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![Tim Clem](/assets/img/avatar_default.png)
libpng is currently loaded on the first attempt to access a PNG icon or cursor. That creates a race condition that can deadlock the loader in certain circumstances if LoadIcon or LoadCursor is called while the loader lock is held, e.g. from a DllMain. Signed-off-by: Tim Clem <tclem@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
400 lines
16 KiB
C
400 lines
16 KiB
C
/*
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* USER private definitions
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*
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* Copyright 1993 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __WINE_USER_PRIVATE_H
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#define __WINE_USER_PRIVATE_H
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "winreg.h"
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#include "winternl.h"
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#include "hidusage.h"
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#include "wine/heap.h"
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#define GET_WORD(ptr) (*(const WORD *)(ptr))
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#define GET_DWORD(ptr) (*(const DWORD *)(ptr))
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#define GET_LONG(ptr) (*(const LONG *)(ptr))
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#define WM_SYSTIMER 0x0118
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#define WM_POPUPSYSTEMMENU 0x0313
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#define WINE_MOUSE_HANDLE ((HANDLE)1)
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#define WINE_KEYBOARD_HANDLE ((HANDLE)2)
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struct window_surface;
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/* internal messages codes */
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enum wine_internal_message
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{
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WM_WINE_DESTROYWINDOW = 0x80000000,
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WM_WINE_SETWINDOWPOS,
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WM_WINE_SHOWWINDOW,
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WM_WINE_SETPARENT,
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WM_WINE_SETWINDOWLONG,
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WM_WINE_SETSTYLE,
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WM_WINE_SETACTIVEWINDOW,
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WM_WINE_KEYBOARD_LL_HOOK,
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WM_WINE_MOUSE_LL_HOOK,
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WM_WINE_CLIPCURSOR,
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WM_WINE_UPDATEWINDOWSTATE,
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WM_WINE_FIRST_DRIVER_MSG = 0x80001000, /* range of messages reserved for the USER driver */
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WM_WINE_LAST_DRIVER_MSG = 0x80001fff
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};
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typedef struct tagUSER_DRIVER {
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/* keyboard functions */
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BOOL (CDECL *pActivateKeyboardLayout)(HKL, UINT);
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void (CDECL *pBeep)(void);
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INT (CDECL *pGetKeyNameText)(LONG, LPWSTR, INT);
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UINT (CDECL *pGetKeyboardLayoutList)(INT, HKL *);
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UINT (CDECL *pMapVirtualKeyEx)(UINT, UINT, HKL);
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BOOL (CDECL *pRegisterHotKey)(HWND, UINT, UINT);
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INT (CDECL *pToUnicodeEx)(UINT, UINT, const BYTE *, LPWSTR, int, UINT, HKL);
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void (CDECL *pUnregisterHotKey)(HWND, UINT, UINT);
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SHORT (CDECL *pVkKeyScanEx)(WCHAR, HKL);
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/* cursor/icon functions */
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void (CDECL *pDestroyCursorIcon)(HCURSOR);
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void (CDECL *pSetCursor)(HCURSOR);
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BOOL (CDECL *pGetCursorPos)(LPPOINT);
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BOOL (CDECL *pSetCursorPos)(INT,INT);
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BOOL (CDECL *pClipCursor)(LPCRECT);
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/* clipboard functions */
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void (CDECL *pUpdateClipboard)(void);
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/* display modes */
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LONG (CDECL *pChangeDisplaySettingsEx)(LPCWSTR,LPDEVMODEW,HWND,DWORD,LPVOID);
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BOOL (CDECL *pEnumDisplayMonitors)(HDC,LPRECT,MONITORENUMPROC,LPARAM);
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BOOL (CDECL *pEnumDisplaySettingsEx)(LPCWSTR,DWORD,LPDEVMODEW,DWORD);
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BOOL (CDECL *pGetMonitorInfo)(HMONITOR,MONITORINFO*);
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/* windowing functions */
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BOOL (CDECL *pCreateDesktopWindow)(HWND);
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BOOL (CDECL *pCreateWindow)(HWND);
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void (CDECL *pDestroyWindow)(HWND);
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void (CDECL *pFlashWindowEx)(FLASHWINFO*);
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void (CDECL *pGetDC)(HDC,HWND,HWND,const RECT *,const RECT *,DWORD);
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DWORD (CDECL *pMsgWaitForMultipleObjectsEx)(DWORD,const HANDLE*,DWORD,DWORD,DWORD);
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void (CDECL *pReleaseDC)(HWND,HDC);
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BOOL (CDECL *pScrollDC)(HDC,INT,INT,HRGN);
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void (CDECL *pSetCapture)(HWND,UINT);
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void (CDECL *pSetFocus)(HWND);
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void (CDECL *pSetLayeredWindowAttributes)(HWND,COLORREF,BYTE,DWORD);
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void (CDECL *pSetParent)(HWND,HWND,HWND);
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void (CDECL *pSetWindowRgn)(HWND,HRGN,BOOL);
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void (CDECL *pSetWindowIcon)(HWND,UINT,HICON);
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void (CDECL *pSetWindowStyle)(HWND,INT,STYLESTRUCT*);
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void (CDECL *pSetWindowText)(HWND,LPCWSTR);
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UINT (CDECL *pShowWindow)(HWND,INT,RECT*,UINT);
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LRESULT (CDECL *pSysCommand)(HWND,WPARAM,LPARAM);
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BOOL (CDECL *pUpdateLayeredWindow)(HWND,const UPDATELAYEREDWINDOWINFO *,const RECT *);
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LRESULT (CDECL *pWindowMessage)(HWND,UINT,WPARAM,LPARAM);
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BOOL (CDECL *pWindowPosChanging)(HWND,HWND,UINT,const RECT *,const RECT *,RECT *,struct window_surface**);
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void (CDECL *pWindowPosChanged)(HWND,HWND,UINT,const RECT *,const RECT *,const RECT *,const RECT *,struct window_surface*);
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/* system parameters */
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BOOL (CDECL *pSystemParametersInfo)(UINT,UINT,void*,UINT);
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/* thread management */
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void (CDECL *pThreadDetach)(void);
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} USER_DRIVER;
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extern const USER_DRIVER *USER_Driver DECLSPEC_HIDDEN;
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extern void USER_unload_driver(void) DECLSPEC_HIDDEN;
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extern BOOL CDECL nulldrv_EnumDisplayMonitors( HDC hdc, RECT *rect, MONITORENUMPROC proc, LPARAM lp ) DECLSPEC_HIDDEN;
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extern BOOL CDECL nulldrv_GetMonitorInfo( HMONITOR handle, MONITORINFO *info ) DECLSPEC_HIDDEN;
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struct received_message_info;
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enum user_obj_type
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{
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USER_WINDOW = 1, /* window */
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USER_MENU, /* menu */
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USER_ACCEL, /* accelerator */
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USER_ICON, /* icon or cursor */
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USER_DWP /* DeferWindowPos structure */
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};
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struct user_object
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{
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HANDLE handle;
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enum user_obj_type type;
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};
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#define OBJ_OTHER_PROCESS ((void *)1) /* returned by get_user_handle_ptr on unknown handles */
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HANDLE alloc_user_handle( struct user_object *ptr, enum user_obj_type type ) DECLSPEC_HIDDEN;
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void *get_user_handle_ptr( HANDLE handle, enum user_obj_type type ) DECLSPEC_HIDDEN;
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void release_user_handle_ptr( void *ptr ) DECLSPEC_HIDDEN;
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void *free_user_handle( HANDLE handle, enum user_obj_type type ) DECLSPEC_HIDDEN;
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/* type of message-sending functions that need special WM_CHAR handling */
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enum wm_char_mapping
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{
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WMCHAR_MAP_POSTMESSAGE,
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WMCHAR_MAP_SENDMESSAGE,
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WMCHAR_MAP_SENDMESSAGETIMEOUT,
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WMCHAR_MAP_RECVMESSAGE,
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WMCHAR_MAP_DISPATCHMESSAGE,
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WMCHAR_MAP_CALLWINDOWPROC,
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WMCHAR_MAP_COUNT,
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WMCHAR_MAP_NOMAPPING = WMCHAR_MAP_COUNT
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};
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/* data to store state for A/W mappings of WM_CHAR */
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struct wm_char_mapping_data
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{
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BYTE lead_byte[WMCHAR_MAP_COUNT];
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MSG get_msg;
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};
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/* on windows the buffer capacity is quite large as well, enough to */
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/* hold up to 10s of 1kHz mouse rawinput events */
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#define RAWINPUT_BUFFER_SIZE (512*1024)
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struct rawinput_thread_data
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{
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UINT hw_id; /* current rawinput message id */
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RAWINPUT buffer[1]; /* rawinput message data buffer */
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};
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/* this is the structure stored in TEB->Win32ClientInfo */
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/* no attempt is made to keep the layout compatible with the Windows one */
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struct user_thread_info
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{
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HANDLE server_queue; /* Handle to server-side queue */
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DWORD wake_mask; /* Current queue wake mask */
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DWORD changed_mask; /* Current queue changed mask */
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WORD recursion_count; /* SendMessage recursion counter */
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WORD message_count; /* Get/PeekMessage loop counter */
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WORD hook_call_depth; /* Number of recursively called hook procs */
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WORD hook_unicode; /* Is current hook unicode? */
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HHOOK hook; /* Current hook */
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UINT active_hooks; /* Bitmap of active hooks */
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DPI_AWARENESS dpi_awareness; /* DPI awareness */
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INPUT_MESSAGE_SOURCE msg_source; /* Message source for current message */
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struct received_message_info *receive_info; /* Message being currently received */
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struct wm_char_mapping_data *wmchar_data; /* Data for WM_CHAR mappings */
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DWORD GetMessageTimeVal; /* Value for GetMessageTime */
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DWORD GetMessagePosVal; /* Value for GetMessagePos */
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ULONG_PTR GetMessageExtraInfoVal; /* Value for GetMessageExtraInfo */
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struct user_key_state_info *key_state; /* Cache of global key state */
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HKL kbd_layout; /* Current keyboard layout */
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DWORD kbd_layout_id; /* Current keyboard layout ID */
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HWND top_window; /* Desktop window */
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HWND msg_window; /* HWND_MESSAGE parent window */
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struct rawinput_thread_data *rawinput; /* RawInput thread local data / buffer */
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};
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C_ASSERT( sizeof(struct user_thread_info) <= sizeof(((TEB *)0)->Win32ClientInfo) );
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extern INT global_key_state_counter DECLSPEC_HIDDEN;
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extern BOOL (WINAPI *imm_register_window)(HWND) DECLSPEC_HIDDEN;
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extern void (WINAPI *imm_unregister_window)(HWND) DECLSPEC_HIDDEN;
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struct user_key_state_info
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{
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UINT time; /* Time of last key state refresh */
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INT counter; /* Counter to invalidate the key state */
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BYTE state[256]; /* State for each key */
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};
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struct hook_extra_info
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{
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HHOOK handle;
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LPARAM lparam;
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};
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static inline struct user_thread_info *get_user_thread_info(void)
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{
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return (struct user_thread_info *)NtCurrentTeb()->Win32ClientInfo;
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}
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/* check if hwnd is a broadcast magic handle */
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static inline BOOL is_broadcast( HWND hwnd )
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{
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return (hwnd == HWND_BROADCAST || hwnd == HWND_TOPMOST);
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}
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extern HMODULE user32_module DECLSPEC_HIDDEN;
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struct dce;
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struct tagWND;
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struct hardware_msg_data;
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extern BOOL rawinput_from_hardware_message(RAWINPUT *rawinput, const struct hardware_msg_data *msg_data);
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extern BOOL rawinput_device_get_usages(HANDLE handle, USAGE *usage_page, USAGE *usage);
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extern struct rawinput_thread_data *rawinput_thread_data(void);
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extern void keyboard_init(void) DECLSPEC_HIDDEN;
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extern void create_offscreen_window_surface( const RECT *visible_rect, struct window_surface **surface ) DECLSPEC_HIDDEN;
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extern void CLIPBOARD_ReleaseOwner( HWND hwnd ) DECLSPEC_HIDDEN;
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extern BOOL FOCUS_MouseActivate( HWND hwnd ) DECLSPEC_HIDDEN;
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extern BOOL set_capture_window( HWND hwnd, UINT gui_flags, HWND *prev_ret ) DECLSPEC_HIDDEN;
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extern void free_dce( struct dce *dce, HWND hwnd ) DECLSPEC_HIDDEN;
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extern void invalidate_dce( struct tagWND *win, const RECT *rect ) DECLSPEC_HIDDEN;
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extern HDC get_display_dc(void) DECLSPEC_HIDDEN;
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extern void release_display_dc( HDC hdc ) DECLSPEC_HIDDEN;
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extern void erase_now( HWND hwnd, UINT rdw_flags ) DECLSPEC_HIDDEN;
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extern void move_window_bits( HWND hwnd, struct window_surface *old_surface,
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struct window_surface *new_surface,
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const RECT *visible_rect, const RECT *old_visible_rect,
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const RECT *window_rect, const RECT *valid_rects ) DECLSPEC_HIDDEN;
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extern void move_window_bits_parent( HWND hwnd, HWND parent, const RECT *window_rect,
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const RECT *valid_rects ) DECLSPEC_HIDDEN;
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extern void update_window_state( HWND hwnd ) DECLSPEC_HIDDEN;
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extern void wait_graphics_driver_ready(void) DECLSPEC_HIDDEN;
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extern void *get_hook_proc( void *proc, const WCHAR *module, HMODULE *free_module ) DECLSPEC_HIDDEN;
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extern RECT get_virtual_screen_rect(void) DECLSPEC_HIDDEN;
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extern RECT get_primary_monitor_rect(void) DECLSPEC_HIDDEN;
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extern LRESULT call_current_hook( HHOOK hhook, INT code, WPARAM wparam, LPARAM lparam ) DECLSPEC_HIDDEN;
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extern DWORD get_input_codepage( void ) DECLSPEC_HIDDEN;
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extern BOOL map_wparam_AtoW( UINT message, WPARAM *wparam, enum wm_char_mapping mapping ) DECLSPEC_HIDDEN;
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extern NTSTATUS send_hardware_message( HWND hwnd, const INPUT *input, const RAWINPUT *rawinput, UINT flags ) DECLSPEC_HIDDEN;
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extern LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
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UINT msg, WPARAM wparam, LPARAM lparam,
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UINT flags, UINT timeout, PDWORD_PTR res_ptr ) DECLSPEC_HIDDEN;
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extern HPEN SYSCOLOR_GetPen( INT index ) DECLSPEC_HIDDEN;
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extern HBRUSH SYSCOLOR_Get55AABrush(void) DECLSPEC_HIDDEN;
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extern void SYSPARAMS_Init(void) DECLSPEC_HIDDEN;
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extern void USER_CheckNotLock(void) DECLSPEC_HIDDEN;
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extern BOOL USER_IsExitingThread( DWORD tid ) DECLSPEC_HIDDEN;
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extern BOOL USER_SetWindowPos( WINDOWPOS * winpos, int parent_x, int parent_y ) DECLSPEC_HIDDEN;
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typedef LRESULT (*winproc_callback_t)( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
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LRESULT *result, void *arg );
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extern WNDPROC WINPROC_GetProc( WNDPROC proc, BOOL unicode ) DECLSPEC_HIDDEN;
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extern WNDPROC WINPROC_AllocProc( WNDPROC func, BOOL unicode ) DECLSPEC_HIDDEN;
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extern BOOL WINPROC_IsUnicode( WNDPROC proc, BOOL def_val ) DECLSPEC_HIDDEN;
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extern LRESULT WINPROC_CallProcAtoW( winproc_callback_t callback, HWND hwnd, UINT msg,
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WPARAM wParam, LPARAM lParam, LRESULT *result, void *arg,
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enum wm_char_mapping mapping ) DECLSPEC_HIDDEN;
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extern INT_PTR WINPROC_CallDlgProcA( DLGPROC func, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam ) DECLSPEC_HIDDEN;
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extern INT_PTR WINPROC_CallDlgProcW( DLGPROC func, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam ) DECLSPEC_HIDDEN;
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extern BOOL WINPROC_call_window( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam,
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LRESULT *result, BOOL unicode, enum wm_char_mapping mapping ) DECLSPEC_HIDDEN;
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extern const WCHAR *CLASS_GetVersionedName(const WCHAR *classname, UINT *basename_offset,
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WCHAR *combined, BOOL register_class) DECLSPEC_HIDDEN;
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/* message spy definitions */
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#define SPY_DISPATCHMESSAGE 0x0100
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#define SPY_SENDMESSAGE 0x0101
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#define SPY_DEFWNDPROC 0x0102
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#define SPY_RESULT_OK 0x0001
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#define SPY_RESULT_DEFWND 0x0002
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extern const char *SPY_GetClassLongOffsetName( INT offset ) DECLSPEC_HIDDEN;
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extern const char *SPY_GetMsgName( UINT msg, HWND hWnd ) DECLSPEC_HIDDEN;
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extern const char *SPY_GetVKeyName(WPARAM wParam) DECLSPEC_HIDDEN;
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extern void SPY_EnterMessage( INT iFlag, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam ) DECLSPEC_HIDDEN;
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extern void SPY_ExitMessage( INT iFlag, HWND hwnd, UINT msg,
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LRESULT lReturn, WPARAM wParam, LPARAM lParam ) DECLSPEC_HIDDEN;
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#include "pshpack1.h"
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typedef struct
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{
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BYTE bWidth;
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BYTE bHeight;
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BYTE bColorCount;
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BYTE bReserved;
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} ICONRESDIR;
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typedef struct
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{
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WORD wWidth;
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WORD wHeight;
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} CURSORDIR;
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typedef struct
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{ union
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{ ICONRESDIR icon;
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CURSORDIR cursor;
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} ResInfo;
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WORD wPlanes;
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WORD wBitCount;
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DWORD dwBytesInRes;
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WORD wResId;
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} CURSORICONDIRENTRY;
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typedef struct
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{
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WORD idReserved;
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WORD idType;
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WORD idCount;
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CURSORICONDIRENTRY idEntries[1];
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} CURSORICONDIR;
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typedef struct {
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BYTE bWidth;
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BYTE bHeight;
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BYTE bColorCount;
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BYTE bReserved;
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WORD xHotspot;
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WORD yHotspot;
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DWORD dwDIBSize;
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DWORD dwDIBOffset;
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} CURSORICONFILEDIRENTRY;
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typedef struct
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{
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WORD idReserved;
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WORD idType;
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WORD idCount;
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CURSORICONFILEDIRENTRY idEntries[1];
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} CURSORICONFILEDIR;
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#include "poppack.h"
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extern int bitmap_info_size( const BITMAPINFO * info, WORD coloruse ) DECLSPEC_HIDDEN;
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extern BOOL get_icon_size( HICON handle, SIZE *size ) DECLSPEC_HIDDEN;
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struct png_funcs
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{
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BOOL (CDECL *get_png_info)(const void *png_data, DWORD size, int *width, int *height, int *bpp);
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BITMAPINFO * (CDECL *load_png)(const char *png_data, DWORD *size);
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};
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/* May be NULL if libpng cannot be loaded. */
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extern const struct png_funcs *png_funcs DECLSPEC_HIDDEN;
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/* Mingw's assert() imports MessageBoxA and gets confused by user32 exporting it */
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#ifdef __MINGW32__
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#undef assert
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#define assert(expr) ((void)0)
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#endif
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extern struct user_api_hook *user_api DECLSPEC_HIDDEN;
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LRESULT WINAPI USER_DefDlgProc(HWND, UINT, WPARAM, LPARAM, BOOL) DECLSPEC_HIDDEN;
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LRESULT WINAPI USER_ScrollBarProc(HWND, UINT, WPARAM, LPARAM, BOOL) DECLSPEC_HIDDEN;
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void WINAPI USER_ScrollBarDraw(HWND, HDC, INT, enum SCROLL_HITTEST,
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const struct SCROLL_TRACKING_INFO *, BOOL, BOOL, RECT *, INT, INT,
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INT, BOOL) DECLSPEC_HIDDEN;
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#endif /* __WINE_USER_PRIVATE_H */
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