home *** CD-ROM | disk | FTP | other *** search
- #ifndef _EXDLL_H_
- #define _EXDLL_H_
-
- #include <windows.h>
-
- #if defined(__GNUC__)
- #define UNUSED __attribute__((unused))
- #else
- #define UNUSED
- #endif
-
- // only include this file from one place in your DLL.
- // (it is all static, if you use it in two places it will fail)
-
- #define EXDLL_INIT() { \
- g_stringsize=string_size; \
- g_stacktop=stacktop; \
- g_variables=variables; }
-
- // For page showing plug-ins
- #define WM_NOTIFY_OUTER_NEXT (WM_USER+0x8)
- #define WM_NOTIFY_CUSTOM_READY (WM_USER+0xd)
- #define NOTIFY_BYE_BYE 'x'
-
- typedef struct _stack_t {
- struct _stack_t *next;
- char text[1]; // this should be the length of string_size
- } stack_t;
-
-
- static unsigned int g_stringsize;
- static stack_t **g_stacktop;
- static char *g_variables;
-
- static int __stdcall popstring(char *str) UNUSED; // 0 on success, 1 on empty stack
- static void __stdcall pushstring(const char *str) UNUSED;
- static char * __stdcall getuservariable(const int varnum) UNUSED;
- static void __stdcall setuservariable(const int varnum, const char *var) UNUSED;
-
- enum
- {
- INST_0, // $0
- INST_1, // $1
- INST_2, // $2
- INST_3, // $3
- INST_4, // $4
- INST_5, // $5
- INST_6, // $6
- INST_7, // $7
- INST_8, // $8
- INST_9, // $9
- INST_R0, // $R0
- INST_R1, // $R1
- INST_R2, // $R2
- INST_R3, // $R3
- INST_R4, // $R4
- INST_R5, // $R5
- INST_R6, // $R6
- INST_R7, // $R7
- INST_R8, // $R8
- INST_R9, // $R9
- INST_CMDLINE, // $CMDLINE
- INST_INSTDIR, // $INSTDIR
- INST_OUTDIR, // $OUTDIR
- INST_EXEDIR, // $EXEDIR
- INST_LANG, // $LANGUAGE
- __INST_LAST
- };
-
- typedef struct {
- int autoclose;
- int all_user_var;
- int exec_error;
- int abort;
- int exec_reboot;
- int reboot_called;
- int XXX_cur_insttype; // deprecated
- int XXX_insttype_changed; // deprecated
- int silent;
- int instdir_error;
- int rtl;
- int errlvl;
- int alter_reg_view;
- } exec_flags_type;
-
- typedef struct {
- exec_flags_type *exec_flags;
- int (__stdcall *ExecuteCodeSegment)(int, HWND);
- void (__stdcall *validate_filename)(char *);
- } extra_parameters;
-
- // utility functions (not required but often useful)
- static int __stdcall popstring(char *str)
- {
- stack_t *th;
- if (!g_stacktop || !*g_stacktop) return 1;
- th=(*g_stacktop);
- lstrcpyA(str,th->text);
- *g_stacktop = th->next;
- GlobalFree((HGLOBAL)th);
- return 0;
- }
-
- static void __stdcall pushstring(const char *str)
- {
- stack_t *th;
- if (!g_stacktop) return;
- th=(stack_t*)GlobalAlloc(GPTR,sizeof(stack_t)+g_stringsize);
- lstrcpynA(th->text,str,g_stringsize);
- th->next=*g_stacktop;
- *g_stacktop=th;
- }
-
- static char * __stdcall getuservariable(const int varnum)
- {
- if (varnum < 0 || varnum >= __INST_LAST) return NULL;
- return g_variables+varnum*g_stringsize;
- }
-
- static void __stdcall setuservariable(const int varnum, const char *var)
- {
- if (var != NULL && varnum >= 0 && varnum < __INST_LAST)
- lstrcpyA(g_variables + varnum*g_stringsize, var);
- }
-
-
-
- #endif//_EXDLL_H_
-