user32.SendMessageCallback

[Robert Shearman]

Just thought I'd submit a few patches that were hanging around. This one
implements SendMessageCallback properly which is used in one of the versions
of IE and enables it to work properly.

Changelog:
- Make SendMessageCallback support calling any window, regardless of thread
or process
-------------- next part --------------
Index: wine/dlls/user/message.c
===================================================================
RCS file: /home/wine/wine/dlls/user/message.c,v
retrieving revision 1.31
diff -u -r1.31 message.c
--- wine/dlls/user/message.c	3 Dec 2002 23:34:54 -0000	1.31
+++ wine/dlls/user/message.c	4 Dec 2002 22:37:09 -0000
@@ -1876,7 +1876,33 @@
     }
     return send_inter_thread_message( dest_tid, &info, &result );
 }
-
+
+static DWORD WINAPI threadproc_sendmessagecallback(LPVOID lpParameter)
+{
+	struct send_message_info * lpInfo = (struct send_message_info *) lpParameter;
+    LRESULT result;
+    DWORD dest_tid;
+    if (!(dest_tid = GetWindowThreadProcessId( lpInfo->hwnd, NULL )))
+	{
+		HeapFree( GetProcessHeap(), 0, lpInfo );
+		return 1;
+	}
+
+    if (USER_IsExitingThread( dest_tid ))
+	{
+		HeapFree( GetProcessHeap(), 0, lpInfo );
+		return 0;
+	}
+
+    if (send_inter_thread_message( dest_tid, lpInfo, &result ))
+	{
+		lpInfo->callback( lpInfo->hwnd, lpInfo->msg, lpInfo->data, result );
+		HeapFree( GetProcessHeap(), 0, lpInfo );
+		return 0;
+	}
+	HeapFree( GetProcessHeap(), 0, lpInfo );
+	return 1;
+}
 
 /***********************************************************************
  *		SendMessageCallbackA  (USER32.@)
@@ -1895,7 +1921,8 @@
 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
                                   SENDASYNCPROC callback, ULONG_PTR data )
 {
-    struct send_message_info info;
+    struct send_message_info info;
+	struct send_message_info * lpInfo;
     LRESULT result;
     DWORD dest_tid;
 
@@ -1929,11 +1956,11 @@
         callback( hwnd, msg, data, result );
         return TRUE;
     }
-    FIXME( "callback will not be called\n" );
-    return send_inter_thread_message( dest_tid, &info, &result );
+	lpInfo = HeapAlloc( GetProcessHeap(), 0, sizeof(struct send_message_info) );
+	CopyMemory( lpInfo, &info, sizeof(struct send_message_info) );
+    return (CreateThread(NULL, 0, threadproc_sendmessagecallback, (LPVOID)lpInfo, 0, NULL) != NULL);
 }
-
-
+
 /***********************************************************************
  *		ReplyMessage  (USER32.@)
  */