user32: Fixed the return value of DispatchMessageA/W.

dlls/user32/message.c

@@ -2961,10 +2961,10 @@ BOOL WINAPI TranslateMessage( const MSG *msg )
  *
  * See DispatchMessageW.
  */
-LONG WINAPI DispatchMessageA( const MSG* msg )
+LRESULT WINAPI DispatchMessageA( const MSG* msg )
 {
     WND * wndPtr;
-    LONG retval;
+    LRESULT retval;
     WNDPROC winproc;
 
       /* Process timer messages */
@@ -3033,10 +3033,10 @@ LONG WINAPI DispatchMessageA( const MSG* msg )
  *   ECMA-234, Win32
  *
  */
-LONG WINAPI DispatchMessageW( const MSG* msg )
+LRESULT WINAPI DispatchMessageW( const MSG* msg )
 {
     WND * wndPtr;
-    LONG retval;
+    LRESULT retval;
     WNDPROC winproc;
 
       /* Process timer messages */

include/winuser.h

@@ -4475,8 +4475,8 @@ INT_PTR   WINAPI DialogBoxIndirectParamW(HINSTANCE,LPCDLGTEMPLATEW,HWND,DLGPROC,
 INT_PTR   WINAPI DialogBoxParamA(HINSTANCE,LPCSTR,HWND,DLGPROC,LPARAM);
 INT_PTR   WINAPI DialogBoxParamW(HINSTANCE,LPCWSTR,HWND,DLGPROC,LPARAM);
 #define     DialogBoxParam WINELIB_NAME_AW(DialogBoxParam)
-LONG        WINAPI DispatchMessageA(const MSG*);
-LONG        WINAPI DispatchMessageW(const MSG*);
+LRESULT     WINAPI DispatchMessageA(const MSG*);
+LRESULT     WINAPI DispatchMessageW(const MSG*);
 #define     DispatchMessage WINELIB_NAME_AW(DispatchMessage)
 INT       WINAPI DlgDirListA(HWND,LPSTR,INT,INT,UINT);
 INT       WINAPI DlgDirListW(HWND,LPWSTR,INT,INT,UINT);