| /* |
| * Windows hook functions |
| * |
| * Copyright 2002 Alexandre Julliard |
| * Copyright 2005 Dmitry Timoshkov |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| * |
| * NOTES: |
| * Status of the various hooks: |
| * WH_MSGFILTER OK |
| * WH_JOURNALRECORD Partially implemented |
| * WH_JOURNALPLAYBACK Partially implemented |
| * WH_KEYBOARD OK |
| * WH_GETMESSAGE OK (FIXME: A/W mapping?) |
| * WH_CALLWNDPROC OK (FIXME: A/W mapping?) |
| * WH_CBT |
| * HCBT_MOVESIZE OK |
| * HCBT_MINMAX OK |
| * HCBT_QS OK |
| * HCBT_CREATEWND OK |
| * HCBT_DESTROYWND OK |
| * HCBT_ACTIVATE OK |
| * HCBT_CLICKSKIPPED OK |
| * HCBT_KEYSKIPPED OK |
| * HCBT_SYSCOMMAND OK |
| * HCBT_SETFOCUS OK |
| * WH_SYSMSGFILTER OK |
| * WH_MOUSE OK |
| * WH_HARDWARE Not supported in Win32 |
| * WH_DEBUG Not implemented |
| * WH_SHELL |
| * HSHELL_WINDOWCREATED OK |
| * HSHELL_WINDOWDESTROYED OK |
| * HSHELL_ACTIVATESHELLWINDOW Not implemented |
| * HSHELL_WINDOWACTIVATED Not implemented |
| * HSHELL_GETMINRECT Not implemented |
| * HSHELL_REDRAW Not implemented |
| * HSHELL_TASKMAN Not implemented |
| * HSHELL_LANGUAGE Not implemented |
| * HSHELL_SYSMENU Not implemented |
| * HSHELL_ENDTASK Not implemented |
| * HSHELL_ACCESSIBILITYSTATE Not implemented |
| * HSHELL_APPCOMMAND Not implemented |
| * HSHELL_WINDOWREPLACED Not implemented |
| * HSHELL_WINDOWREPLACING Not implemented |
| * WH_FOREGROUNDIDLE Not implemented |
| * WH_CALLWNDPROCRET OK (FIXME: A/W mapping?) |
| * WH_KEYBOARD_LL Implemented but should use SendMessage instead |
| * WH_MOUSE_LL Implemented but should use SendMessage instead |
| */ |
| |
| #include "config.h" |
| #include "wine/port.h" |
| |
| #include <stdarg.h> |
| #include <assert.h> |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winuser.h" |
| #include "winerror.h" |
| #include "win.h" |
| #include "user_private.h" |
| #include "wine/server.h" |
| #include "wine/unicode.h" |
| #include "wine/debug.h" |
| #include "winternl.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(hook); |
| WINE_DECLARE_DEBUG_CHANNEL(relay); |
| |
| struct hook_info |
| { |
| INT id; |
| FARPROC proc; |
| void *handle; |
| DWORD pid, tid; |
| BOOL prev_unicode, next_unicode; |
| WCHAR module[MAX_PATH]; |
| }; |
| |
| #define WH_WINEVENT (WH_MAXHOOK+1) |
| |
| static const char * const hook_names[WH_WINEVENT - WH_MINHOOK + 1] = |
| { |
| "WH_MSGFILTER", |
| "WH_JOURNALRECORD", |
| "WH_JOURNALPLAYBACK", |
| "WH_KEYBOARD", |
| "WH_GETMESSAGE", |
| "WH_CALLWNDPROC", |
| "WH_CBT", |
| "WH_SYSMSGFILTER", |
| "WH_MOUSE", |
| "WH_HARDWARE", |
| "WH_DEBUG", |
| "WH_SHELL", |
| "WH_FOREGROUNDIDLE", |
| "WH_CALLWNDPROCRET", |
| "WH_KEYBOARD_LL", |
| "WH_MOUSE_LL", |
| "WH_WINEVENT" |
| }; |
| |
| |
| /*********************************************************************** |
| * get_ll_hook_timeout |
| * |
| */ |
| static UINT get_ll_hook_timeout(void) |
| { |
| /* FIXME: should retrieve LowLevelHooksTimeout in HKEY_CURRENT_USER\Control Panel\Desktop */ |
| return 2000; |
| } |
| |
| |
| /*********************************************************************** |
| * set_windows_hook |
| * |
| * Implementation of SetWindowsHookExA and SetWindowsHookExW. |
| */ |
| static HHOOK set_windows_hook( INT id, HOOKPROC proc, HINSTANCE inst, DWORD tid, BOOL unicode ) |
| { |
| HHOOK handle = 0; |
| WCHAR module[MAX_PATH]; |
| DWORD len; |
| |
| if (!proc) |
| { |
| SetLastError( ERROR_INVALID_FILTER_PROC ); |
| return 0; |
| } |
| |
| if (tid) /* thread-local hook */ |
| { |
| if (id == WH_JOURNALRECORD || |
| id == WH_JOURNALPLAYBACK || |
| id == WH_KEYBOARD_LL || |
| id == WH_MOUSE_LL || |
| id == WH_SYSMSGFILTER) |
| { |
| /* these can only be global */ |
| SetLastError( ERROR_INVALID_PARAMETER ); |
| return 0; |
| } |
| } |
| else /* system-global hook */ |
| { |
| if (id == WH_KEYBOARD_LL || id == WH_MOUSE_LL) inst = 0; |
| else if (!inst) |
| { |
| SetLastError( ERROR_HOOK_NEEDS_HMOD ); |
| return 0; |
| } |
| } |
| |
| if (inst && (!(len = GetModuleFileNameW( inst, module, MAX_PATH )) || len >= MAX_PATH)) |
| { |
| SetLastError( ERROR_INVALID_PARAMETER ); |
| return 0; |
| } |
| |
| SERVER_START_REQ( set_hook ) |
| { |
| req->id = id; |
| req->pid = 0; |
| req->tid = tid; |
| req->event_min = EVENT_MIN; |
| req->event_max = EVENT_MAX; |
| req->flags = WINEVENT_INCONTEXT; |
| req->unicode = unicode; |
| if (inst) /* make proc relative to the module base */ |
| { |
| req->proc = (void *)((char *)proc - (char *)inst); |
| wine_server_add_data( req, module, strlenW(module) * sizeof(WCHAR) ); |
| } |
| else req->proc = proc; |
| |
| if (!wine_server_call_err( req )) |
| { |
| handle = reply->handle; |
| get_user_thread_info()->active_hooks = reply->active_hooks; |
| } |
| } |
| SERVER_END_REQ; |
| |
| TRACE( "%s %p %x -> %p\n", hook_names[id-WH_MINHOOK], proc, tid, handle ); |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * call_hook_AtoW |
| */ |
| static LRESULT call_hook_AtoW( HOOKPROC proc, INT id, INT code, WPARAM wparam, LPARAM lparam ) |
| { |
| LRESULT ret; |
| UNICODE_STRING usBuffer; |
| if (id != WH_CBT || code != HCBT_CREATEWND) ret = proc( code, wparam, lparam ); |
| else |
| { |
| CBT_CREATEWNDA *cbtcwA = (CBT_CREATEWNDA *)lparam; |
| CBT_CREATEWNDW cbtcwW; |
| CREATESTRUCTW csW; |
| LPWSTR nameW = NULL; |
| LPWSTR classW = NULL; |
| |
| cbtcwW.lpcs = &csW; |
| cbtcwW.hwndInsertAfter = cbtcwA->hwndInsertAfter; |
| csW = *(CREATESTRUCTW *)cbtcwA->lpcs; |
| |
| if (HIWORD(cbtcwA->lpcs->lpszName)) |
| { |
| RtlCreateUnicodeStringFromAsciiz(&usBuffer,cbtcwA->lpcs->lpszName); |
| csW.lpszName = nameW = usBuffer.Buffer; |
| } |
| if (HIWORD(cbtcwA->lpcs->lpszClass)) |
| { |
| RtlCreateUnicodeStringFromAsciiz(&usBuffer,cbtcwA->lpcs->lpszClass); |
| csW.lpszClass = classW = usBuffer.Buffer; |
| } |
| ret = proc( code, wparam, (LPARAM)&cbtcwW ); |
| cbtcwA->hwndInsertAfter = cbtcwW.hwndInsertAfter; |
| HeapFree( GetProcessHeap(), 0, nameW ); |
| HeapFree( GetProcessHeap(), 0, classW ); |
| } |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * call_hook_WtoA |
| */ |
| static LRESULT call_hook_WtoA( HOOKPROC proc, INT id, INT code, WPARAM wparam, LPARAM lparam ) |
| { |
| LRESULT ret; |
| |
| if (id != WH_CBT || code != HCBT_CREATEWND) ret = proc( code, wparam, lparam ); |
| else |
| { |
| CBT_CREATEWNDW *cbtcwW = (CBT_CREATEWNDW *)lparam; |
| CBT_CREATEWNDA cbtcwA; |
| CREATESTRUCTA csA; |
| int len; |
| LPSTR nameA = NULL; |
| LPSTR classA = NULL; |
| |
| cbtcwA.lpcs = &csA; |
| cbtcwA.hwndInsertAfter = cbtcwW->hwndInsertAfter; |
| csA = *(CREATESTRUCTA *)cbtcwW->lpcs; |
| |
| if (HIWORD(cbtcwW->lpcs->lpszName)) { |
| len = WideCharToMultiByte( CP_ACP, 0, cbtcwW->lpcs->lpszName, -1, NULL, 0, NULL, NULL ); |
| nameA = HeapAlloc( GetProcessHeap(), 0, len*sizeof(CHAR) ); |
| WideCharToMultiByte( CP_ACP, 0, cbtcwW->lpcs->lpszName, -1, nameA, len, NULL, NULL ); |
| csA.lpszName = nameA; |
| } |
| |
| if (HIWORD(cbtcwW->lpcs->lpszClass)) { |
| len = WideCharToMultiByte( CP_ACP, 0, cbtcwW->lpcs->lpszClass, -1, NULL, 0, NULL, NULL ); |
| classA = HeapAlloc( GetProcessHeap(), 0, len*sizeof(CHAR) ); |
| WideCharToMultiByte( CP_ACP, 0, cbtcwW->lpcs->lpszClass, -1, classA, len, NULL, NULL ); |
| csA.lpszClass = classA; |
| } |
| |
| ret = proc( code, wparam, (LPARAM)&cbtcwA ); |
| cbtcwW->hwndInsertAfter = cbtcwA.hwndInsertAfter; |
| HeapFree( GetProcessHeap(), 0, nameA ); |
| HeapFree( GetProcessHeap(), 0, classA ); |
| } |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * call_hook_proc |
| */ |
| static LRESULT call_hook_proc( HOOKPROC proc, INT id, INT code, WPARAM wparam, LPARAM lparam, |
| BOOL prev_unicode, BOOL next_unicode ) |
| { |
| LRESULT ret; |
| |
| if (TRACE_ON(relay)) |
| DPRINTF( "%04x:Call hook proc %p (id=%s,code=%x,wp=%08lx,lp=%08lx)\n", |
| GetCurrentThreadId(), proc, hook_names[id-WH_MINHOOK], code, wparam, lparam ); |
| |
| if (!prev_unicode == !next_unicode) ret = proc( code, wparam, lparam ); |
| else if (prev_unicode) ret = call_hook_WtoA( proc, id, code, wparam, lparam ); |
| else ret = call_hook_AtoW( proc, id, code, wparam, lparam ); |
| |
| if (TRACE_ON(relay)) |
| DPRINTF( "%04x:Ret hook proc %p (id=%s,code=%x,wp=%08lx,lp=%08lx) retval=%08lx\n", |
| GetCurrentThreadId(), proc, hook_names[id-WH_MINHOOK], code, wparam, lparam, ret ); |
| |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * get_hook_proc |
| * |
| * Retrieve the hook procedure real value for a module-relative proc |
| */ |
| static void *get_hook_proc( void *proc, const WCHAR *module ) |
| { |
| HMODULE mod; |
| |
| if (!(mod = GetModuleHandleW(module))) |
| { |
| TRACE( "loading %s\n", debugstr_w(module) ); |
| /* FIXME: the library will never be freed */ |
| if (!(mod = LoadLibraryW(module))) return NULL; |
| } |
| return (char *)mod + (ULONG_PTR)proc; |
| } |
| |
| /*********************************************************************** |
| * call_hook |
| * |
| * Call hook either in current thread or send message to the destination |
| * thread. |
| */ |
| static LRESULT call_hook( struct hook_info *info, INT code, WPARAM wparam, LPARAM lparam ) |
| { |
| DWORD_PTR ret = 0; |
| |
| if (info->tid) |
| { |
| struct hook_extra_info h_extra; |
| h_extra.handle = info->handle; |
| h_extra.lparam = lparam; |
| |
| TRACE( "calling hook in thread %04x %s code %x wp %lx lp %lx\n", |
| info->tid, hook_names[info->id-WH_MINHOOK], code, wparam, lparam ); |
| |
| switch(info->id) |
| { |
| case WH_KEYBOARD_LL: |
| MSG_SendInternalMessageTimeout( info->pid, info->tid, WM_WINE_KEYBOARD_LL_HOOK, |
| wparam, (LPARAM)&h_extra, SMTO_ABORTIFHUNG, |
| get_ll_hook_timeout(), &ret ); |
| break; |
| case WH_MOUSE_LL: |
| MSG_SendInternalMessageTimeout( info->pid, info->tid, WM_WINE_MOUSE_LL_HOOK, |
| wparam, (LPARAM)&h_extra, SMTO_ABORTIFHUNG, |
| get_ll_hook_timeout(), &ret ); |
| break; |
| default: |
| ERR("Unknown hook id %d\n", info->id); |
| assert(0); |
| break; |
| } |
| } |
| else if (info->proc) |
| { |
| TRACE( "calling hook %p %s code %x wp %lx lp %lx module %s\n", |
| info->proc, hook_names[info->id-WH_MINHOOK], code, wparam, |
| lparam, debugstr_w(info->module) ); |
| |
| if (!info->module[0] || |
| (info->proc = get_hook_proc( info->proc, info->module )) != NULL) |
| { |
| struct user_thread_info *thread_info = get_user_thread_info(); |
| HHOOK prev = thread_info->hook; |
| BOOL prev_unicode = thread_info->hook_unicode; |
| |
| thread_info->hook = info->handle; |
| thread_info->hook_unicode = info->next_unicode; |
| ret = call_hook_proc( (HOOKPROC)info->proc, info->id, code, wparam, lparam, |
| info->prev_unicode, info->next_unicode ); |
| thread_info->hook = prev; |
| thread_info->hook_unicode = prev_unicode; |
| } |
| } |
| return ret; |
| } |
| |
| /*********************************************************************** |
| * HOOK_CallHooks |
| */ |
| LRESULT HOOK_CallHooks( INT id, INT code, WPARAM wparam, LPARAM lparam, BOOL unicode ) |
| { |
| struct user_thread_info *thread_info = get_user_thread_info(); |
| struct hook_info info; |
| DWORD_PTR ret = 0; |
| |
| USER_CheckNotLock(); |
| |
| if (!HOOK_IsHooked( id )) |
| { |
| TRACE( "skipping hook %s mask %x\n", hook_names[id-WH_MINHOOK], thread_info->active_hooks ); |
| return 0; |
| } |
| |
| ZeroMemory( &info, sizeof(info) - sizeof(info.module) ); |
| info.prev_unicode = unicode; |
| info.id = id; |
| |
| SERVER_START_REQ( start_hook_chain ) |
| { |
| req->id = info.id; |
| req->event = EVENT_MIN; |
| wine_server_set_reply( req, info.module, sizeof(info.module)-sizeof(WCHAR) ); |
| if (!wine_server_call( req )) |
| { |
| info.module[wine_server_reply_size(req) / sizeof(WCHAR)] = 0; |
| info.handle = reply->handle; |
| info.pid = reply->pid; |
| info.tid = reply->tid; |
| info.proc = reply->proc; |
| info.next_unicode = reply->unicode; |
| thread_info->active_hooks = reply->active_hooks; |
| } |
| } |
| SERVER_END_REQ; |
| |
| if (!info.tid && !info.proc) return 0; |
| ret = call_hook( &info, code, wparam, lparam ); |
| |
| SERVER_START_REQ( finish_hook_chain ) |
| { |
| req->id = id; |
| wine_server_call( req ); |
| } |
| SERVER_END_REQ; |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * HOOK_IsHooked |
| */ |
| BOOL HOOK_IsHooked( INT id ) |
| { |
| struct user_thread_info *thread_info = get_user_thread_info(); |
| |
| if (!thread_info->active_hooks) return TRUE; |
| return (thread_info->active_hooks & (1 << (id - WH_MINHOOK))) != 0; |
| } |
| |
| |
| /*********************************************************************** |
| * SetWindowsHookA (USER32.@) |
| */ |
| HHOOK WINAPI SetWindowsHookA( INT id, HOOKPROC proc ) |
| { |
| return SetWindowsHookExA( id, proc, 0, GetCurrentThreadId() ); |
| } |
| |
| |
| /*********************************************************************** |
| * SetWindowsHookW (USER32.@) |
| */ |
| HHOOK WINAPI SetWindowsHookW( INT id, HOOKPROC proc ) |
| { |
| return SetWindowsHookExW( id, proc, 0, GetCurrentThreadId() ); |
| } |
| |
| |
| /*********************************************************************** |
| * SetWindowsHookExA (USER32.@) |
| */ |
| HHOOK WINAPI SetWindowsHookExA( INT id, HOOKPROC proc, HINSTANCE inst, DWORD tid ) |
| { |
| return set_windows_hook( id, proc, inst, tid, FALSE ); |
| } |
| |
| /*********************************************************************** |
| * SetWindowsHookExW (USER32.@) |
| */ |
| HHOOK WINAPI SetWindowsHookExW( INT id, HOOKPROC proc, HINSTANCE inst, DWORD tid ) |
| { |
| return set_windows_hook( id, proc, inst, tid, TRUE ); |
| } |
| |
| |
| /*********************************************************************** |
| * UnhookWindowsHook (USER32.@) |
| */ |
| BOOL WINAPI UnhookWindowsHook( INT id, HOOKPROC proc ) |
| { |
| BOOL ret; |
| |
| TRACE( "%s %p\n", hook_names[id-WH_MINHOOK], proc ); |
| |
| SERVER_START_REQ( remove_hook ) |
| { |
| req->handle = 0; |
| req->id = id; |
| req->proc = proc; |
| ret = !wine_server_call_err( req ); |
| if (ret) get_user_thread_info()->active_hooks = reply->active_hooks; |
| } |
| SERVER_END_REQ; |
| if (!ret && GetLastError() == ERROR_INVALID_HANDLE) SetLastError( ERROR_INVALID_HOOK_HANDLE ); |
| return ret; |
| } |
| |
| |
| |
| /*********************************************************************** |
| * UnhookWindowsHookEx (USER32.@) |
| */ |
| BOOL WINAPI UnhookWindowsHookEx( HHOOK hhook ) |
| { |
| BOOL ret; |
| |
| TRACE( "%p\n", hhook ); |
| |
| SERVER_START_REQ( remove_hook ) |
| { |
| req->handle = hhook; |
| req->id = 0; |
| ret = !wine_server_call_err( req ); |
| if (ret) get_user_thread_info()->active_hooks = reply->active_hooks; |
| } |
| SERVER_END_REQ; |
| if (!ret && GetLastError() == ERROR_INVALID_HANDLE) SetLastError( ERROR_INVALID_HOOK_HANDLE ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * CallNextHookEx (USER32.@) |
| */ |
| LRESULT WINAPI CallNextHookEx( HHOOK hhook, INT code, WPARAM wparam, LPARAM lparam ) |
| { |
| struct user_thread_info *thread_info = get_user_thread_info(); |
| struct hook_info info; |
| |
| ZeroMemory( &info, sizeof(info) - sizeof(info.module) ); |
| |
| SERVER_START_REQ( get_hook_info ) |
| { |
| req->handle = thread_info->hook; |
| req->get_next = 1; |
| req->event = EVENT_MIN; |
| wine_server_set_reply( req, info.module, sizeof(info.module)-sizeof(WCHAR) ); |
| if (!wine_server_call_err( req )) |
| { |
| info.module[wine_server_reply_size(req) / sizeof(WCHAR)] = 0; |
| info.handle = reply->handle; |
| info.id = reply->id; |
| info.pid = reply->pid; |
| info.tid = reply->tid; |
| info.proc = reply->proc; |
| info.next_unicode = reply->unicode; |
| } |
| } |
| SERVER_END_REQ; |
| |
| info.prev_unicode = thread_info->hook_unicode; |
| return call_hook( &info, code, wparam, lparam ); |
| } |
| |
| |
| LRESULT call_current_hook( HHOOK hhook, INT code, WPARAM wparam, LPARAM lparam ) |
| { |
| struct hook_info info; |
| |
| ZeroMemory( &info, sizeof(info) - sizeof(info.module) ); |
| |
| SERVER_START_REQ( get_hook_info ) |
| { |
| req->handle = hhook; |
| req->get_next = 0; |
| req->event = EVENT_MIN; |
| wine_server_set_reply( req, info.module, sizeof(info.module)-sizeof(WCHAR) ); |
| if (!wine_server_call_err( req )) |
| { |
| info.module[wine_server_reply_size(req) / sizeof(WCHAR)] = 0; |
| info.handle = reply->handle; |
| info.id = reply->id; |
| info.pid = reply->pid; |
| info.tid = reply->tid; |
| info.proc = reply->proc; |
| info.next_unicode = reply->unicode; |
| } |
| } |
| SERVER_END_REQ; |
| |
| info.prev_unicode = TRUE; /* assume Unicode for this function */ |
| return call_hook( &info, code, wparam, lparam ); |
| } |
| |
| /*********************************************************************** |
| * CallMsgFilterA (USER32.@) |
| */ |
| BOOL WINAPI CallMsgFilterA( LPMSG msg, INT code ) |
| { |
| if (HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)msg, FALSE )) return TRUE; |
| return HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)msg, FALSE ); |
| } |
| |
| |
| /*********************************************************************** |
| * CallMsgFilterW (USER32.@) |
| */ |
| BOOL WINAPI CallMsgFilterW( LPMSG msg, INT code ) |
| { |
| if (HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)msg, TRUE )) return TRUE; |
| return HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)msg, TRUE ); |
| } |
| |
| |
| /*********************************************************************** |
| * SetWinEventHook [USER32.@] |
| * |
| * Set up an event hook for a set of events. |
| * |
| * PARAMS |
| * event_min [I] Lowest event handled by pfnProc |
| * event_max [I] Highest event handled by pfnProc |
| * inst [I] DLL containing pfnProc |
| * proc [I] Callback event hook function |
| * pid [I] Process to get events from, or 0 for all processes |
| * tid [I] Thread to get events from, or 0 for all threads |
| * flags [I] Flags indicating the status of pfnProc |
| * |
| * RETURNS |
| * Success: A handle representing the hook. |
| * Failure: A NULL handle. |
| */ |
| HWINEVENTHOOK WINAPI SetWinEventHook(DWORD event_min, DWORD event_max, |
| HMODULE inst, WINEVENTPROC proc, |
| DWORD pid, DWORD tid, DWORD flags) |
| { |
| HWINEVENTHOOK handle = 0; |
| WCHAR module[MAX_PATH]; |
| DWORD len; |
| |
| TRACE("%d,%d,%p,%p,%08x,%04x,%08x\n", event_min, event_max, inst, |
| proc, pid, tid, flags); |
| |
| if (inst) |
| { |
| if (!(len = GetModuleFileNameW(inst, module, MAX_PATH)) || len >= MAX_PATH) |
| inst = 0; |
| } |
| |
| if ((flags & WINEVENT_INCONTEXT) && !inst) |
| { |
| SetLastError(ERROR_HOOK_NEEDS_HMOD); |
| return 0; |
| } |
| |
| if (event_min > event_max) |
| { |
| SetLastError(ERROR_INVALID_HOOK_FILTER); |
| return 0; |
| } |
| |
| /* FIXME: what if the tid or pid belongs to another process? */ |
| if (tid) /* thread-local hook */ |
| inst = 0; |
| |
| SERVER_START_REQ( set_hook ) |
| { |
| req->id = WH_WINEVENT; |
| req->pid = pid; |
| req->tid = tid; |
| req->event_min = event_min; |
| req->event_max = event_max; |
| req->flags = flags; |
| req->unicode = 1; |
| if (inst) /* make proc relative to the module base */ |
| { |
| req->proc = (void *)((char *)proc - (char *)inst); |
| wine_server_add_data( req, module, strlenW(module) * sizeof(WCHAR) ); |
| } |
| else req->proc = proc; |
| |
| if (!wine_server_call_err( req )) |
| { |
| handle = reply->handle; |
| get_user_thread_info()->active_hooks = reply->active_hooks; |
| } |
| } |
| SERVER_END_REQ; |
| |
| TRACE("-> %p\n", handle); |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * UnhookWinEvent [USER32.@] |
| * |
| * Remove an event hook for a set of events. |
| * |
| * PARAMS |
| * hEventHook [I] Event hook to remove |
| * |
| * RETURNS |
| * Success: TRUE. The event hook has been removed. |
| * Failure: FALSE, if hEventHook is invalid. |
| */ |
| BOOL WINAPI UnhookWinEvent(HWINEVENTHOOK hEventHook) |
| { |
| BOOL ret; |
| |
| TRACE( "%p\n", hEventHook ); |
| |
| SERVER_START_REQ( remove_hook ) |
| { |
| req->handle = hEventHook; |
| req->id = WH_WINEVENT; |
| ret = !wine_server_call_err( req ); |
| if (ret) get_user_thread_info()->active_hooks = reply->active_hooks; |
| } |
| SERVER_END_REQ; |
| return ret; |
| } |
| |
| static inline BOOL find_first_hook(DWORD id, DWORD event, HWND hwnd, LONG object_id, |
| LONG child_id, struct hook_info *info) |
| { |
| struct user_thread_info *thread_info = get_user_thread_info(); |
| BOOL ret; |
| |
| if (!HOOK_IsHooked( id )) |
| { |
| TRACE( "skipping hook %s mask %x\n", hook_names[id-WH_MINHOOK], thread_info->active_hooks ); |
| return FALSE; |
| } |
| |
| SERVER_START_REQ( start_hook_chain ) |
| { |
| req->id = id; |
| req->event = event; |
| req->window = hwnd; |
| req->object_id = object_id; |
| req->child_id = child_id; |
| wine_server_set_reply( req, info->module, sizeof(info->module)-sizeof(WCHAR) ); |
| ret = !wine_server_call( req ); |
| if (ret) |
| { |
| info->module[wine_server_reply_size(req) / sizeof(WCHAR)] = 0; |
| info->handle = reply->handle; |
| info->proc = reply->proc; |
| info->tid = reply->tid; |
| thread_info->active_hooks = reply->active_hooks; |
| } |
| } |
| SERVER_END_REQ; |
| return ret && (info->tid || info->proc); |
| } |
| |
| static inline BOOL find_next_hook(DWORD event, HWND hwnd, LONG object_id, |
| LONG child_id, struct hook_info *info) |
| { |
| BOOL ret; |
| |
| SERVER_START_REQ( get_hook_info ) |
| { |
| req->handle = info->handle; |
| req->get_next = 1; |
| req->event = event; |
| req->window = hwnd; |
| req->object_id = object_id; |
| req->child_id = child_id; |
| wine_server_set_reply( req, info->module, sizeof(info->module)-sizeof(WCHAR) ); |
| ret = !wine_server_call( req ); |
| if (ret) |
| { |
| info->module[wine_server_reply_size(req) / sizeof(WCHAR)] = 0; |
| info->handle = reply->handle; |
| info->proc = reply->proc; |
| info->tid = reply->tid; |
| } |
| } |
| SERVER_END_REQ; |
| return ret; |
| } |
| |
| static inline void find_hook_close(DWORD id) |
| { |
| SERVER_START_REQ( finish_hook_chain ) |
| { |
| req->id = id; |
| wine_server_call( req ); |
| } |
| SERVER_END_REQ; |
| } |
| |
| /*********************************************************************** |
| * NotifyWinEvent [USER32.@] |
| * |
| * Inform the OS that an event has occurred. |
| * |
| * PARAMS |
| * event [I] Id of the event |
| * hwnd [I] Window holding the object that created the event |
| * object_id [I] Type of object that created the event |
| * child_id [I] Child object of nId, or CHILDID_SELF. |
| * |
| * RETURNS |
| * Nothing. |
| */ |
| void WINAPI NotifyWinEvent(DWORD event, HWND hwnd, LONG object_id, LONG child_id) |
| { |
| struct hook_info info; |
| |
| TRACE("%04x,%p,%d,%d\n", event, hwnd, object_id, child_id); |
| |
| if (!hwnd) |
| { |
| SetLastError(ERROR_INVALID_WINDOW_HANDLE); |
| return; |
| } |
| |
| USER_CheckNotLock(); |
| |
| #if 0 |
| if (event & 0x80000000) |
| { |
| /* FIXME: on 64-bit platforms we need to invent some other way for |
| * passing parameters, nId and nChildId can't hold full [W|L]PARAM. |
| * struct call_hook *hook = (LRESULT *)hWnd; |
| * wparam = hook->wparam; |
| * lparam = hook->lparam; |
| */ |
| LRESULT *ret = (LRESULT *)hwnd; |
| INT id, code, unicode; |
| |
| id = (dwEvent & 0x7fff0000) >> 16; |
| code = event & 0x7fff; |
| unicode = event & 0x8000; |
| *ret = HOOK_CallHooks(id, code, object_id, child_id, unicode); |
| return; |
| } |
| #endif |
| |
| if (!find_first_hook(WH_WINEVENT, event, hwnd, object_id, child_id, &info)) return; |
| |
| do |
| { |
| if (info.proc) |
| { |
| TRACE( "calling WH_WINEVENT hook %p event %x hwnd %p %x %x module %s\n", |
| info.proc, event, hwnd, object_id, child_id, debugstr_w(info.module) ); |
| |
| if (!info.module[0] || (info.proc = get_hook_proc( info.proc, info.module )) != NULL) |
| { |
| if (TRACE_ON(relay)) |
| DPRINTF( "%04x:Call winevent hook proc %p (hhook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%x,tid=%04x,time=%x)\n", |
| GetCurrentThreadId(), info.proc, info.handle, event, hwnd, object_id, |
| child_id, GetCurrentThreadId(), GetCurrentTime()); |
| |
| info.proc(info.handle, event, hwnd, object_id, child_id, |
| GetCurrentThreadId(), GetCurrentTime()); |
| |
| if (TRACE_ON(relay)) |
| DPRINTF( "%04x:Ret winevent hook proc %p (hhook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%x,tid=%04x,time=%x)\n", |
| GetCurrentThreadId(), info.proc, info.handle, event, hwnd, object_id, |
| child_id, GetCurrentThreadId(), GetCurrentTime()); |
| } |
| } |
| else |
| break; |
| } |
| while (find_next_hook(event, hwnd, object_id, child_id, &info)); |
| |
| find_hook_close(WH_WINEVENT); |
| } |
| |
| |
| /*********************************************************************** |
| * IsWinEventHookInstalled [USER32.@] |
| * |
| * Determine if an event hook is installed for an event. |
| * |
| * PARAMS |
| * dwEvent [I] Id of the event |
| * |
| * RETURNS |
| * TRUE, If there are any hooks installed for the event. |
| * FALSE, Otherwise. |
| * |
| * BUGS |
| * Not implemented. |
| */ |
| BOOL WINAPI IsWinEventHookInstalled(DWORD dwEvent) |
| { |
| FIXME("(%d)-stub!\n", dwEvent); |
| return TRUE; |
| } |
