fixed gcc4 warning

Modified: trunk/reactos/lib/shell32/ros-systray.c

--- trunk/reactos/lib/shell32/ros-systray.c	2005-09-22 20:54:20 UTC (rev 17988)
+++ trunk/reactos/lib/shell32/ros-systray.c	2005-09-22 21:09:06 UTC (rev 17989)
@@ -54,7 +54,7 @@

 	data.cbData = len;
 	data.lpData = pnotify_data;
 

-	for(hwnd=0; hwnd=FindWindowExW(0, hwnd, L"Shell_TrayWnd", NULL); )

+	for(hwnd=0; (hwnd=FindWindowExW(0, hwnd, L"Shell_TrayWnd", NULL)); )

 		if ((unicode?SendMessageW:SendMessageA)(hwnd, WM_COPYDATA, (WPARAM)nid_hwnd, (LPARAM)&data))
 			ret = TRUE;