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 "ldt.h"
  12 #include "callback.h"
  13
  14   /* Hook data (pointed to by a HHOOK) */
  15 typedef struct
  16 {
  17     HHOOK    next;   /* Next hook in chain */
  18     HOOKPROC proc;   /* Hook procedure */
  19     short    id;     /* Hook id (WH_xxx) */
  20     HTASK    htask;  /* Task owning this hook */
  21 } HOOKDATA;
  22
  23
  24 #define FIRST_HOOK  WH_MSGFILTER
  25 #define LAST_HOOK   WH_SHELL
  26
  27 #define SYSTEM_HOOK(id)  (systemHooks[(id)-FIRST_HOOK])
  28 #define TASK_HOOK(id)    (taskHooks[(id)-FIRST_HOOK])
  29 #define INTERNAL_CALL_HOOK(hhook,code,wparam,lparam) \
  30     ((hhook) ? CallHookProc(((HOOKDATA*)PTR_SEG_TO_LIN(hhook))->proc,\
  31                             code, wparam, lparam) : 0)
  32
  33 #define CALL_SYSTEM_HOOK(id,code,wparam,lparam) \
  34     INTERNAL_CALL_HOOK(SYSTEM_HOOK(id),code,wparam,lparam)
  35 #define CALL_TASK_HOOK(id,code,wparam,lparam) \
  36     INTERNAL_CALL_HOOK(TASK_HOOK(id),code,wparam,lparam)
  37
  38 extern HHOOK systemHooks[];
  39 extern HHOOK taskHooks[];
  40
  41 #endif  /* HOOK_H */