private Sdl2GraphicsContext(IWindowInfo window)
{
// It is possible to create a GraphicsContext on a window
// that is not owned by SDL (e.g. a GLControl). In that case,
// we need to use SDL_CreateWindowFrom in order to
// convert the foreign window to a SDL window.
if (window is Sdl2WindowInfo)
{
Window = window;
}
else
{
Window = new Sdl2WindowInfo(
SDL.CreateWindowFrom(window.Handle),
null);
}
}
/// <summary>
/// Creates a new Ultraviolet window from the specified native window and attaches it to the current context.
/// </summary>
/// <param name="ptr">A pointer that represents the native window to attach to the context.</param>
/// <returns>The Ultraviolet window that was created.</returns>
public IUltravioletWindow CreateFromNativePointer(IntPtr ptr)
{
var sdlptr = SDL.CreateWindowFrom(ptr);
if (sdlptr == IntPtr.Zero)
{
throw new SDL2Exception();
}
var win = new OpenGLUltravioletWindow(Ultraviolet, sdlptr);
windows.Add(win);
Ultraviolet.Messages.Subscribe(win, SDL2UltravioletMessages.SDLEvent);
OnWindowCreated(win);
return(win);
}