--- a/src/video/cocoa/SDL_cocoawindow.m	Fri Jul 15 17:05:32 2011 -0700
+++ b/src/video/cocoa/SDL_cocoawindow.m	Sat Jul 16 11:52:09 2011 -0700
@@ -114,6 +114,7 @@
 - (void)windowDidMove:(NSNotification *)aNotification
 {
     int x, y;
+    SDL_VideoDevice *device = SDL_GetVideoDevice();
     SDL_Window *window = _data->window;
     NSWindow *nswindow = _data->nswindow;
     NSRect rect = [nswindow contentRectForFrameRect:[nswindow frame]];
@@ -136,17 +137,28 @@
 
     x = (int)rect.origin.x;
     y = (int)rect.origin.y;
+
+    if (window == device->current_glwin) {
+        [((NSOpenGLContext *) device->current_glctx) update];
+    }
+
     SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
 }
 
 - (void)windowDidResize:(NSNotification *)aNotification
 {
+    SDL_VideoDevice *device = SDL_GetVideoDevice();
     int w, h;
     NSRect rect = [_data->nswindow contentRectForFrameRect:[_data->nswindow frame]];
     w = (int)rect.size.width;
     h = (int)rect.size.height;
     if (SDL_IsShapedWindow(_data->window))
         Cocoa_ResizeWindowShape(_data->window);
+
+    if (_data->window == device->current_glwin) {
+        [((NSOpenGLContext *) device->current_glctx) update];
+    }
+
     SDL_SendWindowEvent(_data->window, SDL_WINDOWEVENT_RESIZED, w, h);
 }
 
@@ -683,6 +695,10 @@
     [nswindow setFrameOrigin:rect.origin];
     s_moveHack = moveHack;
 
+    if (window == _this->current_glwin) {
+        [((NSOpenGLContext *) _this->current_glctx) update];
+    }
+
     [pool release];
 }
 
@@ -690,12 +706,18 @@
 Cocoa_SetWindowSize(_THIS, SDL_Window * window)
 {
     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-    NSWindow *nswindow = ((SDL_WindowData *) window->driverdata)->nswindow;
+    SDL_WindowData *windata = (SDL_WindowData *) window->driverdata;
+    NSWindow *nswindow = windata->nswindow;
     NSSize size;
 
     size.width = window->w;
     size.height = window->h;
     [nswindow setContentSize:size];
+
+    if (window == _this->current_glwin) {
+        [((NSOpenGLContext *) _this->current_glctx) update];
+    }
+
     [pool release];
 }
 
@@ -738,6 +760,11 @@
     NSWindow *nswindow = ((SDL_WindowData *) window->driverdata)->nswindow;
 
     [nswindow zoom:nil];
+
+    if (window == _this->current_glwin) {
+        [((NSOpenGLContext *) _this->current_glctx) update];
+    }
+
     [pool release];
 }
 
@@ -856,6 +883,10 @@
 #endif
     [nswindow makeKeyAndOrderFront:nil];
 
+    if (window == _this->current_glwin) {
+        [((NSOpenGLContext *) _this->current_glctx) update];
+    }
+
     [pool release];
 }