Google Git Google Git
Sign in
goma/wine/f61786d444003636a0f634b1d0c7703932aa2b0d/./dlls/user/message.c
blob: 33debaf3c82a667159ca207a5e519a60359371c4 [file]
/*
* Window messaging support
*
* Copyright 2001 Alexandre Julliard
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <stdarg.h>
#include "ntstatus.h"
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "winnls.h"
#include "dde.h"
#include "wine/unicode.h"
#include "wine/server.h"
#include "message.h"
#include "user.h"
#include "win.h"
#include "winproc.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msg);
WINE_DECLARE_DEBUG_CHANNEL(relay);
#define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
#define WM_NCMOUSELAST WM_NCMBUTTONDBLCLK
#define MAX_PACK_COUNT 4
/* description of the data fields that need to be packed along with a sent message */
struct packed_message
{
int count;
const void *data[MAX_PACK_COUNT];
size_t size[MAX_PACK_COUNT];
};
/* info about the message currently being received by the current thread */
struct received_message_info
{
enum message_type type;
MSG msg;
UINT flags; /* InSendMessageEx return flags */
};
/* structure to group all parameters for sent messages of the various kinds */
struct send_message_info
{
enum message_type type;
HWND hwnd;
UINT msg;
WPARAM wparam;
LPARAM lparam;
UINT flags; /* flags for SendMessageTimeout */
UINT timeout; /* timeout for SendMessageTimeout */
SENDASYNCPROC callback; /* callback function for SendMessageCallback */
ULONG_PTR data; /* callback data */
};
/* flag for messages that contain pointers */
/* 32 messages per entry, messages 0..31 map to bits 0..31 */
#define SET(msg) (1 << ((msg) & 31))
static const unsigned int message_pointer_flags[] =
{
/* 0x00 - 0x1f */
SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
/* 0x20 - 0x3f */
SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
SET(WM_COMPAREITEM),
/* 0x40 - 0x5f */
SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
SET(WM_NOTIFY) | SET(WM_HELP),
/* 0x60 - 0x7f */
SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
/* 0x80 - 0x9f */
SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
/* 0xa0 - 0xbf */
SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
/* 0xc0 - 0xdf */
SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
/* 0xe0 - 0xff */
SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO),
/* 0x100 - 0x11f */
0,
/* 0x120 - 0x13f */
0,
/* 0x140 - 0x15f */
SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
/* 0x160 - 0x17f */
0,
/* 0x180 - 0x19f */
SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
SET(LB_DIR) | SET(LB_FINDSTRING) |
SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
/* 0x1a0 - 0x1bf */
SET(LB_FINDSTRINGEXACT),
/* 0x1c0 - 0x1df */
0,
/* 0x1e0 - 0x1ff */
0,
/* 0x200 - 0x21f */
SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
/* 0x220 - 0x23f */
SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
/* 0x240 - 0x25f */
0,
/* 0x260 - 0x27f */
0,
/* 0x280 - 0x29f */
0,
/* 0x2a0 - 0x2bf */
0,
/* 0x2c0 - 0x2df */
0,
/* 0x2e0 - 0x2ff */
0,
/* 0x300 - 0x31f */
SET(WM_ASKCBFORMATNAME)
};
/* flags for messages that contain Unicode strings */
static const unsigned int message_unicode_flags[] =
{
/* 0x00 - 0x1f */
SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
/* 0x20 - 0x3f */
SET(WM_CHARTOITEM),
/* 0x40 - 0x5f */
0,
/* 0x60 - 0x7f */
0,
/* 0x80 - 0x9f */
SET(WM_NCCREATE),
/* 0xa0 - 0xbf */
0,
/* 0xc0 - 0xdf */
SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
/* 0xe0 - 0xff */
0,
/* 0x100 - 0x11f */
SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
/* 0x120 - 0x13f */
SET(WM_MENUCHAR),
/* 0x140 - 0x15f */
SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
/* 0x160 - 0x17f */
0,
/* 0x180 - 0x19f */
SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
/* 0x1a0 - 0x1bf */
SET(LB_FINDSTRINGEXACT),
/* 0x1c0 - 0x1df */
0,
/* 0x1e0 - 0x1ff */
0,
/* 0x200 - 0x21f */
0,
/* 0x220 - 0x23f */
SET(WM_MDICREATE),
/* 0x240 - 0x25f */
0,
/* 0x260 - 0x27f */
0,
/* 0x280 - 0x29f */
SET(WM_IME_CHAR),
/* 0x2a0 - 0x2bf */
0,
/* 0x2c0 - 0x2df */
0,
/* 0x2e0 - 0x2ff */
0,
/* 0x300 - 0x31f */
SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
};
/* check whether a given message type includes pointers */
inline static int is_pointer_message( UINT message )
{
if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
return (message_pointer_flags[message / 32] & SET(message)) != 0;
}
/* check whether a given message type contains Unicode (or ASCII) chars */
inline static int is_unicode_message( UINT message )
{
if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
return (message_unicode_flags[message / 32] & SET(message)) != 0;
}
#undef SET
/* add a data field to a packed message */
inline static void push_data( struct packed_message *data, const void *ptr, size_t size )
{
data->data[data->count] = ptr;
data->size[data->count] = size;
data->count++;
}
/* add a string to a packed message */
inline static void push_string( struct packed_message *data, LPCWSTR str )
{
push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
}
/* retrieve a pointer to data from a packed message and increment the buffer pointer */
inline static void *get_data( void **buffer, size_t size )
{
void *ret = *buffer;
*buffer = (char *)*buffer + size;
return ret;
}
/* make sure that the buffer contains a valid null-terminated Unicode string */
inline static BOOL check_string( LPCWSTR str, size_t size )
{
for (size /= sizeof(WCHAR); size; size--, str++)
if (!*str) return TRUE;
return FALSE;
}
/* make sure that there is space for 'size' bytes in buffer, growing it if needed */
inline static void *get_buffer_space( void **buffer, size_t size )
{
void *ret;
if (*buffer)
{
if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
HeapFree( GetProcessHeap(), 0, *buffer );
}
else ret = HeapAlloc( GetProcessHeap(), 0, size );
*buffer = ret;
return ret;
}
/* retrieve a string pointer from packed data */
inline static LPWSTR get_string( void **buffer )
{
return get_data( buffer, (strlenW( (LPWSTR)*buffer ) + 1) * sizeof(WCHAR) );
}
/* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
inline static BOOL combobox_has_strings( HWND hwnd )
{
DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
}
/* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
inline static BOOL listbox_has_strings( HWND hwnd )
{
DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
}
/***********************************************************************
* broadcast_message_callback
*
* Helper callback for broadcasting messages.
*/
static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
{
struct send_message_info *info = (struct send_message_info *)lparam;
if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
switch(info->type)
{
case MSG_UNICODE:
SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
info->flags, info->timeout, NULL );
break;
case MSG_ASCII:
SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
info->flags, info->timeout, NULL );
break;
case MSG_NOTIFY:
SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
break;
case MSG_CALLBACK:
SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
info->callback, info->data );
break;
case MSG_POSTED:
PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
break;
default:
ERR( "bad type %d\n", info->type );
break;
}
return TRUE;
}
/***********************************************************************
* map_wparam_AtoW
*
* Convert the wparam of an ASCII message to Unicode.
*/
static WPARAM map_wparam_AtoW( UINT message, WPARAM wparam )
{
switch(message)
{
case WM_CHARTOITEM:
case EM_SETPASSWORDCHAR:
case WM_CHAR:
case WM_DEADCHAR:
case WM_SYSCHAR:
case WM_SYSDEADCHAR:
case WM_MENUCHAR:
{
char ch = LOWORD(wparam);
WCHAR wch;
MultiByteToWideChar(CP_ACP, 0, &ch, 1, &wch, 1);
wparam = MAKEWPARAM( wch, HIWORD(wparam) );
}
break;
case WM_IME_CHAR:
{
char ch[2];
WCHAR wch;
ch[0] = (wparam >> 8);
ch[1] = (wparam & 0xff);
if (ch[0]) MultiByteToWideChar(CP_ACP, 0, ch, 2, &wch, 1);
else MultiByteToWideChar(CP_ACP, 0, &ch[1], 1, &wch, 1);
wparam = MAKEWPARAM( wch, HIWORD(wparam) );
}
break;
}
return wparam;
}
/***********************************************************************
* map_wparam_WtoA
*
* Convert the wparam of a Unicode message to ASCII.
*/
static WPARAM map_wparam_WtoA( UINT message, WPARAM wparam )
{
switch(message)
{
case WM_CHARTOITEM:
case EM_SETPASSWORDCHAR:
case WM_CHAR:
case WM_DEADCHAR:
case WM_SYSCHAR:
case WM_SYSDEADCHAR:
case WM_MENUCHAR:
{
WCHAR wch = LOWORD(wparam);
BYTE ch;
WideCharToMultiByte( CP_ACP, 0, &wch, 1, &ch, 1, NULL, NULL );
wparam = MAKEWPARAM( ch, HIWORD(wparam) );
}
break;
case WM_IME_CHAR:
{
WCHAR wch = LOWORD(wparam);
BYTE ch[2];
if (WideCharToMultiByte( CP_ACP, 0, &wch, 1, ch, 2, NULL, NULL ) == 2)
wparam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(wparam) );
else
wparam = MAKEWPARAM( ch[0], HIWORD(wparam) );
}
break;
}
return wparam;
}
/***********************************************************************
* pack_message
*
* Pack a message for sending to another process.
* Return the size of the data we expect in the message reply.
* Set data->count to -1 if there is an error.
*/
static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
struct packed_message *data )
{
data->count = 0;
switch(message)
{
case WM_NCCREATE:
case WM_CREATE:
{
CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
push_data( data, cs, sizeof(*cs) );
if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
return sizeof(*cs);
}
case WM_GETTEXT:
case WM_ASKCBFORMATNAME:
return wparam * sizeof(WCHAR);
case WM_WININICHANGE:
if (lparam) push_string(data, (LPWSTR)lparam );
return 0;
case WM_SETTEXT:
case WM_DEVMODECHANGE:
case CB_DIR:
case LB_DIR:
case LB_ADDFILE:
case EM_REPLACESEL:
push_string( data, (LPWSTR)lparam );
return 0;
case WM_GETMINMAXINFO:
push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
return sizeof(MINMAXINFO);
case WM_DRAWITEM:
push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
return 0;
case WM_MEASUREITEM:
push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
return sizeof(MEASUREITEMSTRUCT);
case WM_DELETEITEM:
push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
return 0;
case WM_COMPAREITEM:
push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
return 0;
case WM_WINDOWPOSCHANGING:
case WM_WINDOWPOSCHANGED:
push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
return sizeof(WINDOWPOS);
case WM_COPYDATA:
{
COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
push_data( data, cp, sizeof(*cp) );
if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
return 0;
}
case WM_NOTIFY:
/* WM_NOTIFY cannot be sent across processes (MSDN) */
data->count = -1;
return 0;
case WM_HELP:
push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
return 0;
case WM_STYLECHANGING:
case WM_STYLECHANGED:
push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
return 0;
case WM_NCCALCSIZE:
if (!wparam)
{
push_data( data, (RECT *)lparam, sizeof(RECT) );
return sizeof(RECT);
}
else
{
NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
push_data( data, nc, sizeof(*nc) );
push_data( data, nc->lppos, sizeof(*nc->lppos) );
return sizeof(*nc) + sizeof(*nc->lppos);
}
case WM_GETDLGCODE:
if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
return sizeof(MSG);
case SBM_SETSCROLLINFO:
push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
return 0;
case SBM_GETSCROLLINFO:
push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
return sizeof(SCROLLINFO);
case EM_GETSEL:
case SBM_GETRANGE:
case CB_GETEDITSEL:
{
size_t size = 0;
if (wparam) size += sizeof(DWORD);
if (lparam) size += sizeof(DWORD);
return size;
}
case EM_GETRECT:
case LB_GETITEMRECT:
case CB_GETDROPPEDCONTROLRECT:
return sizeof(RECT);
case EM_SETRECT:
case EM_SETRECTNP:
push_data( data, (RECT *)lparam, sizeof(RECT) );
return 0;
case EM_GETLINE:
{
WORD *pw = (WORD *)lparam;
push_data( data, pw, sizeof(*pw) );
return *pw * sizeof(WCHAR);
}
case EM_SETTABSTOPS:
case LB_SETTABSTOPS:
if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
return 0;
case CB_ADDSTRING:
case CB_INSERTSTRING:
case CB_FINDSTRING:
case CB_FINDSTRINGEXACT:
case CB_SELECTSTRING:
if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
return 0;
case CB_GETLBTEXT:
if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
case LB_ADDSTRING:
case LB_INSERTSTRING:
case LB_FINDSTRING:
case LB_FINDSTRINGEXACT:
case LB_SELECTSTRING:
if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
return 0;
case LB_GETTEXT:
if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
case LB_GETSELITEMS:
return wparam * sizeof(UINT);
case WM_NEXTMENU:
push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
return sizeof(MDINEXTMENU);
case WM_SIZING:
case WM_MOVING:
push_data( data, (RECT *)lparam, sizeof(RECT) );
return sizeof(RECT);
case WM_MDICREATE:
{
MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
push_data( data, cs, sizeof(*cs) );
if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
return sizeof(*cs);
}
case WM_MDIGETACTIVE:
if (lparam) return sizeof(BOOL);
return 0;
case WM_WINE_SETWINDOWPOS:
push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
return 0;
case WM_WINE_KEYBOARD_LL_HOOK:
push_data( data, (KBDLLHOOKSTRUCT *)lparam, sizeof(KBDLLHOOKSTRUCT) );
return 0;
case WM_WINE_MOUSE_LL_HOOK:
push_data( data, (MSLLHOOKSTRUCT *)lparam, sizeof(MSLLHOOKSTRUCT) );
return 0;
/* these contain an HFONT */
case WM_SETFONT:
case WM_GETFONT:
/* these contain an HDC */
case WM_PAINT:
case WM_ERASEBKGND:
case WM_ICONERASEBKGND:
case WM_NCPAINT:
case WM_CTLCOLORMSGBOX:
case WM_CTLCOLOREDIT:
case WM_CTLCOLORLISTBOX:
case WM_CTLCOLORBTN:
case WM_CTLCOLORDLG:
case WM_CTLCOLORSCROLLBAR:
case WM_CTLCOLORSTATIC:
case WM_PRINT:
case WM_PRINTCLIENT:
/* these contain an HGLOBAL */
case WM_PAINTCLIPBOARD:
case WM_SIZECLIPBOARD:
/* these contain HICON */
case WM_GETICON:
case WM_SETICON:
case WM_QUERYDRAGICON:
case WM_QUERYPARKICON:
/* these contain pointers */
case WM_DROPOBJECT:
case WM_QUERYDROPOBJECT:
case WM_DRAGLOOP:
case WM_DRAGSELECT:
case WM_DRAGMOVE:
case WM_DEVICECHANGE:
FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
data->count = -1;
return 0;
}
return 0;
}
/***********************************************************************
* unpack_message
*
* Unpack a message received from another process.
*/
static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
void **buffer, size_t size )
{
size_t minsize = 0;
switch(message)
{
case WM_NCCREATE:
case WM_CREATE:
{
CREATESTRUCTW *cs = *buffer;
WCHAR *str = (WCHAR *)(cs + 1);
if (size < sizeof(*cs)) return FALSE;
size -= sizeof(*cs);
if (HIWORD(cs->lpszName))
{
if (!check_string( str, size )) return FALSE;
cs->lpszName = str;
size -= (strlenW(str) + 1) * sizeof(WCHAR);
str += strlenW(str) + 1;
}
if (HIWORD(cs->lpszClass))
{
if (!check_string( str, size )) return FALSE;
cs->lpszClass = str;
}
break;
}
case WM_GETTEXT:
case WM_ASKCBFORMATNAME:
if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
break;
case WM_WININICHANGE:
if (!*lparam) return TRUE;
/* fall through */
case WM_SETTEXT:
case WM_DEVMODECHANGE:
case CB_DIR:
case LB_DIR:
case LB_ADDFILE:
case EM_REPLACESEL:
if (!check_string( *buffer, size )) return FALSE;
break;
case WM_GETMINMAXINFO:
minsize = sizeof(MINMAXINFO);
break;
case WM_DRAWITEM:
minsize = sizeof(DRAWITEMSTRUCT);
break;
case WM_MEASUREITEM:
minsize = sizeof(MEASUREITEMSTRUCT);
break;
case WM_DELETEITEM:
minsize = sizeof(DELETEITEMSTRUCT);
break;
case WM_COMPAREITEM:
minsize = sizeof(COMPAREITEMSTRUCT);
break;
case WM_WINDOWPOSCHANGING:
case WM_WINDOWPOSCHANGED:
case WM_WINE_SETWINDOWPOS:
minsize = sizeof(WINDOWPOS);
break;
case WM_COPYDATA:
{
COPYDATASTRUCT *cp = *buffer;
if (size < sizeof(*cp)) return FALSE;
if (cp->lpData)
{
minsize = sizeof(*cp) + cp->cbData;
cp->lpData = cp + 1;
}
break;
}
case WM_NOTIFY:
/* WM_NOTIFY cannot be sent across processes (MSDN) */
return FALSE;
case WM_HELP:
minsize = sizeof(HELPINFO);
break;
case WM_STYLECHANGING:
case WM_STYLECHANGED:
minsize = sizeof(STYLESTRUCT);
break;
case WM_NCCALCSIZE:
if (!*wparam) minsize = sizeof(RECT);
else
{
NCCALCSIZE_PARAMS *nc = *buffer;
if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
nc->lppos = (WINDOWPOS *)(nc + 1);
}
break;
case WM_GETDLGCODE:
if (!*lparam) return TRUE;
minsize = sizeof(MSG);
break;
case SBM_SETSCROLLINFO:
minsize = sizeof(SCROLLINFO);
break;
case SBM_GETSCROLLINFO:
if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
break;
case EM_GETSEL:
case SBM_GETRANGE:
case CB_GETEDITSEL:
if (*wparam || *lparam)
{
if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
if (*wparam) *wparam = (WPARAM)*buffer;
if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
}
return TRUE;
case EM_GETRECT:
case LB_GETITEMRECT:
case CB_GETDROPPEDCONTROLRECT:
if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
break;
case EM_SETRECT:
case EM_SETRECTNP:
minsize = sizeof(RECT);
break;
case EM_GETLINE:
{
WORD len;
if (size < sizeof(WORD)) return FALSE;
len = *(WORD *)*buffer;
if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
*lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
return TRUE;
}
case EM_SETTABSTOPS:
case LB_SETTABSTOPS:
if (!*wparam) return TRUE;
minsize = *wparam * sizeof(UINT);
break;
case CB_ADDSTRING:
case CB_INSERTSTRING:
case CB_FINDSTRING:
case CB_FINDSTRINGEXACT:
case CB_SELECTSTRING:
case LB_ADDSTRING:
case LB_INSERTSTRING:
case LB_FINDSTRING:
case LB_FINDSTRINGEXACT:
case LB_SELECTSTRING:
if (!*buffer) return TRUE;
if (!check_string( *buffer, size )) return FALSE;
break;
case CB_GETLBTEXT:
{
size = sizeof(ULONG_PTR);
if (combobox_has_strings( hwnd ))
size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
if (!get_buffer_space( buffer, size )) return FALSE;
break;
}
case LB_GETTEXT:
{
size = sizeof(ULONG_PTR);
if (listbox_has_strings( hwnd ))
size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
if (!get_buffer_space( buffer, size )) return FALSE;
break;
}
case LB_GETSELITEMS:
if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
break;
case WM_NEXTMENU:
minsize = sizeof(MDINEXTMENU);
if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
break;
case WM_SIZING:
case WM_MOVING:
minsize = sizeof(RECT);
if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
break;
case WM_MDICREATE:
{
MDICREATESTRUCTW *cs = *buffer;
WCHAR *str = (WCHAR *)(cs + 1);
if (size < sizeof(*cs)) return FALSE;
size -= sizeof(*cs);
if (HIWORD(cs->szTitle))
{
if (!check_string( str, size )) return FALSE;
cs->szTitle = str;
size -= (strlenW(str) + 1) * sizeof(WCHAR);
str += strlenW(str) + 1;
}
if (HIWORD(cs->szClass))
{
if (!check_string( str, size )) return FALSE;
cs->szClass = str;
}
break;
}
case WM_MDIGETACTIVE:
if (!*lparam) return TRUE;
if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
break;
case WM_WINE_KEYBOARD_LL_HOOK:
minsize = sizeof(KBDLLHOOKSTRUCT);
break;
case WM_WINE_MOUSE_LL_HOOK:
minsize = sizeof(MSLLHOOKSTRUCT);
break;
/* these contain an HFONT */
case WM_SETFONT:
case WM_GETFONT:
/* these contain an HDC */
case WM_PAINT:
case WM_ERASEBKGND:
case WM_ICONERASEBKGND:
case WM_NCPAINT:
case WM_CTLCOLORMSGBOX:
case WM_CTLCOLOREDIT:
case WM_CTLCOLORLISTBOX:
case WM_CTLCOLORBTN:
case WM_CTLCOLORDLG:
case WM_CTLCOLORSCROLLBAR:
case WM_CTLCOLORSTATIC:
case WM_PRINT:
case WM_PRINTCLIENT:
/* these contain an HGLOBAL */
case WM_PAINTCLIPBOARD:
case WM_SIZECLIPBOARD:
/* these contain HICON */
case WM_GETICON:
case WM_SETICON:
case WM_QUERYDRAGICON:
case WM_QUERYPARKICON:
/* these contain pointers */
case WM_DROPOBJECT:
case WM_QUERYDROPOBJECT:
case WM_DRAGLOOP:
case WM_DRAGSELECT:
case WM_DRAGMOVE:
case WM_DEVICECHANGE:
FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
return FALSE;
default:
return TRUE; /* message doesn't need any unpacking */
}
/* default exit for most messages: check minsize and store buffer in lparam */
if (size < minsize) return FALSE;
*lparam = (LPARAM)*buffer;
return TRUE;
}
/***********************************************************************
* pack_reply
*
* Pack a reply to a message for sending to another process.
*/
static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
LRESULT res, struct packed_message *data )
{
data->count = 0;
switch(message)
{
case WM_NCCREATE:
case WM_CREATE:
push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
break;
case WM_GETTEXT:
case CB_GETLBTEXT:
case LB_GETTEXT:
push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
break;
case WM_GETMINMAXINFO:
push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
break;
case WM_MEASUREITEM:
push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
break;
case WM_WINDOWPOSCHANGING:
case WM_WINDOWPOSCHANGED:
push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
break;
case WM_GETDLGCODE:
if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
break;
case SBM_GETSCROLLINFO:
push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
break;
case EM_GETRECT:
case LB_GETITEMRECT:
case CB_GETDROPPEDCONTROLRECT:
case WM_SIZING:
case WM_MOVING:
push_data( data, (RECT *)lparam, sizeof(RECT) );
break;
case EM_GETLINE:
{
WORD *ptr = (WORD *)lparam;
push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
break;
}
case LB_GETSELITEMS:
push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
break;
case WM_MDIGETACTIVE:
if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
break;
case WM_NCCALCSIZE:
if (!wparam)
push_data( data, (RECT *)lparam, sizeof(RECT) );
else
{
NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
push_data( data, nc, sizeof(*nc) );
push_data( data, nc->lppos, sizeof(*nc->lppos) );
}
break;
case EM_GETSEL:
case SBM_GETRANGE:
case CB_GETEDITSEL:
if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
break;
case WM_NEXTMENU:
push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
break;
case WM_MDICREATE:
push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
break;
case WM_ASKCBFORMATNAME:
push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
break;
}
}
/***********************************************************************
* unpack_reply
*
* Unpack a message reply received from another process.
*/
static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
void *buffer, size_t size )
{
switch(message)
{
case WM_NCCREATE:
case WM_CREATE:
{
CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
LPCWSTR name = cs->lpszName, class = cs->lpszClass;
memcpy( cs, buffer, min( sizeof(*cs), size ));
cs->lpszName = name; /* restore the original pointers */
cs->lpszClass = class;
break;
}
case WM_GETTEXT:
case WM_ASKCBFORMATNAME:
memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
break;
case WM_GETMINMAXINFO:
memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
break;
case WM_MEASUREITEM:
memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
break;
case WM_WINDOWPOSCHANGING:
case WM_WINDOWPOSCHANGED:
memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
break;
case WM_GETDLGCODE:
if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
break;
case SBM_GETSCROLLINFO:
memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
break;
case EM_GETRECT:
case CB_GETDROPPEDCONTROLRECT:
case LB_GETITEMRECT:
case WM_SIZING:
case WM_MOVING:
memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
break;
case EM_GETLINE:
size = min( size, (size_t)*(WORD *)lparam );
memcpy( (WCHAR *)lparam, buffer, size );
break;
case LB_GETSELITEMS:
memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
break;
case LB_GETTEXT:
case CB_GETLBTEXT:
memcpy( (WCHAR *)lparam, buffer, size );
break;
case WM_NEXTMENU:
memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
break;
case WM_MDIGETACTIVE:
if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
break;
case WM_NCCALCSIZE:
if (!wparam)
memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
else
{
NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
WINDOWPOS *wp = nc->lppos;
memcpy( nc, buffer, min( sizeof(*nc), size ));
if (size > sizeof(*nc))
{
size -= sizeof(*nc);
memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
}
nc->lppos = wp; /* restore the original pointer */
}
break;
case EM_GETSEL:
case SBM_GETRANGE:
case CB_GETEDITSEL:
if (wparam)
{
memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
if (size <= sizeof(DWORD)) break;
size -= sizeof(DWORD);
buffer = (DWORD *)buffer + 1;
}
if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
break;
case WM_MDICREATE:
{
MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
LPCWSTR title = cs->szTitle, class = cs->szClass;
memcpy( cs, buffer, min( sizeof(*cs), size ));
cs->szTitle = title; /* restore the original pointers */
cs->szClass = class;
break;
}
default:
ERR( "should not happen: unexpected message %x\n", message );
break;
}
}
/***********************************************************************
* reply_message
*
* Send a reply to a sent message.
*/
static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
{
struct packed_message data;
int i, replied = info->flags & ISMEX_REPLIED;
if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
if (!remove && replied) return; /* replied already */
data.count = 0;
info->flags |= ISMEX_REPLIED;
if (info->type == MSG_OTHER_PROCESS && !replied)
{
pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
info->msg.lParam, result, &data );
}
SERVER_START_REQ( reply_message )
{
req->type = info->type;
req->result = result;
req->remove = remove;
for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
wine_server_call( req );
}
SERVER_END_REQ;
}
/***********************************************************************
* handle_internal_message
*
* Handle an internal Wine message instead of calling the window proc.
*/
static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
if (hwnd == GetDesktopWindow()) return 0;
switch(msg)
{
case WM_WINE_DESTROYWINDOW:
return WIN_DestroyWindow( hwnd );
case WM_WINE_SETWINDOWPOS:
if (USER_Driver.pSetWindowPos)
return USER_Driver.pSetWindowPos( (WINDOWPOS *)lparam );
return 0;
case WM_WINE_SHOWWINDOW:
return ShowWindow( hwnd, wparam );
case WM_WINE_SETPARENT:
return (LRESULT)SetParent( hwnd, (HWND)wparam );
case WM_WINE_SETWINDOWLONG:
return (LRESULT)SetWindowLongW( hwnd, wparam, lparam );
case WM_WINE_ENABLEWINDOW:
return EnableWindow( hwnd, wparam );
case WM_WINE_SETACTIVEWINDOW:
return (LRESULT)SetActiveWindow( (HWND)wparam );
case WM_WINE_KEYBOARD_LL_HOOK:
return HOOK_CallHooks( WH_KEYBOARD_LL, HC_ACTION, wparam, lparam, TRUE );
case WM_WINE_MOUSE_LL_HOOK:
return HOOK_CallHooks( WH_MOUSE_LL, HC_ACTION, wparam, lparam, TRUE );
default:
FIXME( "unknown internal message %x\n", msg );
return 0;
}
}
/* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
* to the memory handle, we keep track (in the server side) of all pairs of handle
* used (the client passes its value and the content of the memory handle), and
* the server stored both values (the client, and the local one, created after the
* content). When a ACK message is generated, the list of pair is searched for a
* matching pair, so that the client memory handle can be returned.
*/
struct DDE_pair {
HGLOBAL client_hMem;
HGLOBAL server_hMem;
};
static struct DDE_pair* dde_pairs;
static int dde_num_alloc;
static int dde_num_used;
static CRITICAL_SECTION dde_crst;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &dde_crst,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { 0, (DWORD)(__FILE__ ": dde_crst") }
};
static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
{
int i;
#define GROWBY 4
EnterCriticalSection(&dde_crst);
/* now remember the pair of hMem on both sides */
if (dde_num_used == dde_num_alloc)
{
struct DDE_pair* tmp;
if (dde_pairs)
tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
(dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
else
tmp = HeapAlloc( GetProcessHeap(), 0,
(dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
if (!tmp)
{
LeaveCriticalSection(&dde_crst);
return FALSE;
}
dde_pairs = tmp;
/* zero out newly allocated part */
memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
dde_num_alloc += GROWBY;
}
#undef GROWBY
for (i = 0; i < dde_num_alloc; i++)
{
if (dde_pairs[i].server_hMem == 0)
{
dde_pairs[i].client_hMem = chm;
dde_pairs[i].server_hMem = shm;
dde_num_used++;
break;
}
}
LeaveCriticalSection(&dde_crst);
return TRUE;
}
static HGLOBAL dde_get_pair(HGLOBAL shm)
{
int i;
HGLOBAL ret = 0;
EnterCriticalSection(&dde_crst);
for (i = 0; i < dde_num_alloc; i++)
{
if (dde_pairs[i].server_hMem == shm)
{
/* free this pair */
dde_pairs[i].server_hMem = 0;
dde_num_used--;
ret = dde_pairs[i].client_hMem;
break;
}
}
LeaveCriticalSection(&dde_crst);
return ret;
}
/***********************************************************************
* post_dde_message
*
* Post a DDE message
*/
static BOOL post_dde_message( DWORD dest_tid, struct packed_message *data, const struct send_message_info *info )
{
void* ptr = NULL;
int size = 0;
UINT uiLo, uiHi;
LPARAM lp = 0;
HGLOBAL hunlock = 0;
int i;
DWORD res;
if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
return FALSE;
lp = info->lparam;
switch (info->msg)
{
/* DDE messages which don't require packing are:
* WM_DDE_INITIATE
* WM_DDE_TERMINATE
* WM_DDE_REQUEST
* WM_DDE_UNADVISE
*/
case WM_DDE_ACK:
if (HIWORD(uiHi))
{
/* uiHi should contain a hMem from WM_DDE_EXECUTE */
HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
if (h)
{
/* send back the value of h on the other side */
push_data( data, &h, sizeof(HGLOBAL) );
lp = uiLo;
TRACE( "send dde-ack %x %08x => %08lx\n", uiLo, uiHi, (DWORD)h );
}
}
else
{
/* uiHi should contain either an atom or 0 */
TRACE( "send dde-ack %x atom=%x\n", uiLo, uiHi );
lp = MAKELONG( uiLo, uiHi );
}
break;
case WM_DDE_ADVISE:
case WM_DDE_DATA:
case WM_DDE_POKE:
size = 0;
if (uiLo)
{
size = GlobalSize( (HGLOBAL)uiLo ) ;
if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
(info->msg == WM_DDE_DATA && size < sizeof(DDEDATA)) ||
(info->msg == WM_DDE_POKE && size < sizeof(DDEPOKE))
)
return FALSE;
}
else if (info->msg != WM_DDE_DATA) return FALSE;
lp = uiHi;
if (uiLo)
{
if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
{
DDEDATA *dde_data = (DDEDATA *)ptr;
TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
dde_data->unused, dde_data->fResponse, dde_data->fRelease,
dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
push_data( data, ptr, size );
hunlock = (HGLOBAL)uiLo;
}
}
TRACE( "send ddepack %u %x\n", size, uiHi );
break;
case WM_DDE_EXECUTE:
if (info->lparam)
{
if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
{
push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
/* so that the other side can send it back on ACK */
lp = info->lparam;
hunlock = (HGLOBAL)info->lparam;
}
}
break;
}
SERVER_START_REQ( send_message )
{
req->id = dest_tid;
req->type = info->type;
req->flags = 0;
req->win = info->hwnd;
req->msg = info->msg;
req->wparam = info->wparam;
req->lparam = lp;
req->time = GetCurrentTime();
req->timeout = -1;
for (i = 0; i < data->count; i++)
wine_server_add_data( req, data->data[i], data->size[i] );
if ((res = wine_server_call( req )))
{
if (res == STATUS_INVALID_PARAMETER)
/* FIXME: find a STATUS_ value for this one */
SetLastError( ERROR_INVALID_THREAD_ID );
else
SetLastError( RtlNtStatusToDosError(res) );
}
else
FreeDDElParam(info->msg, info->lparam);
}
SERVER_END_REQ;
if (hunlock) GlobalUnlock(hunlock);
return !res;
}
/***********************************************************************
* unpack_dde_message
*
* Unpack a posted DDE message received from another process.
*/
static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
void **buffer, size_t size )
{
UINT uiLo, uiHi;
HGLOBAL hMem = 0;
void* ptr;
switch (message)
{
case WM_DDE_ACK:
if (size)
{
/* hMem is being passed */
if (size != sizeof(HGLOBAL)) return FALSE;
if (!buffer || !*buffer) return FALSE;
uiLo = *lparam;
memcpy( &hMem, *buffer, size );
uiHi = (UINT)hMem;
TRACE("recv dde-ack %x mem=%x[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
}
else
{
uiLo = LOWORD( *lparam );
uiHi = HIWORD( *lparam );
TRACE("recv dde-ack %x atom=%x\n", uiLo, uiHi);
}
*lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
break;
case WM_DDE_ADVISE:
case WM_DDE_DATA:
case WM_DDE_POKE:
if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
uiHi = *lparam;
TRACE( "recv ddepack %u %x\n", size, uiHi );
if (size)
{
hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size );
if (hMem && (ptr = GlobalLock( hMem )))
{
memcpy( ptr, *buffer, size );
GlobalUnlock( hMem );
}
else return FALSE;
}
uiLo = (UINT)hMem;
*lparam = PackDDElParam( message, uiLo, uiHi );
break;
case WM_DDE_EXECUTE:
if (size)
{
if (!buffer || !*buffer) return FALSE;
hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size );
if (hMem && (ptr = GlobalLock( hMem )))
{
memcpy( ptr, *buffer, size );
GlobalUnlock( hMem );
TRACE( "exec: pairing c=%08lx s=%08lx\n", *lparam, (DWORD)hMem );
if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
{
GlobalFree( hMem );
return FALSE;
}
}
} else return FALSE;
*lparam = (LPARAM)hMem;
break;
}
return TRUE;
}
/***********************************************************************
* call_window_proc
*
* Call a window procedure and the corresponding hooks.
*/
static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
BOOL unicode, BOOL same_thread )
{
LRESULT result = 0;
WNDPROC winproc;
CWPSTRUCT cwp;
CWPRETSTRUCT cwpret;
MESSAGEQUEUE *queue = QUEUE_Current();
if (queue->recursion_count > MAX_SENDMSG_RECURSION) return 0;
queue->recursion_count++;
if (msg & 0x80000000)
{
result = handle_internal_message( hwnd, msg, wparam, lparam );
goto done;
}
/* first the WH_CALLWNDPROC hook */
hwnd = WIN_GetFullHandle( hwnd );
cwp.lParam = lparam;
cwp.wParam = wparam;
cwp.message = msg;
cwp.hwnd = hwnd;
HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
/* now call the window procedure */
if (unicode)
{
if (!(winproc = (WNDPROC)GetWindowLongPtrW( hwnd, GWLP_WNDPROC ))) goto done;
result = CallWindowProcW( winproc, hwnd, msg, wparam, lparam );
}
else
{
if (!(winproc = (WNDPROC)GetWindowLongPtrA( hwnd, GWLP_WNDPROC ))) goto done;
result = CallWindowProcA( winproc, hwnd, msg, wparam, lparam );
}
/* and finally the WH_CALLWNDPROCRET hook */
cwpret.lResult = result;
cwpret.lParam = lparam;
cwpret.wParam = wparam;
cwpret.message = msg;
cwpret.hwnd = hwnd;
HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
done:
queue->recursion_count--;
return result;
}
/***********************************************************************
* process_hardware_message
*
* Process a hardware message; return TRUE if message should be passed on to the app
*/
static BOOL process_hardware_message( MSG *msg, ULONG_PTR extra_info, HWND hwnd,
UINT first, UINT last, BOOL remove )
{
BOOL ret;
if (!MSG_process_raw_hardware_message( msg, extra_info, hwnd, first, last, remove ))
return FALSE;
ret = MSG_process_cooked_hardware_message( msg, extra_info, remove );
/* tell the server we have passed it to the app
* (even though we may end up dropping it later on)
*/
SERVER_START_REQ( reply_message )
{
req->type = MSG_HARDWARE;
req->result = 0;
req->remove = remove || !ret;
wine_server_call( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* call_sendmsg_callback
*
* Call the callback function of SendMessageCallback.
*/
static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
ULONG_PTR data, LRESULT result )
{
if (TRACE_ON(relay))
DPRINTF( "%04lx:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
data, result );
callback( hwnd, msg, data, result );
if (TRACE_ON(relay))
DPRINTF( "%04lx:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
data, result );
}
/***********************************************************************
* MSG_peek_message
*
* Peek for a message matching the given parameters. Return FALSE if none available.
* All pending sent messages are processed before returning.
*/
BOOL MSG_peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, int flags )
{
LRESULT result;
ULONG_PTR extra_info = 0;
MESSAGEQUEUE *queue = QUEUE_Current();
struct received_message_info info, *old_info;
if (!first && !last) last = ~0;
for (;;)
{
NTSTATUS res;
void *buffer = NULL;
size_t size = 0, buffer_size = 0;
do /* loop while buffer is too small */
{
if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
return FALSE;
SERVER_START_REQ( get_message )
{
req->flags = flags;
req->get_win = hwnd;
req->get_first = first;
req->get_last = last;
if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
if (!(res = wine_server_call( req )))
{
size = wine_server_reply_size( reply );
info.type = reply->type;
info.msg.hwnd = reply->win;
info.msg.message = reply->msg;
info.msg.wParam = reply->wparam;
info.msg.lParam = reply->lparam;
info.msg.time = reply->time;
info.msg.pt.x = reply->x;
info.msg.pt.y = reply->y;
extra_info = reply->info;
}
else
{
if (buffer) HeapFree( GetProcessHeap(), 0, buffer );
buffer_size = reply->total;
}
}
SERVER_END_REQ;
} while (res == STATUS_BUFFER_OVERFLOW);
if (res) return FALSE;
TRACE( "got type %d msg %x (%s) hwnd %p wp %x lp %lx\n",
info.type, info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd),
info.msg.hwnd, info.msg.wParam, info.msg.lParam );
switch(info.type)
{
case MSG_ASCII:
case MSG_UNICODE:
info.flags = ISMEX_SEND;
break;
case MSG_NOTIFY:
info.flags = ISMEX_NOTIFY;
break;
case MSG_CALLBACK:
info.flags = ISMEX_CALLBACK;
break;
case MSG_CALLBACK_RESULT:
call_sendmsg_callback( (SENDASYNCPROC)info.msg.wParam, info.msg.hwnd,
info.msg.message, extra_info, info.msg.lParam );
goto next;
case MSG_OTHER_PROCESS:
info.flags = ISMEX_SEND;
if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
&info.msg.lParam, &buffer, size ))
{
ERR( "invalid packed message %x (%s) hwnd %p wp %x lp %lx size %d\n",
info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd), info.msg.hwnd,
info.msg.wParam, info.msg.lParam, size );
/* ignore it */
reply_message( &info, 0, TRUE );
goto next;
}
break;
case MSG_HARDWARE:
if (!process_hardware_message( &info.msg, extra_info,
hwnd, first, last, flags & GET_MSG_REMOVE ))
{
TRACE("dropping msg %x\n", info.msg.message );
goto next; /* ignore it */
}
queue->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
/* fall through */
case MSG_POSTED:
queue->GetMessageExtraInfoVal = extra_info;
if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
{
if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
&info.msg.lParam, &buffer, size ))
{
ERR( "invalid packed dde-message %x (%s) hwnd %p wp %x lp %lx size %d\n",
info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd),
info.msg.hwnd, info.msg.wParam, info.msg.lParam, size );
goto next; /* ignore it */
}
}
*msg = info.msg;
if (buffer) HeapFree( GetProcessHeap(), 0, buffer );
return TRUE;
}
/* if we get here, we have a sent message; call the window procedure */
old_info = queue->receive_info;
queue->receive_info = &info;
result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
info.msg.lParam, (info.type != MSG_ASCII), FALSE );
reply_message( &info, result, TRUE );
queue->receive_info = old_info;
next:
if (buffer) HeapFree( GetProcessHeap(), 0, buffer );
}
}
/***********************************************************************
* wait_message_reply
*
* Wait until a sent message gets replied to.
*/
static void wait_message_reply( UINT flags )
{
MESSAGEQUEUE *queue;
if (!(queue = QUEUE_Current())) return;
for (;;)
{
unsigned int wake_bits = 0, changed_bits = 0;
DWORD dwlc, res;
SERVER_START_REQ( set_queue_mask )
{
req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
req->changed_mask = req->wake_mask;
req->skip_wait = 1;
if (!wine_server_call( req ))
{
wake_bits = reply->wake_bits;
changed_bits = reply->changed_bits;
}
}
SERVER_END_REQ;
if (wake_bits & QS_SMRESULT) return; /* got a result */
if (wake_bits & QS_SENDMESSAGE)
{
/* Process the sent message immediately */
MSG msg;
MSG_peek_message( &msg, 0, 0, 0, GET_MSG_REMOVE | GET_MSG_SENT_ONLY );
continue;
}
/* now wait for it */
ReleaseThunkLock( &dwlc );
if (USER_Driver.pMsgWaitForMultipleObjectsEx)
res = USER_Driver.pMsgWaitForMultipleObjectsEx( 1, &queue->server_queue,
INFINITE, 0, 0 );
else
res = WaitForSingleObject( queue->server_queue, INFINITE );
if (dwlc) RestoreThunkLock( dwlc );
}
}
/***********************************************************************
* put_message_in_queue
*
* Put a sent message into the destination queue.
* For inter-process message, reply_size is set to expected size of reply data.
*/
static BOOL put_message_in_queue( DWORD dest_tid, const struct send_message_info *info,
size_t *reply_size )
{
struct packed_message data;
unsigned int res;
int i, timeout = -1;
if (info->type != MSG_NOTIFY &&
info->type != MSG_CALLBACK &&
info->type != MSG_POSTED &&
info->timeout != INFINITE)
timeout = info->timeout;
data.count = 0;
if (info->type == MSG_OTHER_PROCESS)
{
*reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
if (data.count == -1)
{
WARN( "cannot pack message %x\n", info->msg );
return FALSE;
}
}
else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
{
return post_dde_message( dest_tid, &data, info );
}
SERVER_START_REQ( send_message )
{
req->id = dest_tid;
req->type = info->type;
req->flags = 0;
req->win = info->hwnd;
req->msg = info->msg;
req->wparam = info->wparam;
req->lparam = info->lparam;
req->time = GetCurrentTime();
req->timeout = timeout;
if (info->type == MSG_CALLBACK)
{
req->callback = info->callback;
req->info = info->data;
}
if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
if ((res = wine_server_call( req )))
{
if (res == STATUS_INVALID_PARAMETER)
/* FIXME: find a STATUS_ value for this one */
SetLastError( ERROR_INVALID_THREAD_ID );
else
SetLastError( RtlNtStatusToDosError(res) );
}
}
SERVER_END_REQ;
return !res;
}
/***********************************************************************
* retrieve_reply
*
* Retrieve a message reply from the server.
*/
static LRESULT retrieve_reply( const struct send_message_info *info,
size_t reply_size, LRESULT *result )
{
NTSTATUS status;
void *reply_data = NULL;
if (reply_size)
{
if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
{
WARN( "no memory for reply %d bytes, will be truncated\n", reply_size );
reply_size = 0;
}
}
SERVER_START_REQ( get_message_reply )
{
req->cancel = 1;
if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
if (!(status = wine_server_call( req ))) *result = reply->result;
reply_size = wine_server_reply_size( reply );
}
SERVER_END_REQ;
if (!status && reply_size)
unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
if (reply_data) HeapFree( GetProcessHeap(), 0, reply_data );
TRACE( "hwnd %p msg %x (%s) wp %x lp %lx got reply %lx (err=%ld)\n",
info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
info->lparam, *result, status );
/* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/***********************************************************************
* send_inter_thread_message
*/
static LRESULT send_inter_thread_message( DWORD dest_tid, const struct send_message_info *info,
LRESULT *res_ptr )
{
LRESULT ret;
int locks;
size_t reply_size = 0;
TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
if (!put_message_in_queue( dest_tid, info, &reply_size )) return 0;
/* there's no reply to wait for on notify/callback messages */
if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
locks = WIN_SuspendWndsLock();
wait_message_reply( info->flags );
ret = retrieve_reply( info, reply_size, res_ptr );
WIN_RestoreWndsLock( locks );
return ret;
}
/***********************************************************************
* MSG_SendInternalMessageTimeout
*
* Same as SendMessageTimeoutW but sends the message to a specific thread
* without requiring a window handle. Only works for internal Wine messages.
*/
LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
UINT msg, WPARAM wparam, LPARAM lparam,
UINT flags, UINT timeout, PDWORD_PTR res_ptr )
{
struct send_message_info info;
LRESULT ret, result;
assert( msg & 0x80000000 ); /* must be an internal Wine message */
info.type = MSG_UNICODE;
info.hwnd = 0;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = flags;
info.timeout = timeout;
if (USER_IsExitingThread( dest_tid )) return 0;
if (dest_tid == GetCurrentThreadId())
{
result = handle_internal_message( 0, msg, wparam, lparam );
ret = 1;
}
else
{
if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
ret = send_inter_thread_message( dest_tid, &info, &result );
}
if (ret && res_ptr) *res_ptr = result;
return ret;
}
/***********************************************************************
* SendMessageTimeoutW (USER32.@)
*/
LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
UINT flags, UINT timeout, PDWORD_PTR res_ptr )
{
struct send_message_info info;
DWORD dest_tid, dest_pid;
LRESULT ret, result;
info.type = MSG_UNICODE;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = flags;
info.timeout = timeout;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
if (res_ptr) *res_ptr = 1;
return 1;
}
if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
if (USER_IsExitingThread( dest_tid )) return 0;
SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
if (dest_tid == GetCurrentThreadId())
{
result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
ret = 1;
}
else
{
if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
ret = send_inter_thread_message( dest_tid, &info, &result );
}
SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
if (ret && res_ptr) *res_ptr = result;
return ret;
}
/***********************************************************************
* SendMessageTimeoutA (USER32.@)
*/
LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
UINT flags, UINT timeout, PDWORD_PTR res_ptr )
{
struct send_message_info info;
DWORD dest_tid, dest_pid;
LRESULT ret, result;
info.type = MSG_ASCII;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = flags;
info.timeout = timeout;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
if (res_ptr) *res_ptr = 1;
return 1;
}
if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
if (USER_IsExitingThread( dest_tid )) return 0;
SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
if (dest_tid == GetCurrentThreadId())
{
result = call_window_proc( hwnd, msg, wparam, lparam, FALSE, TRUE );
ret = 1;
}
else if (dest_pid == GetCurrentProcessId())
{
ret = send_inter_thread_message( dest_tid, &info, &result );
}
else
{
/* inter-process message: need to map to Unicode */
info.type = MSG_OTHER_PROCESS;
if (is_unicode_message( info.msg ))
{
if (WINPROC_MapMsg32ATo32W( info.hwnd, info.msg, &info.wparam, &info.lparam ) == -1)
return 0;
ret = send_inter_thread_message( dest_tid, &info, &result );
result = WINPROC_UnmapMsg32ATo32W( info.hwnd, info.msg, info.wparam,
info.lparam, result );
}
else ret = send_inter_thread_message( dest_tid, &info, &result );
}
SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
if (ret && res_ptr) *res_ptr = result;
return ret;
}
/***********************************************************************
* SendMessageW (USER32.@)
*/
LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
LRESULT res = 0;
SendMessageTimeoutW( hwnd, msg, wparam, lparam, SMTO_NORMAL, INFINITE, &res );
return res;
}
/***********************************************************************
* SendMessageA (USER32.@)
*/
LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
LRESULT res = 0;
SendMessageTimeoutA( hwnd, msg, wparam, lparam, SMTO_NORMAL, INFINITE, &res );
return res;
}
/***********************************************************************
* SendNotifyMessageA (USER32.@)
*/
BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return SendNotifyMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
}
/***********************************************************************
* SendNotifyMessageW (USER32.@)
*/
BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
struct send_message_info info;
DWORD dest_tid;
LRESULT result;
if (is_pointer_message(msg))
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
return FALSE;
}
info.type = MSG_NOTIFY;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = 0;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
return TRUE;
}
if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
if (USER_IsExitingThread( dest_tid )) return TRUE;
if (dest_tid == GetCurrentThreadId())
{
call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
return TRUE;
}
return send_inter_thread_message( dest_tid, &info, &result );
}
/***********************************************************************
* SendMessageCallbackA (USER32.@)
*/
BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
SENDASYNCPROC callback, ULONG_PTR data )
{
return SendMessageCallbackW( hwnd, msg, map_wparam_AtoW( msg, wparam ),
lparam, callback, data );
}
/***********************************************************************
* SendMessageCallbackW (USER32.@)
*/
BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
SENDASYNCPROC callback, ULONG_PTR data )
{
struct send_message_info info;
LRESULT result;
DWORD dest_tid;
if (is_pointer_message(msg))
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
return FALSE;
}
info.type = MSG_CALLBACK;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.callback = callback;
info.data = data;
info.flags = 0;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
return TRUE;
}
if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
if (USER_IsExitingThread( dest_tid )) return TRUE;
if (dest_tid == GetCurrentThreadId())
{
result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
call_sendmsg_callback( callback, hwnd, msg, data, result );
return TRUE;
}
FIXME( "callback will not be called\n" );
return send_inter_thread_message( dest_tid, &info, &result );
}
/***********************************************************************
* ReplyMessage (USER32.@)
*/
BOOL WINAPI ReplyMessage( LRESULT result )
{
MESSAGEQUEUE *queue = QUEUE_Current();
struct received_message_info *info = queue->receive_info;
if (!info) return FALSE;
reply_message( info, result, FALSE );
return TRUE;
}
/***********************************************************************
* InSendMessage (USER32.@)
*/
BOOL WINAPI InSendMessage(void)
{
return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
}
/***********************************************************************
* InSendMessageEx (USER32.@)
*/
DWORD WINAPI InSendMessageEx( LPVOID reserved )
{
MESSAGEQUEUE *queue = QUEUE_Current();
struct received_message_info *info = queue->receive_info;
if (info) return info->flags;
return ISMEX_NOSEND;
}
/***********************************************************************
* PostMessageA (USER32.@)
*/
BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return PostMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
}
/***********************************************************************
* PostMessageW (USER32.@)
*/
BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
struct send_message_info info;
DWORD dest_tid;
if (is_pointer_message( msg ))
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
return FALSE;
}
TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
info.type = MSG_POSTED;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = 0;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
return TRUE;
}
if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
if (USER_IsExitingThread( dest_tid )) return TRUE;
return put_message_in_queue( dest_tid, &info, NULL );
}
/**********************************************************************
* PostThreadMessageA (USER32.@)
*/
BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
{
return PostThreadMessageW( thread, msg, map_wparam_AtoW( msg, wparam ), lparam );
}
/**********************************************************************
* PostThreadMessageW (USER32.@)
*/
BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
{
struct send_message_info info;
if (is_pointer_message( msg ))
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
return FALSE;
}
if (USER_IsExitingThread( thread )) return TRUE;
info.type = MSG_POSTED;
info.hwnd = 0;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = 0;
return put_message_in_queue( thread, &info, NULL );
}
/***********************************************************************
* PostQuitMessage (USER32.@)
*/
void WINAPI PostQuitMessage( INT exitCode )
{
PostThreadMessageW( GetCurrentThreadId(), WM_QUIT, exitCode, 0 );
}
/***********************************************************************
* PeekMessageW (USER32.@)
*/
BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
{
MESSAGEQUEUE *queue;
MSG msg;
int locks;
/* check for graphics events */
if (USER_Driver.pMsgWaitForMultipleObjectsEx)
USER_Driver.pMsgWaitForMultipleObjectsEx( 0, NULL, 0, 0, 0 );
hwnd = WIN_GetFullHandle( hwnd );
locks = WIN_SuspendWndsLock();
if (!MSG_peek_message( &msg, hwnd, first, last,
(flags & PM_REMOVE) ? GET_MSG_REMOVE : 0 ))
{
if (!(flags & PM_NOYIELD))
{
DWORD count;
ReleaseThunkLock(&count);
if (count) RestoreThunkLock(count);
}
WIN_RestoreWndsLock( locks );
return FALSE;
}
WIN_RestoreWndsLock( locks );
if (msg.message == WM_PAINT) /* clear internal paint flag */
RedrawWindow( msg.hwnd, NULL, 0, RDW_NOINTERNALPAINT | RDW_NOCHILDREN );
if ((queue = QUEUE_Current()))
{
queue->GetMessageTimeVal = msg.time;
msg.pt.x = LOWORD( queue->GetMessagePosVal );
msg.pt.y = HIWORD( queue->GetMessagePosVal );
}
HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)&msg, TRUE );
/* copy back our internal safe copy of message data to msg_out.
* msg_out is a variable from the *program*, so it can't be used
* internally as it can get "corrupted" by our use of SendMessage()
* (back to the program) inside the message handling itself. */
*msg_out = msg;
return TRUE;
}
/***********************************************************************
* PeekMessageA (USER32.@)
*/
BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
{
BOOL ret = PeekMessageW( msg, hwnd, first, last, flags );
if (ret) msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
return ret;
}
/***********************************************************************
* GetMessageW (USER32.@)
*/
BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
{
MESSAGEQUEUE *queue = QUEUE_Current();
int mask, locks;
mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
if (first || last)
{
if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
}
else mask |= QS_MOUSE | QS_KEY | QS_TIMER | QS_PAINT;
locks = WIN_SuspendWndsLock();
while (!PeekMessageW( msg, hwnd, first, last, PM_REMOVE ))
{
/* wait until one of the bits is set */
unsigned int wake_bits = 0, changed_bits = 0;
DWORD dwlc;
SERVER_START_REQ( set_queue_mask )
{
req->wake_mask = QS_SENDMESSAGE;
req->changed_mask = mask;
req->skip_wait = 1;
if (!wine_server_call( req ))
{
wake_bits = reply->wake_bits;
changed_bits = reply->changed_bits;
}
}
SERVER_END_REQ;
if (changed_bits & mask) continue;
if (wake_bits & QS_SENDMESSAGE) continue;
TRACE( "(%04x) mask=%08x, bits=%08x, changed=%08x, waiting\n",
queue->self, mask, wake_bits, changed_bits );
ReleaseThunkLock( &dwlc );
if (USER_Driver.pMsgWaitForMultipleObjectsEx)
USER_Driver.pMsgWaitForMultipleObjectsEx( 1, &queue->server_queue, INFINITE, 0, 0 );
else
WaitForSingleObject( queue->server_queue, INFINITE );
if (dwlc) RestoreThunkLock( dwlc );
}
WIN_RestoreWndsLock( locks );
return (msg->message != WM_QUIT);
}
/***********************************************************************
* GetMessageA (USER32.@)
*/
BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
{
GetMessageW( msg, hwnd, first, last );
msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
return (msg->message != WM_QUIT);
}
/***********************************************************************
* IsDialogMessage (USER32.@)
* IsDialogMessageA (USER32.@)
*/
BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
{
MSG msg = *pmsg;
msg.wParam = map_wparam_AtoW( msg.message, msg.wParam );
return IsDialogMessageW( hwndDlg, &msg );
}
/***********************************************************************
* SetMessageQueue (USER32.@)
*/
BOOL WINAPI SetMessageQueue( INT size )
{
/* now obsolete the message queue will be expanded dynamically as necessary */
return TRUE;
}
/***********************************************************************
* MessageBeep (USER32.@)
*/
BOOL WINAPI MessageBeep( UINT i )
{
BOOL active = TRUE;
SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
if (active && USER_Driver.pBeep) USER_Driver.pBeep();
return TRUE;
}
/**********************************************************************
* AttachThreadInput (USER32.@)
*
* Attaches the input processing mechanism of one thread to that of
* another thread.
*/
BOOL WINAPI AttachThreadInput( DWORD from, DWORD to, BOOL attach )
{
BOOL ret;
SERVER_START_REQ( attach_thread_input )
{
req->tid_from = from;
req->tid_to = to;
req->attach = attach;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* GetGUIThreadInfo (USER32.@)
*/
BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
{
BOOL ret;
SERVER_START_REQ( get_thread_input )
{
req->tid = id;
if ((ret = !wine_server_call_err( req )))
{
info->flags = 0;
info->hwndActive = reply->active;
info->hwndFocus = reply->focus;
info->hwndCapture = reply->capture;
info->hwndMenuOwner = reply->menu_owner;
info->hwndMoveSize = reply->move_size;
info->hwndCaret = reply->caret;
info->rcCaret.left = reply->rect.left;
info->rcCaret.top = reply->rect.top;
info->rcCaret.right = reply->rect.right;
info->rcCaret.bottom = reply->rect.bottom;
if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
if (reply->move_size) info->flags |= GUI_INMOVESIZE;
if (reply->caret) info->flags |= GUI_CARETBLINKING;
}
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* GetKeyState (USER32.@)
*
* An application calls the GetKeyState function in response to a
* keyboard-input message. This function retrieves the state of the key
* at the time the input message was generated.
*/
SHORT WINAPI GetKeyState(INT vkey)
{
SHORT retval = 0;
SERVER_START_REQ( get_key_state )
{
req->tid = GetCurrentThreadId();
req->key = vkey;
if (!wine_server_call( req )) retval = (signed char)reply->state;
}
SERVER_END_REQ;
TRACE("key (0x%x) -> %x\n", vkey, retval);
return retval;
}
/**********************************************************************
* GetKeyboardState (USER32.@)
*/
BOOL WINAPI GetKeyboardState( LPBYTE state )
{
BOOL ret;
TRACE("(%p)\n", state);
memset( state, 0, 256 );
SERVER_START_REQ( get_key_state )
{
req->tid = GetCurrentThreadId();
req->key = -1;
wine_server_set_reply( req, state, 256 );
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* SetKeyboardState (USER32.@)
*/
BOOL WINAPI SetKeyboardState( LPBYTE state )
{
BOOL ret;
TRACE("(%p)\n", state);
SERVER_START_REQ( set_key_state )
{
req->tid = GetCurrentThreadId();
wine_server_add_data( req, state, 256 );
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************
* IsHungAppWindow (USER32.@)
*
*/
BOOL WINAPI IsHungAppWindow( HWND hWnd )
{
DWORD dwResult;
return !SendMessageTimeoutA(hWnd, WM_NULL, 0, 0, SMTO_ABORTIFHUNG, 5000, &dwResult);
}