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- The two programs included in this archive, DOORS and DOORS2 allow
- a system with both a monochrome AND a graphics monitor to switch
- between the two monitors "on the fly", without leaving software
- that is running.
-
- Either program becomes memory resident when it is run.
-
- USAGE:
-
- DOORS - after it has been run, pressing the Alt - Right Shift
- keys together will switch the active monitors, and copy
- all text to the other monitor.
-
- DOORS2 - pressing the Alt - Left Shift keys together will switch
- to the other monitor. Pressing the Alt - Right Shift
- keys will copy the screen from the active monitor
- to the unused monitor, but will return the cursor
- back to its original screen.
-
-
- I modified the original program because:
-
- - I prefer to work with the monochrome monitor because of the
- clarity of the text, but very often I would like text shown
- on the graphics monitor for reference (in effect, this lets
- me see 50 lines of information at a time);
-
- - Some programs (such as PC-WRITE) write directly to video memory,
- and switching monitors while using those programs only serves
- to confuse them.
-
-
- Caveats:
-
- - If you are working with the graphics monitor, the routines will
- only work if you are in an 80-column text mode (y'all can't
- copy <or try to> graphics to the monochrome screen)
-
- - If you are working with the graphics monitor, you may lose
- information stored on pages other than the active display page.
- (The color/graphics card has enough memory to hold 4 80-column
- display "pages"). These routines work by copying information
- from the active page to the monochrome monitor (and back again,
- if you're using DOORS2), but they make no provision for saving
- the other display pages. This will affect the operation of
- very few programs, however. Very few programs make use of the
- additional text "pages" for the C/G adaptor card. PC-WRITE
- is one program that does, however -- if you are using PC-WRITE
- on the graphics monitor, PC-WRITE stores its "help" screen
- information on the other video pages. Using these routines
- with PC-WRITE will wipe out the "help" screens, but it will
- NOT affect file being edited or the operation of PC-WRITE.
-
- - The routines don't bother to check if they had been previously
- installed - so be careful, run 'em only once.
-
- - Use only ONE of the routines (either DOORS or DOORS2) -
- don't try to use both.
-
- - The modification to the installation code that I made requires
- DOS 2.0 or above -- the routines DON'T check the DOS version
- that is being used.
-
- - If switching FROM the monochrome monitor, the routines switch
- to the BW80 mode for the graphics monitor (see the source code
- for a note on changing the mode to color, if desired).
-
-
- Information on the original DOORS.ASM program:
-
- ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
- ╔════════════════════════════════════════════════╗█
- ║ PCMagizine ASseMbler ║█
- ║ ║█
- ║ The programs began their lives in ║█
- ║ PC Magazine. A detailed description of ║█
- ║ the program can be found in the issue ║█
- ║ referenced below. ║█
- ║ ║█
- ╚════════════════════════════════════════════════╝▀
-
- DOORS.ASM John Dickinson, "Try a Door, Not a Window"
- Vol. 4, No. 3 (February 5, 1985)
- Coordinating your color and monochrome
- displays
-
-
-
- Modified January 1986.
-
- Please let me know about any bugs/comments that you have via
- Gene Plantz' IBBS, 312-882-4227.
-
- Mike Pechnyo
- ID1206