user32: Don't bother returning a value from the SetWindowRgn driver entry point.

dlls/user32/driver.c

@@ -457,9 +457,8 @@ static void CDECL nulldrv_SetParent( HWND hwnd, HWND parent, HWND old_parent )
 {
 }
 
-static int CDECL nulldrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
+static void CDECL nulldrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
 {
-    return 1;
 }
 
 static void CDECL nulldrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
@@ -757,9 +756,9 @@ static void CDECL loaderdrv_SetLayeredWindowAttributes( HWND hwnd, COLORREF key,
     load_driver()->pSetLayeredWindowAttributes( hwnd, key, alpha, flags );
 }
 
-static int CDECL loaderdrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
+static void CDECL loaderdrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
 {
-    return load_driver()->pSetWindowRgn( hwnd, hrgn, redraw );
+    load_driver()->pSetWindowRgn( hwnd, hrgn, redraw );
 }
 
 static BOOL CDECL loaderdrv_UpdateLayeredWindow( HWND hwnd, const UPDATELAYEREDWINDOWINFO *info,

dlls/user32/user_private.h

@@ -105,7 +105,7 @@ typedef struct tagUSER_DRIVER {
     void   (CDECL *pSetFocus)(HWND);
     void   (CDECL *pSetLayeredWindowAttributes)(HWND,COLORREF,BYTE,DWORD);
     void   (CDECL *pSetParent)(HWND,HWND,HWND);
-    int    (CDECL *pSetWindowRgn)(HWND,HRGN,BOOL);
+    void   (CDECL *pSetWindowRgn)(HWND,HRGN,BOOL);
     void   (CDECL *pSetWindowIcon)(HWND,UINT,HICON);
     void   (CDECL *pSetWindowStyle)(HWND,INT,STYLESTRUCT*);
     void   (CDECL *pSetWindowText)(HWND,LPCWSTR);

dlls/winemac.drv/window.c

@@ -1374,7 +1374,7 @@ void CDECL macdrv_SetParent(HWND hwnd, HWND parent, HWND old_parent)
  *
  * Assign specified region to window (for non-rectangular windows)
  */
-int CDECL macdrv_SetWindowRgn(HWND hwnd, HRGN hrgn, BOOL redraw)
+void CDECL macdrv_SetWindowRgn(HWND hwnd, HRGN hrgn, BOOL redraw)
 {
     struct macdrv_win_data *data;
 
@@ -1393,8 +1393,6 @@ int CDECL macdrv_SetWindowRgn(HWND hwnd, HRGN hrgn, BOOL redraw)
         if (procid != GetCurrentProcessId())
             SendMessageW(hwnd, WM_MACDRV_SET_WIN_REGION, 0, 0);
     }
-
-    return TRUE;
 }
 
 

dlls/winex11.drv/window.c

@@ -2435,7 +2435,7 @@ done:
  *
  * Assign specified region to window (for non-rectangular windows)
  */
-int CDECL X11DRV_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
+void CDECL X11DRV_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
 {
     struct x11drv_win_data *data;
 
@@ -2448,7 +2448,6 @@ int CDECL X11DRV_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
     {
         SendMessageW( hwnd, WM_X11DRV_SET_WIN_REGION, 0, 0 );
     }
-    return TRUE;
 }