fixes flicker

git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@1083 993157c7-ee19-0410-b2c4-bb4e9862e678

ShpViewer/MapViewControl.cs

@@ -16,6 +16,8 @@ namespace ShpViewer
 
 		public MapViewControl()
 		{
+			SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
+			UpdateStyles();
 		}
 
 		static Font font = new Font( FontFamily.GenericMonospace, 10 );
@@ -24,8 +26,9 @@ namespace ShpViewer
 			base.OnPaint(e);
 			if (Map == null || TileSet == null)
 				return;
-			using( Graphics g = e.Graphics )
-			{
+
+			Graphics g = e.Graphics;
+
 			for (int x = 50; x >= 0; x--)
 			{
 				int tX = x + Map.XOffset + XScroll;
@@ -62,4 +65,3 @@ namespace ShpViewer
 		}
 	}
 }
-}