include/hook.h

   1 /*
   2  * Windows hook definitions
   3  *
   4  * Copyright 1994 Alexandre Julliard
   5  */
   6
   7 #ifndef HOOK_H
   8 #define HOOK_H
   9
  10 #include "windows.h"
  11 #include "user.h"
  12
  13   /* Hook data (pointed to by a HHOOK) */
  14 typedef struct
  15 {
  16     HHOOK    next;   /* Next hook in chain */
  17     HOOKPROC proc;   /* Hook procedure */
  18     short    id;     /* Hook id (WH_???) */
  19     HTASK    htask;  /* Task owning this hook */
  20 } HOOKDATA;
  21
  22
  23 #define FIRST_HOOK  WH_MSGFILTER
  24 #define LAST_HOOK   WH_SHELL
  25
  26 #define SYSTEM_HOOK(id)  (systemHooks[(id)-FIRST_HOOK])
  27 #define TASK_HOOK(id)    (taskHooks[(id)-FIRST_HOOK])
  28 #define INTERNAL_CALL_HOOK(hhook,code,wparam,lparam) \
  29     ((hhook) ? CallHookProc(((HOOKDATA*)(hhook))->proc,code,wparam,lparam) : 0)
  30
  31 #define CALL_SYSTEM_HOOK(id,code,wparam,lparam) \
  32     INTERNAL_CALL_HOOK(SYSTEM_HOOK(id),code,wparam,lparam)
  33 #define CALL_TASK_HOOK(id,code,wparam,lparam) \
  34     INTERNAL_CALL_HOOK(TASK_HOOK(id),code,wparam,lparam)
  35
  36 extern DWORD CallHookProc( HOOKPROC func, short code,
  37                            WPARAM wParam, LPARAM lParam );  /* callback.c */
  38
  39 extern HHOOK systemHooks[];
  40 extern HHOOK taskHooks[];
  41
  42 #endif  /* HOOK_H */