note: this call is only available if the API level has been set to at least 2.2 SeeAlso: AH=12h/BH=15h --------------------------------------------- INT 15 - DESQview - GET PROGRAM NAME AX = DE00h Return: AX = offset into DESQVIEW.DVO of current program's record (see below) SeeAlso: AX=DE07h Format of program entry in DESQVIEW.DVO: Offset Size Description 00h BYTE length of name 01h N BYTEs name 2 BYTEs keys to invoke program (second = 00h if only one key used) WORD ??? seems always to be 0000h BYTE end flag: 00h for all but last entry, which is FFh --------------------------------------------- INT 15 - DESQview - UPDATE "OPEN WINDOW" MENU AX = DE01h Return: nothing Note: reads DESQVIEW.DVO, disables Open menu if file not in current directory --------------------------------------------- INT 15 - DESQview 1.x only - SET ??? FLAG FOR CURRENT WINDOW AX = DE02h Return: nothing Note: this call is a NOP in DV 2.x SeeAlso: AX=DE03h --------------------------------------------- INT 15 - DESQview 1.x only - GET ??? FOR CURRENT WINDOW AX = DE03h Return: AX = ??? for current window BX = ??? for current window Note: this call is a NOP in DV 2.x SeeAlso: AX=DE02h --------------------------------------------- INT 15 - DESQview - GET AVAILABLE COMMON MEMORY AX = DE04h Return: BX = bytes of common memory available CX = largest block available DX = total common memory in bytes SeeAlso: AX=DE05h,DE06h --------------------------------------------- INT 15 - DESQview - GET AVAILABLE CONVENTIONAL MEMORY AX = DE05h Return: BX = K of memory available CX = largest block available DX = total conventional memory in K SeeAlso: AX=DE04h,DE06h --------------------------------------------- INT 15 - DESQview - GET AVAILABLE EXPANDED MEMORY AX = DE06h Return: BX = K of expanded memory available CX = largest block available DX = total expanded memory in K SeeAlso: AX=DE04h,DE05h --------------------------------------------- INT 15 - DESQview - "APPNUM" - GET CURRENT PROGRAM'S NUMBER AX = DE07h Return: AX = number of program as it appears on the "Switch Windows" menu SeeAlso: AX=DE00h --------------------------------------------- INT 15 - DESQview - GET ??? AX = DE08h Return: AX = 0000h if ??? is not set to the current task 0001h if ??? is set to the current task --------------------------------------------- INT 15 - DESQview - UNIMPLEMENTED AX = DE09h Return: nothing (NOP in DV 1.x and 2.x) --------------------------------------------- INT 15 - DESQview 2.x - "DBGPOKE" - DISPLAY CHARACTER ON STATUS LINE AX = DE0Ah BL = character Return: character displayed, next call will display in next position (which wraps back to the start of the line if off the right edge of screen) Notes: displays character on bottom line of *physical* screen, regardless of current size of window (even entirely hidden) does not know about graphics display modes, just pokes the characters into display memory SeeAlso: AX=1003h --------------------------------------------- INT 15 - DESQview 2.x - "APILEVEL" - DEFINE MINIMUM API LEVEL REQUIRED AX = DE0Bh BL = API level major version number BH = API level minor version number Return: AX = maximum API level (AL = major, AH = minor) Notes: if the requested API level is greater than the version of DESQview, a "You need a newer version" error window is popped up some early copies of DV 2.00 return AX=0200h instead of 0002h --------------------------------------------- INT 15 - DESQview 2.x - "GETMEM" - ALLOCATE "SYSTEM" MEMORY AX = DE0Ch BX = number of bytes Return: ES:DI -> allocated block SeeAlso: AX=1001h,DE0Dh --------------------------------------------- INT 15 - DESQview 2.x - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY AX = DE0Dh ES:DI -> previously allocated block Return: nothing SeeAlso: AX=1002h,DE0Ch --------------------------------------------- INT 15 - DESQview 2.x - FIND MAILBOX BY NAME AX = DE0Eh ES:DI -> name to find CX = length of name Return: BX = 0000h not found 0001h found DS:SI = object handle SeeAlso: AH=12h/BH=11h --------------------------------------------- INT 15 - DESQview 2.x - ENABLE DESQview EXTENSIONS AX = DE0Fh Return: AX and BX destroyed (seems to be bug, weren't saved&restored) Notes: sends a manager stream with opcodes AEh, BDh, and BFh to task's window enables an additional mouse mode --------------------------------------------- INT 15 - DESQview 2.x - "PUSHKEY" - PUT KEY INTO KEYBOARD INPUT STREAM AX = DE10h BH = scan code BL = character Return: nothing Note: a later read will get the keystroke as if it had been typed by the user early copies of DV 2.00 destroy AX, BX, ES, and DI SeeAlso: INT 16/AH=05h --------------------------------------------- INT 15 - DESQview 2.x - ENABLE/DISABLE AUTOMATIC JUSTIFICATION OF WINDOW AX = DE11h BL = 00h viewport will not move automatically nonzero viewport will move to keep cursor visible Return: nothing --------------------------------------------- INT 15 - DESQview 2.01+ - SET ??? AX = DE12h BX = 0000h clear ??? flag nonzero set ??? flag Return: nothing --------------------------------------------- INT 15 - DESQview 2.2 - GET CRITICAL NESTING COUNT AX = DE13h Return: BX = number of calls to BEGINC (see INT 15/AX=101Bh) without matching ENDC (see INT 15/AX=101Ch) SeeAlso: AX=101Bh,101Ch,DE1Bh,DE1Ch --------------------------------------------- INT 15 - DESQview 2.2 - GET OBJECT TYPE AX = DE14h ES:DI -> object Return: BL = 00h not an object 08h window or task 09h mailbox 0Ah keyboard 0Bh timer 0Ch objectq 0Fh pointer 10h panel SeeAlso: AX=1016h --------------------------------------------- INT 15 - DESQview 2.2 - SET MAILBOX ERROR HANDLING AX = DE15h BL = 00h post system error on conditions listed below 01h return carry flag set on calls to ADDTO, SUBFROM, and WRITE messages sent to mailboxes which fail due to lack of system or common memory Return: nothing SeeAlso: AX=DE16h --------------------------------------------- INT 15 - DESQview 2.2 - GET MAILBOX ERROR HANDLING AX = DE16h Return: BL = 00h post system error 01h return carry flag set SeeAlso: AX=DE15h --------------------------------------------- INT 15 - DESQview 2.20-2.25 - reserved AX = DE17h Return: pops up "Programming error" window Note: AX = 1117h is NOT identical to this call under DESQview 2.20 thru 2.25 --------------------------------------------- INT 15 - DESQview 2.26+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT AX = 1117h BX = 0000h get current mapping context without setting nonzero set new mapping context Return: BX = mapping context in effect before call Notes: mapping contexts determine conventional-memory addressability; setting a mapping context ensures that the associated program and data areas are in memory for access. Usable by drivers, TSRs and shared programs. Caller need not be running under DESQview --------------------------------------------- INT 15 - DESQview 2.2 - ??? AX = DE18h BP = function number high byte must be 10h low byte is function 00h set ??? BL = ??? (00h-10h, video mode???) BH = value to store 03h set ??? BL = ??? (stored in driver) 0Ah get ??? ES:DI -> 18-byte buffer to hold ??? Note: calls video driver (NOP for Hercules driver,probably CGA and MCGA also) --------------------------------------------- INT 15 - DESQview 2.26 - ALLOCATE "COMMON" MEMORY AX = DE19h BX = number of bytes to allocate Return: AX = 0000h successful ES:DI -> allocated block 0001h insufficient memory SeeAlso: AX=DE0Ch,DE1Ah --------------------------------------------- INT 15 - DESQview 2.26 - DEALLOCATE "COMMON" MEMORY AX = DE1Ah DS:SI -> previously allocated block Return: ??? SeeAlso: AX=DE0Dh,DE19h --------------------------------------------- INT 15 - DESQview 2.26 - DECREMENT CRITICAL NESTING COUNT AX = DE1Bh Return: nothing SeeAlso: AX=DE13h,DE1Ch --------------------------------------------- INT 15 - DESQview 2.26 - INCREMENT CRITICAL NESTING COUNT AX = DE1Ch Return: nothing SeeAlso: AX=DE13h,DE1Bh --------------------------------------------- INT 15 - DESQview 2.26 - ??? AX = DE1Dh DX = segment of ??? object ??? Return: AX = ??? --------------------------------------------- INT 15 - DESQview 2.26 - GET TRUE VIDEO PARAMETERS AX = DE1Eh Return: BL = actual video mode (may differ from INT 10/AH=0Fh return) CL = actual number of rows on screen CH = actual number of columns on screen SeeAlso: INT 10/AH=0Fh --------------------------------------------- INT 15 - DESQview 2.26 - GET ??? AX = DE1Fh Return: BX = segment of ??? object or 0000h if none --------------------------------------------- INT 15 - DESQview 2.26 - INTERRUPT ANOTHER TASK AX = DE20h BX = segment of handle of task to interupt DX:CX -> interrupt routine Return: ??? --------------------------------------------- INT 15 - DESQview 2.26 - CONTROL 386 SCREEN VIRTUALIZATION AX = DE21h BX = 0000h turn off nonzero turn on Return: BX = old state of virtualization --------------------------------------------- INT 15 - DESQview 2.26 - GET TASK MEMORY STATUS AX = DE22h DX = segment of task handle Return: DX = total amount of memory in paragraphs BX = amount of system memory in paragraphs CX = largest block of system memory available in paragraphs AX = flags bit 0: system memory resides in shared memory 1: process's memory is swapped out 2: system memory is swapped out --------------------------------------------- INT 21 - DESQview - INSTALLATION CHECK AH = 2Bh AL = subfunction (DV v2.00+) 01h get version Return: BX = version (BH = major, BL = minor) Note: early copies of v2.00 return 0002h 02h get shadow buffer info, and start shadowing Return: BH = rows in shadow buffer BL = columns in shadow buffer DX = segment of shadow buffer 04h get shadow buffer info Return: BH = rows in shadow buffer BL = columns in shadow buffer DX = segment of shadow buffer 05h stop shadowing CX = 4445h ('DE') DX = 5351h ('SQ') Return: AL = FFh if DESQview not installed Note: in DESQview v1.x, there were no subfunctions; this call only identified whether or not DESQview was loaded SeeAlso: INT 10/AH=FEh,FFh --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 External Dev Interface - INSTALLATION CHECK AX = DE00h BX = 4445h ("DE") CX = 5844h ("XD") DX = 4931h ("I1") Return: AL = FFh if installed (even if other registers do not match) if BX,CX, and DX were as specified on entry, BX = 4845h CX = 5245h DX = 4456h ("DV") --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 External Dev Itrface - DRIVER CUSTOM SUBFUNC AX = DE01h BX = driver ID other registers as needed by driver Note: XDI drivers should pass this call through to previous handler if ID does not match --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XMS XDI - ??? AX = DE01h BX = FFFEh CX = 4D47h DX = 0052h Return: AL = FFh DX = 584Dh --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - DVTree DVTXDI.COM AX = DE01h BX = 7474h CL = function 00h installation check Return: AL = FFh 01h get process handle DX = keys on Open Window menu (DL = first, DH = second) Return: AX = process handle or 0000h if not running Return: BX = 4F4Bh ("OK") DL = ??? Note: DVTree is a shareware DOS shell/DESQview process manager by Mike Weaver --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 External Device Interface - DV INIT COMPLETE AX = DE02h BX = mapping context of DESQview DX = handle of DESQview system task SeeAlso: AX=DE03h Note: XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 External Device Interface - DV TERMINATION AX = DE03h BX = mapping context of DESQview DX = handle of DESQview system task SeeAlso: AX=DE02h Note: XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 External Device Interface - ADD PROCESS AX = DE04h BX = mapping context of new process DX = handle of process Return: nothing Notes: XMS XDI handler (installed by default) allocates a 22-byte record (see below) from "common" memory to control access to XMS memory all DOS, BIOS, and DV API calls are valid in handler XDI drivers should pass all calls through to previous handler SeeAlso: AX=DE05h Format of XMS XDI structure: Offset Size Description 00h DWORD pointer to 10-byte record??? 04h DWORD pointer to next XMS XDI structure 08h WORD mapping context 0Ah BYTE ??? 0Bh 5 BYTEs XMS entry point to return for INT 2F/AX=4310h (FAR jump to next field) 10h 6 BYTEs FAR handler for XMS driver entry point (consists of a FAR CALL followed by RETF) --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 External Device Interface - REMOVE PROCESS AX = DE05h BX = mapping context of process DX = handle of process Return: nothing Notes: XMS XDI handler releases the structure allocated by AX=DE04h XDI drivers should pass all calls through to previous handler SeeAlso: AX=DE04h --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - CREATE TASK AX = DE06h BX = mapping context of process containing task??? DX = handle of task??? Note: XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - TERMINATE TASK AX = DE07h BX = mapping context of process containing task??? DX = handle of task??? Note: XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - SAVE STATE AX = DE08h BX = mapping context of task being switched from DX = handle of task being switched from Notes: invoked prior to task swap, interrupts, etc XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - RESTORE STATE AX = DE09h BX = mapping context of task being switched to DX = handle of task being switched to Notes: state is restored except for interrupts XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - CHANGE KEYBOARD FOCUS AX = DE0Ah BX = mapping context of task receiving focus DX = handle of running task Note: XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - DVP PROCESSING COMPLETE AX = DE0Bh BX = mapping context of DESQview system task CX = number of system memory paragraphs required for the use of all XDI drivers (DV will add this to system memory in DVP buffer) DX = handle of DESQview system task SI = mapping context of new process if it starts ES:DI -> DVP buffer Notes: once DV invokes this function, the DVP buffer contents may be changed XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - SWAP OUT PROCESS AX = DE0Ch BX = mapping context of task being swapped out DX = handle of DESQview system task Note: XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - SWAP IN PROCESS AX = DE0Dh BX = mapping context of process just swapped in DX = handle of DESQview system task Note: XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 2F - Multiplex - DESQview 2.26 XDI - DVP START FAILED AX = DE0Eh BX = mapping context of DESQview system task DX = handle of DESQview system task SI = mapping context of failed process Note: XDI drivers should pass all calls through to previous handler --------------------------------------------- INT 67 - Virtual Control Program Interface - INSTALLATION CHECK AX = DE00h Return: AH = 00h VCPI is present BH = major version number BL = minor version number AH nonzero VCPI not present --------------------------------------------- INT 67 - Virtual Control Program Interface - GET PROTECTED MODE INTERFACE AX = DE01h ES:DI -> 4K page table buffer DS:SI -> three descriptor table entries in GDT first becomes code segment descriptor, other two for use by main control program Return: AH = 00h successful DI -> first unused page table entry in buffer EBX -> protected mode entry point in code segment AH = nonzero failed --------------------------------------------- INT 67 - Virtual Control Program Interface - GET MAX PHYSICAL MEMORY ADDRESS AX = DE02h Return: AH = 00h successful EDX = physical address of highest 4K memory page AH nonzero: failed --------------------------------------------- INT 67 - Virtual Control Program Interface - GET NUMBER OF FREE 4K PAGES AX = DE03h Return: AH = 00h successful EDX = number of free 4K pages AH nonzero: failed Notes: returns total number of pages available to ALL tasks in system also available in protected mode by calling the protected-mode VCPI entry point SeeAlso: AX=DE04h --------------------------------------------- INT 67 - Virtual Control Program Interface - ALLOCATE A 4K PAGE AX = DE04h Return: AH = 00h successful EDX = physical address of allocated page AH nonzero: failed Notes: the client program is responsible for freeing all memory allocated with this call before terminating also available in protected mode by calling the protected-mode VCPI entry point SeeAlso: AX=DE03h,DE05h --------------------------------------------- INT 67 - Virtual Control Program Interface - FREE 4K PAGE AX = DE05h EDX = physical address of 4K page Return: AH = 00h successful AH nonzero: failed Note: also available in protected mode by calling the protected-mode VCPI entry point SeeAlso: AX=DE04h --------------------------------------------- INT 67 - Virtual Control Program Interface - GET PHYS ADDR OF PAGE IN FIRST MB AX = DE06h CX = page number (linear address shifted right 12 bits) Return: AH = 00h successful EDX = physical address of page AH nonzero: invalid page number (AH = 8Bh recommended) --------------------------------------------- INT 67 - Virtual Control Program Interface - READ CR0 AX = DE07h Return: AH = 00h EBX = value of Control Register 0 SeeAlso: AX=DE07h --------------------------------------------- INT 67 - Virtual Control Program Interface - READ DEBUG REGISTERS AX = DE08h ES:DI -> array of 8 DWORDs Return: AH = 00h buffer filled with DR0 first, DR7 last, DR4 and DR5 unused SeeAlso: AX=DE09h --------------------------------------------- INT 67 - Virtual Control Program Interface - SET DEBUG REGISTERS AX = DE09h ES:DI -> array of 8 DWORDs holding new values of debug registers Return: AH = 00h Note: values for DR4 and DR5 ignored SeeAlso: AX=DE08h --------------------------------------------- INT 67 - Virtual Control Program Interface - GET 8259 INTERRUPT VECTOR MAPPINGS AX = DE0Ah Return: AH = 00h successful BX = first vector used by master 8259 (IRQ0) CX = first vector used by slave 8259 (IRQ8) AH nonzero: failed Note: CX is undefined in systems without a slave 8259 SeeAlso: AX=DE0Bh --------------------------------------------- INT 67 - Virtual Control Program Interface - SET 8259 INTERRUPT VECTOR MAPPINGS AX = DE0Bh BX = first vector used by master 8259 CX = first vector used by slave 8259 interrupts disabled Return: AH = 00h successful AH nonzero: failed Notes: This call merely informs the server that the client has changed the interrupt mappings. The client may not change the mappings if they have already been changed by the server or another client, and is responsible for restoring the original mappings before terminating. SeeAlso: AX=DE0Ah --------------------------------------------- INT 67 - Virtual Control Program Interface - SWITCH TO PROTECTED MODE AX = DE0Ch ESI = linear address in first megabyte of values for system registers interrupts disabled Return: interrupts disabled GDTR, IDTR, LDTR, TR loaded SS:ESP must have at least 16 bytes space, and the entry point is required to set up a new stack before enabling interrupts EAX, ESI, DS, ES, FS, GS destroyed SeeAlso: INT 15/AH=89h Note: in protected mode, calling the protected-mode VCPI entry point with AX = DE0Ch DS = segment selector from function DE01h SS:ESP in first megabyte of linear memory STACK:QWORD return address from FAR call to 32-bit segment DWORD EIP DWORD CS DWORD reserved for EFLAGS DWORD ESP DWORD SS DWORD ES DWORD DS DWORD FS DWORD GS and interrupts disabled, will switch to virtual86 mode with interrupts disabled, all segment registers loaded, and EAX destroyed. Format of system register values for switch to protected mode: Offset Size Description 00h DWORD value for CR3 04h DWORD linear address in first megabyte of value for GDTR 08h DWORD linear address in first megabyte of value for IDTR 0Ch WORD value for LDTR 0Eh WORD value for TR 10h PWORD CS:EIP of protected mode entry-point ---------------------------------------------