public bool ScreensAddOrDel(string img)
{
if (Screens == null)
{
Screens = new List <string>();
}
if (Screens.Contains(img))
{
Screens.Remove(img);
return(false);
}
else
{
Screens.Add(img);
return(true);
}
}
public bool HasScreen(GuiScreen screen)
{
return(Screens.Contains(screen));
}
public bool ContainsKey(IScreen key)
{
return(Screens.Contains(key));
}