public static void ShowWindow()
{
if (instance != null)
{
instance.position = new Rect( 50, 50, 600, 500);
instance.Show();
return;
}
instance = (BitmapSaverWindow)EditorWindow.GetWindow(typeof(BitmapSaverWindow), false, "Saver");
instance.position = new Rect( 50, 50, 600, 500);
instance.wantsMouseMove = true;
instance.Show();
}