Avoid truncated window size after going from fullscreen to a window of the same size.

Must set the window size after the display resolution, otherwise Windows may clamp it to a smaller size than specified.

MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/Apps/plClient/plClient.cpp

@@ -2170,10 +2170,10 @@ void plClient::ResetDisplayDevice(int Width, int Height, int ColorDepth, hsBool
 
 	WindowActivate(false);
 
-	ResizeDisplayDevice(Width, Height, Windowed);
-
 	fPipeline->ResetDisplayDevice(Width, Height, ColorDepth, Windowed, NumAASamples, MaxAnisotropicSamples, VSync);
 
+	ResizeDisplayDevice(Width, Height, Windowed);
+	
 	WindowActivate(true);
 }
 
@@ -2191,7 +2191,8 @@ void plClient::ResizeDisplayDevice(int Width, int Height, hsBool Windowed)
 	UInt32 winStyle, winExStyle;
 	if( Windowed )
 	{
-		winStyle = WS_OVERLAPPEDWINDOW;
+		// WS_VISIBLE appears necessary to avoid leaving behind framebuffer junk when going from windowed to a smaller window
+		winStyle = WS_OVERLAPPEDWINDOW | WS_VISIBLE;
 		winExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
 	} else {
 		winStyle = WS_POPUP;