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Sweden-Number/windows/hook.c

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/*
* Windows hook functions
*
* Copyright 1994, 1995 Alexandre Julliard
* 1996 Andrew Lewycky
*
* Based on investigations by Alex Korobka
*/
/*
* Warning!
* A HHOOK is a 32-bit handle for compatibility with Windows 3.0 where it was
* a pointer to the next function. Now it is in fact composed of a USER heap
* handle in the low 16 bits and of a HOOK_MAGIC value in the high 16 bits.
*/
#include "winuser.h"
#include "wine/winuser16.h"
#include "wine/winbase16.h"
#include "hook.h"
#include "queue.h"
#include "task.h"
#include "user.h"
#include "heap.h"
#include "struct32.h"
#include "winproc.h"
#include "debug.h"
#pragma pack(1)
/* Hook data (pointed to by a HHOOK) */
typedef struct
{
HANDLE16 next; /* 00 Next hook in chain */
HOOKPROC proc WINE_PACKED; /* 02 Hook procedure */
INT16 id; /* 06 Hook id (WH_xxx) */
HQUEUE16 ownerQueue; /* 08 Owner queue (0 for system hook) */
HMODULE16 ownerModule; /* 0a Owner module */
WORD flags; /* 0c flags */
} HOOKDATA;
#pragma pack(4)
#define HOOK_MAGIC ((int)'H' | (int)'K' << 8) /* 'HK' */
/* This should probably reside in USER heap */
static HANDLE16 HOOK_systemHooks[WH_NB_HOOKS] = { 0, };
typedef VOID (*HOOK_MapFunc)(INT, INT, WPARAM *, LPARAM *);
typedef VOID (*HOOK_UnMapFunc)(INT, INT, WPARAM, LPARAM, WPARAM,
LPARAM);
/***********************************************************************
* HOOK_Map16To32Common
*/
static void HOOK_Map16To32Common(INT id, INT code, WPARAM *pwParam,
LPARAM *plParam, BOOL bA )
{
switch( id )
{
case WH_MSGFILTER:
case WH_SYSMSGFILTER:
case WH_GETMESSAGE:
case WH_JOURNALRECORD:
{
LPMSG16 lpmsg16 = PTR_SEG_TO_LIN(*plParam);
LPMSG lpmsg32 = HeapAlloc( SystemHeap, 0, sizeof(*lpmsg32) );
STRUCT32_MSG16to32( lpmsg16, lpmsg32 );
*plParam = (LPARAM)lpmsg32;
break;
}
case WH_JOURNALPLAYBACK:
{
LPEVENTMSG16 lpem16 = PTR_SEG_TO_LIN(*plParam);
LPEVENTMSG lpem32 = HeapAlloc( SystemHeap, 0, sizeof(*lpem32) );
lpem32->message = lpem16->message;
lpem32->paramL = lpem16->paramL;
lpem32->paramH = lpem16->paramH;
lpem32->time = lpem16->time;
lpem32->hwnd = 0; /* FIXME */
*plParam = (LPARAM)lpem32;
break;
}
case WH_CALLWNDPROC:
{
LPCWPSTRUCT16 lpcwp16 = PTR_SEG_TO_LIN(*plParam);
LPCWPSTRUCT lpcwp32 = HeapAlloc( SystemHeap, 0, sizeof(*lpcwp32) );
lpcwp32->hwnd = lpcwp16->hwnd;
lpcwp32->lParam = lpcwp16->lParam;
if (bA) WINPROC_MapMsg16To32A( lpcwp16->message, lpcwp16->wParam,
&lpcwp32->message, &lpcwp32->wParam,
&lpcwp32->lParam );
else WINPROC_MapMsg16To32W( lpcwp16->hwnd,lpcwp16->message, lpcwp16->wParam,
&lpcwp32->message, &lpcwp32->wParam,
&lpcwp32->lParam );
*plParam = (LPARAM)lpcwp32;
break;
}
case WH_CBT:
switch (code)
{
case HCBT_CREATEWND:
{
LPCBT_CREATEWND16 lpcbtcw16 = PTR_SEG_TO_LIN(*plParam);
LPCREATESTRUCT16 lpcs16 = PTR_SEG_TO_LIN(lpcbtcw16->lpcs);
LPCBT_CREATEWNDA lpcbtcw32 = HeapAlloc( SystemHeap, 0,
sizeof(*lpcbtcw32) );
lpcbtcw32->lpcs = HeapAlloc( SystemHeap, 0,
sizeof(*lpcbtcw32->lpcs) );
STRUCT32_CREATESTRUCT16to32A( lpcs16,
(LPCREATESTRUCTA)lpcbtcw32->lpcs );
if (HIWORD(lpcs16->lpszName))
lpcbtcw32->lpcs->lpszName =
(bA) ? PTR_SEG_TO_LIN(lpcs16->lpszName)
: HEAP_strdupAtoW( SystemHeap, 0,
PTR_SEG_TO_LIN(lpcs16->lpszName) );
else
lpcbtcw32->lpcs->lpszName = (LPCSTR)lpcs16->lpszName;
if (HIWORD(lpcs16->lpszClass))
lpcbtcw32->lpcs->lpszClass =
(bA) ? PTR_SEG_TO_LIN(lpcs16->lpszClass)
: HEAP_strdupAtoW( SystemHeap, 0,
PTR_SEG_TO_LIN(lpcs16->lpszClass) );
else
lpcbtcw32->lpcs->lpszClass = (LPCSTR)lpcs16->lpszClass;
lpcbtcw32->hwndInsertAfter = lpcbtcw16->hwndInsertAfter;
*plParam = (LPARAM)lpcbtcw32;
break;
}
case HCBT_ACTIVATE:
{
LPCBTACTIVATESTRUCT16 lpcas16 = PTR_SEG_TO_LIN(*plParam);
LPCBTACTIVATESTRUCT lpcas32 = HeapAlloc( SystemHeap, 0,
sizeof(*lpcas32) );
lpcas32->fMouse = lpcas16->fMouse;
lpcas32->hWndActive = lpcas16->hWndActive;
*plParam = (LPARAM)lpcas32;
break;
}
case HCBT_CLICKSKIPPED:
{
LPMOUSEHOOKSTRUCT16 lpms16 = PTR_SEG_TO_LIN(*plParam);
LPMOUSEHOOKSTRUCT lpms32 = HeapAlloc( SystemHeap, 0,
sizeof(*lpms32) );
CONV_POINT16TO32( &lpms16->pt, &lpms32->pt );
/* wHitTestCode may be negative, so convince compiler to do
correct sign extension. Yay. :| */
lpms32->wHitTestCode = (INT)((INT16)lpms16->wHitTestCode);
lpms32->dwExtraInfo = lpms16->dwExtraInfo;
lpms32->hwnd = lpms16->hwnd;
*plParam = (LPARAM)lpms32;
break;
}
case HCBT_MOVESIZE:
{
LPRECT16 lprect16 = PTR_SEG_TO_LIN(*plParam);
LPRECT lprect32 = HeapAlloc( SystemHeap, 0,
sizeof(*lprect32) );
CONV_RECT16TO32( lprect16, lprect32 );
*plParam = (LPARAM)lprect32;
break;
}
}
break;
case WH_MOUSE:
{
LPMOUSEHOOKSTRUCT16 lpms16 = PTR_SEG_TO_LIN(*plParam);
LPMOUSEHOOKSTRUCT lpms32 = HeapAlloc( SystemHeap, 0,
sizeof(*lpms32) );
CONV_POINT16TO32( &lpms16->pt, &lpms32->pt );
/* wHitTestCode may be negative, so convince compiler to do
correct sign extension. Yay. :| */
lpms32->wHitTestCode = (INT)((INT16)lpms16->wHitTestCode);
lpms32->dwExtraInfo = lpms16->dwExtraInfo;
lpms32->hwnd = lpms16->hwnd;
*plParam = (LPARAM)lpms32;
break;
}
case WH_DEBUG:
{
LPDEBUGHOOKINFO16 lpdh16 = PTR_SEG_TO_LIN(*plParam);
LPDEBUGHOOKINFO lpdh32 = HeapAlloc( SystemHeap, 0,
sizeof(*lpdh32) );
lpdh32->idThread = 0; /* FIXME */
lpdh32->idThreadInstaller = 0; /* FIXME */
lpdh32->lParam = lpdh16->lParam; /* FIXME Check for sign ext */
lpdh32->wParam = lpdh16->wParam;
lpdh32->code = lpdh16->code;
/* do sign extension if it was WH_MSGFILTER */
if (*pwParam == 0xffff) *pwParam = WH_MSGFILTER;
*plParam = (LPARAM)lpdh32;
break;
}
case WH_SHELL:
case WH_KEYBOARD:
break;
case WH_HARDWARE:
case WH_FOREGROUNDIDLE:
case WH_CALLWNDPROCRET:
FIXME(hook, "\t[%i] 16to32 translation unimplemented\n", id);
}
}
/***********************************************************************
* HOOK_Map16To32A
*/
static void HOOK_Map16To32A(INT id, INT code, WPARAM *pwParam,
LPARAM *plParam)
{
HOOK_Map16To32Common( id, code, pwParam, plParam, TRUE );
}
/***********************************************************************
* HOOK_Map16To32W
*/
static void HOOK_Map16To32W(INT id, INT code, WPARAM *pwParam,
LPARAM *plParam)
{
HOOK_Map16To32Common( id, code, pwParam, plParam, FALSE );
}
/***********************************************************************
* HOOK_UnMap16To32Common
*/
static void HOOK_UnMap16To32Common(INT id, INT code, WPARAM wParamOrig,
LPARAM lParamOrig, WPARAM wParam,
LPARAM lParam, BOOL bA)
{
switch (id)
{
case WH_MSGFILTER:
case WH_SYSMSGFILTER:
case WH_JOURNALRECORD:
case WH_JOURNALPLAYBACK:
HeapFree( SystemHeap, 0, (LPVOID)lParam );
break;
case WH_CALLWNDPROC:
{
LPCWPSTRUCT lpcwp32 = (LPCWPSTRUCT)lParam;
if (bA) WINPROC_UnmapMsg16To32A( lpcwp32->hwnd,lpcwp32->message, lpcwp32->wParam,
lpcwp32->lParam, 0 );
else WINPROC_UnmapMsg16To32W( lpcwp32->hwnd,lpcwp32->message, lpcwp32->wParam,
lpcwp32->lParam, 0 );
HeapFree( SystemHeap, 0, lpcwp32 );
break;
}
case WH_GETMESSAGE:
{
LPMSG16 lpmsg16 = PTR_SEG_TO_LIN(lParamOrig);
STRUCT32_MSG32to16( (LPMSG)lParam, lpmsg16 );
HeapFree( SystemHeap, 0, (LPVOID)lParam );
break;
}
case WH_MOUSE:
case WH_DEBUG:
HeapFree( SystemHeap, 0, (LPVOID)lParam );
break;
case WH_CBT:
switch (code)
{
case HCBT_CREATEWND:
{
LPCBT_CREATEWNDA lpcbtcw32 = (LPCBT_CREATEWNDA)lParam;
LPCBT_CREATEWND16 lpcbtcw16 = PTR_SEG_TO_LIN(lParamOrig);
if( !bA )
{
if (HIWORD(lpcbtcw32->lpcs->lpszName))
HeapFree( SystemHeap, 0, (LPWSTR)lpcbtcw32->lpcs->lpszName );
if (HIWORD(lpcbtcw32->lpcs->lpszClass))
HeapFree( SystemHeap, 0, (LPWSTR)lpcbtcw32->lpcs->lpszClass );
}
lpcbtcw16->hwndInsertAfter = lpcbtcw32->hwndInsertAfter;
HeapFree( SystemHeap, 0, lpcbtcw32->lpcs );
} /* fall through */
case HCBT_ACTIVATE:
case HCBT_CLICKSKIPPED:
case HCBT_MOVESIZE:
HeapFree( SystemHeap, 0, (LPVOID)lParam);
break;
}
break;
case WH_SHELL:
case WH_KEYBOARD:
break;
case WH_HARDWARE:
case WH_FOREGROUNDIDLE:
case WH_CALLWNDPROCRET:
FIXME(hook, "\t[%i] skipping unmap\n", id);
break;
}
}
/***********************************************************************
* HOOK_UnMap16To32A
*/
static void HOOK_UnMap16To32A(INT id, INT code, WPARAM wParamOrig,
LPARAM lParamOrig, WPARAM wParam,
LPARAM lParam)
{
HOOK_UnMap16To32Common( id, code, wParamOrig, lParamOrig, wParam,
lParam, TRUE );
}
/***********************************************************************
* HOOK_UnMap16To32W
*/
static void HOOK_UnMap16To32W(INT id, INT code, WPARAM wParamOrig,
LPARAM lParamOrig, WPARAM wParam,
LPARAM lParam)
{
HOOK_UnMap16To32Common( id, code, wParamOrig, lParamOrig, wParam,
lParam, FALSE );
}
/***********************************************************************
* HOOK_Map32To16Common
*/
static void HOOK_Map32To16Common(INT id, INT code, WPARAM *pwParam,
LPARAM *plParam, BOOL bA)
{
switch (id)
{
case WH_MSGFILTER:
case WH_SYSMSGFILTER:
case WH_GETMESSAGE:
case WH_JOURNALRECORD:
{
LPMSG lpmsg32 = (LPMSG)*plParam;
LPMSG16 lpmsg16 = SEGPTR_NEW( MSG16 );
STRUCT32_MSG32to16( lpmsg32, lpmsg16 );
*plParam = (LPARAM)SEGPTR_GET( lpmsg16 );
break;
}
case WH_JOURNALPLAYBACK:
{
LPEVENTMSG lpem32 = (LPEVENTMSG)*plParam;
LPEVENTMSG16 lpem16 = SEGPTR_NEW( EVENTMSG16 );
lpem16->message = lpem32->message;
lpem16->paramL = lpem32->paramL;
lpem16->paramH = lpem32->paramH;
lpem16->time = lpem32->time;
*plParam = (LPARAM)SEGPTR_GET( lpem16 );
break;
}
case WH_CALLWNDPROC:
{
LPCWPSTRUCT lpcwp32 = (LPCWPSTRUCT)*plParam;
LPCWPSTRUCT16 lpcwp16 = SEGPTR_NEW( CWPSTRUCT16 );
lpcwp16->hwnd = lpcwp32->hwnd;
lpcwp16->lParam = lpcwp32->lParam;
if (bA) WINPROC_MapMsg32ATo16( lpcwp32->hwnd, lpcwp32->message,
lpcwp32->wParam, &lpcwp16->message,
&lpcwp16->wParam, &lpcwp16->lParam );
else WINPROC_MapMsg32WTo16( lpcwp32->hwnd, lpcwp32->message,
lpcwp32->wParam, &lpcwp16->message,
&lpcwp16->wParam, &lpcwp16->lParam );
*plParam = (LPARAM)SEGPTR_GET( lpcwp16 );
break;
}
case WH_CBT:
switch (code)
{
case HCBT_ACTIVATE:
{
LPCBTACTIVATESTRUCT lpcas32 = (LPCBTACTIVATESTRUCT)*plParam;
LPCBTACTIVATESTRUCT16 lpcas16 =SEGPTR_NEW( CBTACTIVATESTRUCT16 );
lpcas16->fMouse = lpcas32->fMouse;
lpcas16->hWndActive = lpcas32->hWndActive;
*plParam = (LPARAM)SEGPTR_GET( lpcas16 );
break;
}
case HCBT_CLICKSKIPPED:
{
LPMOUSEHOOKSTRUCT lpms32 = (LPMOUSEHOOKSTRUCT)*plParam;
LPMOUSEHOOKSTRUCT16 lpms16 = SEGPTR_NEW( MOUSEHOOKSTRUCT16 );
CONV_POINT32TO16( &lpms32->pt, &lpms16->pt );
lpms16->hwnd = lpms32->hwnd;
lpms16->wHitTestCode = lpms32->wHitTestCode;
lpms16->dwExtraInfo = lpms32->dwExtraInfo;
*plParam = (LPARAM)SEGPTR_GET( lpms16 );
break;
}
case HCBT_MOVESIZE:
{
LPRECT lprect32 = (LPRECT)*plParam;
LPRECT16 lprect16 = SEGPTR_NEW( RECT16 );
CONV_RECT32TO16( lprect32, lprect16 );
*plParam = (LPARAM)SEGPTR_GET( lprect16 );
break;
}
}
break;
case WH_MOUSE:
{
LPMOUSEHOOKSTRUCT lpms32 = (LPMOUSEHOOKSTRUCT)*plParam;
LPMOUSEHOOKSTRUCT16 lpms16 = SEGPTR_NEW( MOUSEHOOKSTRUCT16 );
CONV_POINT32TO16( &lpms32->pt, &lpms16->pt );
lpms16->hwnd = lpms32->hwnd;
lpms16->wHitTestCode = lpms32->wHitTestCode;
lpms16->dwExtraInfo = lpms32->dwExtraInfo;
*plParam = (LPARAM)SEGPTR_GET( lpms16 );
break;
}
case WH_DEBUG:
{
LPDEBUGHOOKINFO lpdh32 = (LPDEBUGHOOKINFO)*plParam;
LPDEBUGHOOKINFO16 lpdh16 = SEGPTR_NEW( DEBUGHOOKINFO16 );
lpdh16->hModuleHook = 0; /* FIXME */
lpdh16->reserved = 0;
lpdh16->lParam = lpdh32->lParam;
lpdh16->wParam = lpdh32->wParam;
lpdh16->code = lpdh32->code;
*plParam = (LPARAM)SEGPTR_GET( lpdh16 );
break;
}
case WH_SHELL:
case WH_KEYBOARD:
break;
case WH_HARDWARE:
case WH_FOREGROUNDIDLE:
case WH_CALLWNDPROCRET:
FIXME(hook,"\t[%i] 32to16 translation unimplemented\n", id);
}
}
/***********************************************************************
* HOOK_Map32ATo16
*/
static void HOOK_Map32ATo16(INT id, INT code, WPARAM *pwParam,
LPARAM *plParam)
{
if (id == WH_CBT && code == HCBT_CREATEWND)
{
LPCBT_CREATEWNDA lpcbtcw32 = (LPCBT_CREATEWNDA)*plParam;
LPCBT_CREATEWND16 lpcbtcw16 = SEGPTR_NEW( CBT_CREATEWND16 );
LPCREATESTRUCT16 lpcs16 = SEGPTR_NEW( CREATESTRUCT16 );
lpcbtcw16->lpcs = (LPCREATESTRUCT16)SEGPTR_GET( lpcs16 );
STRUCT32_CREATESTRUCT32Ato16( lpcbtcw32->lpcs, lpcs16 );
if (HIWORD(lpcbtcw32->lpcs->lpszName))
lpcs16->lpszName =
SEGPTR_GET( SEGPTR_STRDUP( lpcbtcw32->lpcs->lpszName ) );
else
lpcs16->lpszName = (SEGPTR)lpcbtcw32->lpcs->lpszName;
if (HIWORD(lpcbtcw32->lpcs->lpszClass))
lpcs16->lpszClass =
SEGPTR_GET( SEGPTR_STRDUP( lpcbtcw32->lpcs->lpszClass ) );
else
lpcs16->lpszClass = (SEGPTR)lpcbtcw32->lpcs->lpszClass;
lpcbtcw16->hwndInsertAfter = lpcbtcw32->hwndInsertAfter;
*plParam = (LPARAM)SEGPTR_GET( lpcbtcw16 );
}
else HOOK_Map32To16Common(id, code, pwParam, plParam, TRUE);
}
/***********************************************************************
* HOOK_Map32WTo16
*/
static void HOOK_Map32WTo16(INT id, INT code, WPARAM *pwParam,
LPARAM *plParam)
{
if (id == WH_CBT && code == HCBT_CREATEWND)
{
LPSTR name, cls;
LPCBT_CREATEWNDW lpcbtcw32 = (LPCBT_CREATEWNDW)*plParam;
LPCBT_CREATEWND16 lpcbtcw16 = SEGPTR_NEW( CBT_CREATEWND16 );
LPCREATESTRUCT16 lpcs16 = SEGPTR_NEW( CREATESTRUCT16 );
lpcbtcw16->lpcs = (LPCREATESTRUCT16)SEGPTR_GET( lpcs16 );
STRUCT32_CREATESTRUCT32Ato16( (LPCREATESTRUCTA)lpcbtcw32->lpcs,
lpcs16 );
name = SEGPTR_STRDUP_WtoA( lpcbtcw32->lpcs->lpszName );
cls = SEGPTR_STRDUP_WtoA( lpcbtcw32->lpcs->lpszClass );
lpcs16->lpszName = SEGPTR_GET( name );
lpcs16->lpszClass = SEGPTR_GET( cls );
lpcbtcw16->hwndInsertAfter = lpcbtcw32->hwndInsertAfter;
*plParam = (LPARAM)SEGPTR_GET( lpcbtcw16 );
}
else HOOK_Map32To16Common(id, code, pwParam, plParam, FALSE);
}
/***********************************************************************
* HOOK_UnMap32To16Common
*/
static void HOOK_UnMap32To16Common(INT id, INT code, WPARAM wParamOrig,
LPARAM lParamOrig, WPARAM wParam,
LPARAM lParam, BOOL bA)
{
switch (id)
{
case WH_MSGFILTER:
case WH_SYSMSGFILTER:
case WH_JOURNALRECORD:
case WH_JOURNALPLAYBACK:
case WH_MOUSE:
case WH_DEBUG:
SEGPTR_FREE( PTR_SEG_TO_LIN(lParam) );
break;
case WH_CALLWNDPROC:
{
LPCWPSTRUCT16 lpcwp16 = (LPCWPSTRUCT16)PTR_SEG_TO_LIN(lParam);
LPCWPSTRUCT lpcwp32 = (LPCWPSTRUCT)lParamOrig;
MSGPARAM16 mp16 = { lpcwp16->wParam, lpcwp16->lParam, 0 };
if (bA) WINPROC_UnmapMsg32ATo16( lpcwp32->hwnd,lpcwp32->message, lpcwp32->wParam,
lpcwp32->lParam, &mp16 );
else WINPROC_UnmapMsg32WTo16( lpcwp32->hwnd,lpcwp32->message, lpcwp32->wParam,
lpcwp32->lParam, &mp16 );
SEGPTR_FREE( PTR_SEG_TO_LIN(lParam) );
break;
}
case WH_GETMESSAGE:
{
LPMSG lpmsg32 = (LPMSG)lParamOrig;
STRUCT32_MSG16to32( (LPMSG16)PTR_SEG_TO_LIN(lParam), lpmsg32 );
SEGPTR_FREE( PTR_SEG_TO_LIN(lParam) );
break;
}
case WH_CBT:
switch (code)
{
case HCBT_CREATEWND:
{
LPCBT_CREATEWNDA lpcbtcw32 = (LPCBT_CREATEWNDA)(lParamOrig);
LPCBT_CREATEWND16 lpcbtcw16 = PTR_SEG_TO_LIN(lParam);
LPCREATESTRUCT16 lpcs16 = PTR_SEG_TO_LIN(lpcbtcw16->lpcs);
if (HIWORD(lpcs16->lpszName))
SEGPTR_FREE( PTR_SEG_TO_LIN(lpcs16->lpszName) );
if (HIWORD(lpcs16->lpszClass))
SEGPTR_FREE( PTR_SEG_TO_LIN(lpcs16->lpszClass) );
lpcbtcw32->hwndInsertAfter = lpcbtcw16->hwndInsertAfter;
SEGPTR_FREE( lpcs16 );
} /* fall through */
case HCBT_ACTIVATE:
case HCBT_CLICKSKIPPED:
case HCBT_MOVESIZE:
SEGPTR_FREE( PTR_SEG_TO_LIN(lParam) );
break;
}
break;
case WH_SHELL:
case WH_KEYBOARD:
break;
case WH_HARDWARE:
case WH_FOREGROUNDIDLE:
case WH_CALLWNDPROCRET:
FIXME(hook, "\t[%i] skipping unmap\n", id);
}
}
/***********************************************************************
* HOOK_UnMap32ATo16
*/
static void HOOK_UnMap32ATo16(INT id, INT code, WPARAM wParamOrig,
LPARAM lParamOrig, WPARAM wParam,
LPARAM lParam)
{
HOOK_UnMap32To16Common( id, code, wParamOrig, lParamOrig, wParam,
lParam, TRUE );
}
/***********************************************************************
* HOOK_UnMap32WTo16
*/
static void HOOK_UnMap32WTo16(INT id, INT code, WPARAM wParamOrig,
LPARAM lParamOrig, WPARAM wParam,
LPARAM lParam)
{
HOOK_UnMap32To16Common( id, code, wParamOrig, lParamOrig, wParam,
lParam, FALSE );
}
/***********************************************************************
* HOOK_Map32ATo32W
*/
static void HOOK_Map32ATo32W(INT id, INT code, WPARAM *pwParam,
LPARAM *plParam)
{
if (id == WH_CBT && code == HCBT_CREATEWND)
{
LPCBT_CREATEWNDA lpcbtcwA = (LPCBT_CREATEWNDA)*plParam;
LPCBT_CREATEWNDW lpcbtcwW = HeapAlloc( SystemHeap, 0,
sizeof(*lpcbtcwW) );
lpcbtcwW->lpcs = HeapAlloc( SystemHeap, 0, sizeof(*lpcbtcwW->lpcs) );
lpcbtcwW->hwndInsertAfter = lpcbtcwA->hwndInsertAfter;
*lpcbtcwW->lpcs = *(LPCREATESTRUCTW)lpcbtcwA->lpcs;
if (HIWORD(lpcbtcwA->lpcs->lpszName))
{
lpcbtcwW->lpcs->lpszName = HEAP_strdupAtoW( SystemHeap, 0,
lpcbtcwA->lpcs->lpszName );
}
else
lpcbtcwW->lpcs->lpszName = (LPWSTR)lpcbtcwA->lpcs->lpszName;
if (HIWORD(lpcbtcwA->lpcs->lpszClass))
{
lpcbtcwW->lpcs->lpszClass = HEAP_strdupAtoW( SystemHeap, 0,
lpcbtcwA->lpcs->lpszClass );
}
else
lpcbtcwW->lpcs->lpszClass = (LPCWSTR)lpcbtcwA->lpcs->lpszClass;
*plParam = (LPARAM)lpcbtcwW;
}
return;
}
/***********************************************************************
* HOOK_UnMap32ATo32W
*/
static void HOOK_UnMap32ATo32W(INT id, INT code, WPARAM wParamOrig,
LPARAM lParamOrig, WPARAM wParam,
LPARAM lParam)
{
if (id == WH_CBT && code == HCBT_CREATEWND)
{
LPCBT_CREATEWNDW lpcbtcwW = (LPCBT_CREATEWNDW)lParam;
if (HIWORD(lpcbtcwW->lpcs->lpszName))
HeapFree( SystemHeap, 0, (LPWSTR)lpcbtcwW->lpcs->lpszName );
if (HIWORD(lpcbtcwW->lpcs->lpszClass))
HeapFree( SystemHeap, 0, (LPWSTR)lpcbtcwW->lpcs->lpszClass );
HeapFree( SystemHeap, 0, lpcbtcwW->lpcs );
HeapFree( SystemHeap, 0, lpcbtcwW );
}
return;
}
/***********************************************************************
* HOOK_Map32WTo32A
*/
static void HOOK_Map32WTo32A(INT id, INT code, WPARAM *pwParam,
LPARAM *plParam)
{
if (id == WH_CBT && code == HCBT_CREATEWND)
{
LPCBT_CREATEWNDW lpcbtcwW = (LPCBT_CREATEWNDW)*plParam;
LPCBT_CREATEWNDA lpcbtcwA = HeapAlloc( SystemHeap, 0,
sizeof(*lpcbtcwA) );
lpcbtcwA->lpcs = HeapAlloc( SystemHeap, 0, sizeof(*lpcbtcwA->lpcs) );
lpcbtcwA->hwndInsertAfter = lpcbtcwW->hwndInsertAfter;
*lpcbtcwA->lpcs = *(LPCREATESTRUCTA)lpcbtcwW->lpcs;
if (HIWORD(lpcbtcwW->lpcs->lpszName))
lpcbtcwA->lpcs->lpszName = HEAP_strdupWtoA( SystemHeap, 0,
lpcbtcwW->lpcs->lpszName );
else
lpcbtcwA->lpcs->lpszName = (LPSTR)lpcbtcwW->lpcs->lpszName;
if (HIWORD(lpcbtcwW->lpcs->lpszClass))
lpcbtcwA->lpcs->lpszClass = HEAP_strdupWtoA( SystemHeap, 0,
lpcbtcwW->lpcs->lpszClass );
else
lpcbtcwA->lpcs->lpszClass = (LPSTR)lpcbtcwW->lpcs->lpszClass;
*plParam = (LPARAM)lpcbtcwA;
}
return;
}
/***********************************************************************
* HOOK_UnMap32WTo32A
*/
static void HOOK_UnMap32WTo32A(INT id, INT code, WPARAM wParamOrig,
LPARAM lParamOrig, WPARAM wParam,
LPARAM lParam)
{
if (id == WH_CBT && code == HCBT_CREATEWND)
{
LPCBT_CREATEWNDA lpcbtcwA = (LPCBT_CREATEWNDA)lParam;
if (HIWORD(lpcbtcwA->lpcs->lpszName))
HeapFree( SystemHeap, 0, (LPSTR)lpcbtcwA->lpcs->lpszName );
if (HIWORD(lpcbtcwA->lpcs->lpszClass))
HeapFree( SystemHeap, 0, (LPSTR)lpcbtcwA->lpcs->lpszClass );
HeapFree( SystemHeap, 0, lpcbtcwA->lpcs );
HeapFree( SystemHeap, 0, lpcbtcwA );
}
return;
}
/***********************************************************************
* Map Function Tables
*/
static const HOOK_MapFunc HOOK_MapFuncs[3][3] =
{
{ NULL, HOOK_Map16To32A, HOOK_Map16To32W },
{ HOOK_Map32ATo16, NULL, HOOK_Map32ATo32W },
{ HOOK_Map32WTo16, HOOK_Map32WTo32A, NULL }
};
static const HOOK_UnMapFunc HOOK_UnMapFuncs[3][3] =
{
{ NULL, HOOK_UnMap16To32A, HOOK_UnMap16To32W },
{ HOOK_UnMap32ATo16, NULL, HOOK_UnMap32ATo32W },
{ HOOK_UnMap32WTo16, HOOK_UnMap32WTo32A, NULL }
};
/***********************************************************************
* Internal Functions
*/
/***********************************************************************
* HOOK_GetNextHook
*
* Get the next hook of a given hook.
*/
static HANDLE16 HOOK_GetNextHook( HANDLE16 hook )
{
HOOKDATA *data = (HOOKDATA *)USER_HEAP_LIN_ADDR( hook );
if (!data || !hook) return 0;
if (data->next) return data->next;
if (!data->ownerQueue) return 0; /* Already system hook */
/* Now start enumerating the system hooks */
return HOOK_systemHooks[data->id - WH_MINHOOK];
}
/***********************************************************************
* HOOK_GetHook
*
* Get the first hook for a given type.
*/
static HANDLE16 HOOK_GetHook( INT16 id, HQUEUE16 hQueue )
{
MESSAGEQUEUE *queue;
HANDLE16 hook = 0;
if ((queue = (MESSAGEQUEUE *)QUEUE_Lock( hQueue )) != NULL)
hook = queue->hooks[id - WH_MINHOOK];
if (!hook) hook = HOOK_systemHooks[id - WH_MINHOOK];
QUEUE_Unlock( queue );
return hook;
}
/***********************************************************************
* HOOK_SetHook
*
* Install a given hook.
*/
static HHOOK HOOK_SetHook( INT16 id, LPVOID proc, INT type,
HMODULE16 hModule, DWORD dwThreadId )
{
HOOKDATA *data;
HANDLE16 handle;
HQUEUE16 hQueue = 0;
if ((id < WH_MINHOOK) || (id > WH_MAXHOOK)) return 0;
TRACE(hook, "Setting hook %d: %08x %04x %08lx\n",
id, (UINT)proc, hModule, dwThreadId );
/* Create task queue if none present */
GetFastQueue16();
if (id == WH_JOURNALPLAYBACK) EnableHardwareInput16(FALSE);
if (dwThreadId) /* Task-specific hook */
{
if ((id == WH_JOURNALRECORD) || (id == WH_JOURNALPLAYBACK) ||
(id == WH_SYSMSGFILTER)) return 0; /* System-only hooks */
if (!(hQueue = GetThreadQueue16( dwThreadId )))
return 0;
}
/* Create the hook structure */
if (!(handle = USER_HEAP_ALLOC( sizeof(HOOKDATA) ))) return 0;
data = (HOOKDATA *) USER_HEAP_LIN_ADDR( handle );
data->proc = proc;
data->id = id;
data->ownerQueue = hQueue;
data->ownerModule = hModule;
data->flags = type;
/* Insert it in the correct linked list */
if (hQueue)
{
MESSAGEQUEUE *queue = (MESSAGEQUEUE *)QUEUE_Lock( hQueue );
data->next = queue->hooks[id - WH_MINHOOK];
queue->hooks[id - WH_MINHOOK] = handle;
QUEUE_Unlock( queue );
}
else
{
data->next = HOOK_systemHooks[id - WH_MINHOOK];
HOOK_systemHooks[id - WH_MINHOOK] = handle;
}
TRACE(hook, "Setting hook %d: ret=%04x [next=%04x]\n",
id, handle, data->next );
return (HHOOK)( handle? MAKELONG( handle, HOOK_MAGIC ) : 0 );
}
/***********************************************************************
* HOOK_RemoveHook
*
* Remove a hook from the list.
*/
static BOOL HOOK_RemoveHook( HANDLE16 hook )
{
HOOKDATA *data;
HANDLE16 *prevHook;
TRACE(hook, "Removing hook %04x\n", hook );
if (!(data = (HOOKDATA *)USER_HEAP_LIN_ADDR(hook))) return FALSE;
if (data->flags & HOOK_INUSE)
{
/* Mark it for deletion later on */
WARN(hook, "Hook still running, deletion delayed\n" );
data->proc = (HOOKPROC)0;
return TRUE;
}
if (data->id == WH_JOURNALPLAYBACK) EnableHardwareInput16(TRUE);
/* Remove it from the linked list */
if (data->ownerQueue)
{
MESSAGEQUEUE *queue = (MESSAGEQUEUE *)QUEUE_Lock( data->ownerQueue );
if (!queue) return FALSE;
prevHook = &queue->hooks[data->id - WH_MINHOOK];
QUEUE_Unlock( queue );
}
else prevHook = &HOOK_systemHooks[data->id - WH_MINHOOK];
while (*prevHook && *prevHook != hook)
prevHook = &((HOOKDATA *)USER_HEAP_LIN_ADDR(*prevHook))->next;
if (!*prevHook) return FALSE;
*prevHook = data->next;
USER_HEAP_FREE( hook );
return TRUE;
}
/***********************************************************************
* HOOK_FindValidHook
*/
static HANDLE16 HOOK_FindValidHook( HANDLE16 hook )
{
HOOKDATA *data;
for (;;)
{
if (!(data = (HOOKDATA *)USER_HEAP_LIN_ADDR(hook))) return 0;
if (data->proc) return hook;
hook = data->next;
}
}
/***********************************************************************
* HOOK_CallHook
*
* Call a hook procedure.
*/
static LRESULT HOOK_CallHook( HANDLE16 hook, INT fromtype, INT code,
WPARAM wParam, LPARAM lParam )
{
MESSAGEQUEUE *queue;
HANDLE16 prevHook;
HOOKDATA *data = (HOOKDATA *)USER_HEAP_LIN_ADDR(hook);
LRESULT ret;
WPARAM wParamOrig = wParam;
LPARAM lParamOrig = lParam;
HOOK_MapFunc MapFunc;
HOOK_UnMapFunc UnMapFunc;
MapFunc = HOOK_MapFuncs[fromtype][data->flags & HOOK_MAPTYPE];
UnMapFunc = HOOK_UnMapFuncs[fromtype][data->flags & HOOK_MAPTYPE];
if (MapFunc)
MapFunc( data->id, code, &wParam, &lParam );
/* Now call it */
if (!(queue = (MESSAGEQUEUE *)QUEUE_Lock( GetFastQueue16() ))) return 0;
prevHook = queue->hCurHook;
queue->hCurHook = hook;
data->flags |= HOOK_INUSE;
TRACE(hook, "Calling hook %04x: %d %08x %08lx\n",
hook, code, wParam, lParam );
ret = data->proc(code, wParam, lParam);
TRACE(hook, "Ret hook %04x = %08lx\n", hook, ret );
data->flags &= ~HOOK_INUSE;
queue->hCurHook = prevHook;
QUEUE_Unlock( queue );
if (UnMapFunc)
UnMapFunc( data->id, code, wParamOrig, lParamOrig, wParam, lParam );
if (!data->proc) HOOK_RemoveHook( hook );
return ret;
}
/***********************************************************************
* Exported Functions & APIs
*/
/***********************************************************************
* HOOK_GetProc16
*
* Don't call this unless you are the if1632/thunk.c.
*/
HOOKPROC16 HOOK_GetProc16( HHOOK hhook )
{
HOOKDATA *data;
if (HIWORD(hhook) != HOOK_MAGIC) return NULL;
if (!(data = (HOOKDATA *)USER_HEAP_LIN_ADDR( LOWORD(hhook) ))) return NULL;
if ((data->flags & HOOK_MAPTYPE) != HOOK_WIN16) return NULL;
return (HOOKPROC16)data->proc;
}
/***********************************************************************
* HOOK_IsHooked
*
* Replacement for calling HOOK_GetHook from other modules.
*/
BOOL HOOK_IsHooked( INT16 id )
{
/* Hmmm. Use GetThreadQueue(0) instead of GetFastQueue() here to
avoid queue being created if someone wants to merely check ... */
return HOOK_GetHook( id, GetThreadQueue16(0) ) != 0;
}
/***********************************************************************
* HOOK_CallHooks16
*
* Call a hook chain.
*/
LRESULT HOOK_CallHooks16( INT16 id, INT16 code, WPARAM16 wParam,
LPARAM lParam )
{
HANDLE16 hook;
if (!(hook = HOOK_GetHook( id, GetFastQueue16() ))) return 0;
if (!(hook = HOOK_FindValidHook(hook))) return 0;
return HOOK_CallHook( hook, HOOK_WIN16, code, wParam, lParam );
}
/***********************************************************************
* HOOK_CallHooks32A
*
* Call a hook chain.
*/
LRESULT HOOK_CallHooksA( INT id, INT code, WPARAM wParam,
LPARAM lParam )
{
HANDLE16 hook;
if (!(hook = HOOK_GetHook( id, GetFastQueue16() ))) return 0;
if (!(hook = HOOK_FindValidHook(hook))) return 0;
return HOOK_CallHook( hook, HOOK_WIN32A, code, wParam, lParam );
}
/***********************************************************************
* HOOK_CallHooks32W
*
* Call a hook chain.
*/
LRESULT HOOK_CallHooksW( INT id, INT code, WPARAM wParam,
LPARAM lParam )
{
HANDLE16 hook;
if (!(hook = HOOK_GetHook( id, GetFastQueue16() ))) return 0;
if (!(hook = HOOK_FindValidHook(hook))) return 0;
return HOOK_CallHook( hook, HOOK_WIN32W, code, wParam,
lParam );
}
/***********************************************************************
* HOOK_ResetQueueHooks
*/
void HOOK_ResetQueueHooks( HQUEUE16 hQueue )
{
MESSAGEQUEUE *queue;
if ((queue = (MESSAGEQUEUE *)QUEUE_Lock( hQueue )) != NULL)
{
HOOKDATA* data;
HHOOK hook;
int id;
for( id = WH_MINHOOK; id <= WH_MAXHOOK; id++ )
{
hook = queue->hooks[id - WH_MINHOOK];
while( hook )
{
if( (data = (HOOKDATA *)USER_HEAP_LIN_ADDR(hook)) )
{
data->ownerQueue = hQueue;
hook = data->next;
} else break;
}
}
QUEUE_Unlock( queue );
}
}
/***********************************************************************
* HOOK_FreeModuleHooks
*/
void HOOK_FreeModuleHooks( HMODULE16 hModule )
{
/* remove all system hooks registered by this module */
HOOKDATA* hptr;
HHOOK hook, next;
int id;
for( id = WH_MINHOOK; id <= WH_MAXHOOK; id++ )
{
hook = HOOK_systemHooks[id - WH_MINHOOK];
while( hook )
if( (hptr = (HOOKDATA *)USER_HEAP_LIN_ADDR(hook)) )
{
next = hptr->next;
if( hptr->ownerModule == hModule )
{
hptr->flags &= HOOK_MAPTYPE;
HOOK_RemoveHook(hook);
}
hook = next;
}
else hook = 0;
}
}
/***********************************************************************
* HOOK_FreeQueueHooks
*/
void HOOK_FreeQueueHooks( HQUEUE16 hQueue )
{
/* remove all hooks registered by this queue */
HOOKDATA* hptr = NULL;
HHOOK hook, next;
int id;
for( id = WH_MINHOOK; id <= WH_MAXHOOK; id++ )
{
hook = HOOK_GetHook( id, hQueue );
while( hook )
{
next = HOOK_GetNextHook(hook);
hptr = (HOOKDATA *)USER_HEAP_LIN_ADDR(hook);
if( hptr && hptr->ownerQueue == hQueue )
{
hptr->flags &= HOOK_MAPTYPE;
HOOK_RemoveHook(hook);
}
hook = next;
}
}
}
/***********************************************************************
* SetWindowsHook16 (USER.121)
*/
FARPROC16 WINAPI SetWindowsHook16( INT16 id, HOOKPROC16 proc )
{
HINSTANCE16 hInst = FarGetOwner16( HIWORD(proc) );
/* WH_MSGFILTER is the only task-specific hook for SetWindowsHook() */
HTASK16 hTask = (id == WH_MSGFILTER) ? GetCurrentTask() : 0;
return (FARPROC16)SetWindowsHookEx16( id, proc, hInst, hTask );
}
/***********************************************************************
* SetWindowsHook32A (USER32.525)
*/
HHOOK WINAPI SetWindowsHookA( INT id, HOOKPROC proc )
{
return SetWindowsHookExA( id, proc, 0, GetCurrentThreadId() );
}
/***********************************************************************
* SetWindowsHook32W (USER32.528)
*/
HHOOK WINAPI SetWindowsHookW( INT id, HOOKPROC proc )
{
return SetWindowsHookExW( id, proc, 0, GetCurrentThreadId() );
}
/***********************************************************************
* SetWindowsHookEx16 (USER.291)
*/
HHOOK WINAPI SetWindowsHookEx16( INT16 id, HOOKPROC16 proc, HINSTANCE16 hInst,
HTASK16 hTask )
{
if (id == WH_DEBUG)
{
FIXME(hook, "WH_DEBUG is broken in 16-bit Windows.\n");
return 0;
}
return HOOK_SetHook( id, proc, HOOK_WIN16, GetExePtr(hInst), (DWORD)hTask );
}
/***********************************************************************
* SetWindowsHookEx32A (USER32.526)
*/
HHOOK WINAPI SetWindowsHookExA( INT id, HOOKPROC proc, HINSTANCE hInst,
DWORD dwThreadId )
{
return HOOK_SetHook( id, proc, HOOK_WIN32A, MapHModuleLS(hInst), dwThreadId );
}
/***********************************************************************
* SetWindowsHookEx32W (USER32.527)
*/
HHOOK WINAPI SetWindowsHookExW( INT id, HOOKPROC proc, HINSTANCE hInst,
DWORD dwThreadId )
{
return HOOK_SetHook( id, proc, HOOK_WIN32W, MapHModuleLS(hInst), dwThreadId );
}
/***********************************************************************
* UnhookWindowsHook16 (USER.234)
*/
BOOL16 WINAPI UnhookWindowsHook16( INT16 id, HOOKPROC16 proc )
{
return UnhookWindowsHook( id, (HOOKPROC)proc );
}
/***********************************************************************
* UnhookWindowsHook32 (USER32.557)
*/
BOOL WINAPI UnhookWindowsHook( INT id, HOOKPROC proc )
{
HANDLE16 hook = HOOK_GetHook( id, GetFastQueue16() );
TRACE(hook, "%d %08lx\n", id, (DWORD)proc );
while (hook)
{
HOOKDATA *data = (HOOKDATA *)USER_HEAP_LIN_ADDR(hook);
if (data->proc == proc) break;
hook = HOOK_GetNextHook( hook );
}
if (!hook) return FALSE;
return HOOK_RemoveHook( hook );
}
/***********************************************************************
* UnhookWindowHookEx16 (USER.292)
*/
BOOL16 WINAPI UnhookWindowsHookEx16( HHOOK hhook )
{
return UnhookWindowsHookEx( hhook );
}
/***********************************************************************
* UnhookWindowHookEx32 (USER32.558)
*/
BOOL WINAPI UnhookWindowsHookEx( HHOOK hhook )
{
if (HIWORD(hhook) != HOOK_MAGIC) return FALSE; /* Not a new format hook */
return HOOK_RemoveHook( LOWORD(hhook) );
}
/***********************************************************************
* CallNextHookEx16 (USER.293)
*
* I wouldn't have separated this into 16 and 32 bit versions, but I
* need a way to figure out if I need to do a mapping or not.
*/
LRESULT WINAPI CallNextHookEx16( HHOOK hhook, INT16 code, WPARAM16 wParam,
LPARAM lParam )
{
HANDLE16 next;
if (HIWORD(hhook) != HOOK_MAGIC) return 0; /* Not a new format hook */
if (!(next = HOOK_GetNextHook( LOWORD(hhook) ))) return 0;
return HOOK_CallHook( next, HOOK_WIN16, code, wParam, lParam );
}
/***********************************************************************
* CallNextHookEx32 (USER32.17)
*
* There aren't ANSI and UNICODE versions of this.
*/
LRESULT WINAPI CallNextHookEx( HHOOK hhook, INT code, WPARAM wParam,
LPARAM lParam )
{
HANDLE16 next;
INT fromtype; /* figure out Ansi/Unicode */
HOOKDATA *oldhook;
if (HIWORD(hhook) != HOOK_MAGIC) return 0; /* Not a new format hook */
if (!(next = HOOK_GetNextHook( LOWORD(hhook) ))) return 0;
oldhook = (HOOKDATA *)USER_HEAP_LIN_ADDR( LOWORD(hhook) );
fromtype = oldhook->flags & HOOK_MAPTYPE;
if (fromtype == HOOK_WIN16)
ERR(hook, "called from 16bit hook!\n");
return HOOK_CallHook( next, fromtype, code, wParam, lParam );
}
/***********************************************************************
* DefHookProc16 (USER.235)
*/
LRESULT WINAPI DefHookProc16( INT16 code, WPARAM16 wParam, LPARAM lParam,
HHOOK *hhook )
{
/* Note: the *hhook parameter is never used, since we rely on the
* current hook value from the task queue to find the next hook. */
MESSAGEQUEUE *queue;
LRESULT ret;
if (!(queue = (MESSAGEQUEUE *)QUEUE_Lock( GetFastQueue16() ))) return 0;
ret = CallNextHookEx16( queue->hCurHook, code, wParam, lParam );
QUEUE_Unlock( queue );
return ret;
}
/***********************************************************************
* CallMsgFilter16 (USER.123)
*/
BOOL16 WINAPI CallMsgFilter16( SEGPTR msg, INT16 code )
{
if (GetSysModalWindow16()) return FALSE;
if (HOOK_CallHooks16( WH_SYSMSGFILTER, code, 0, (LPARAM)msg )) return TRUE;
return HOOK_CallHooks16( WH_MSGFILTER, code, 0, (LPARAM)msg );
}
/***********************************************************************
* WIN16_CallMsgFilter32 (USER.823)
*/
BOOL16 WINAPI CallMsgFilter32_16( SEGPTR msg16_32, INT16 code, BOOL16 wHaveParamHigh )
{
MSG32_16 *lpmsg16_32 = (MSG32_16 *)PTR_SEG_TO_LIN(msg16_32);
if (wHaveParamHigh == FALSE)
{
lpmsg16_32->wParamHigh = 0;
/* WARNING: msg16_32->msg has to be the first variable in the struct */
return CallMsgFilter16(msg16_32, code);
}
else
{
MSG msg32;
BOOL16 ret;
msg32.hwnd = lpmsg16_32->msg.hwnd;
msg32.message = lpmsg16_32->msg.message;
msg32.wParam =
MAKELONG(lpmsg16_32->msg.wParam, lpmsg16_32->wParamHigh);
msg32.lParam = lpmsg16_32->msg.lParam;
msg32.time = lpmsg16_32->msg.time;
msg32.pt.x = (INT)lpmsg16_32->msg.pt.x;
msg32.pt.y = (INT)lpmsg16_32->msg.pt.y;
ret = (BOOL16)CallMsgFilterA(&msg32, (INT)code);
lpmsg16_32->msg.hwnd = msg32.hwnd;
lpmsg16_32->msg.message = msg32.message;
lpmsg16_32->msg.wParam = LOWORD(msg32.wParam);
lpmsg16_32->msg.lParam = msg32.lParam;
lpmsg16_32->msg.time = msg32.time;
lpmsg16_32->msg.pt.x = (INT16)msg32.pt.x;
lpmsg16_32->msg.pt.y = (INT16)msg32.pt.y;
lpmsg16_32->wParamHigh = HIWORD(msg32.wParam);
return ret;
}
}
/***********************************************************************
* CallMsgFilter32A (USER32.15)
*/
/*
* FIXME: There are ANSI and UNICODE versions of this, plus an unspecified
* version, plus USER (the 16bit one) has a CallMsgFilter32 function.
*/
BOOL WINAPI CallMsgFilterA( LPMSG msg, INT code )
{
if (GetSysModalWindow16()) return FALSE; /* ??? */
if (HOOK_CallHooksA( WH_SYSMSGFILTER, code, 0, (LPARAM)msg ))
return TRUE;
return HOOK_CallHooksA( WH_MSGFILTER, code, 0, (LPARAM)msg );
}
/***********************************************************************
* CallMsgFilter32W (USER32.16)
*/
BOOL WINAPI CallMsgFilterW( LPMSG msg, INT code )
{
if (GetSysModalWindow16()) return FALSE; /* ??? */
if (HOOK_CallHooksW( WH_SYSMSGFILTER, code, 0, (LPARAM)msg ))
return TRUE;
return HOOK_CallHooksW( WH_MSGFILTER, code, 0, (LPARAM)msg );
}
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