// MIT License - Copyright (C) The Mono.Xna Team
// This file is subject to the terms and conditions defined in
// file 'LICENSE.txt', which is part of this source code package.

namespace Microsoft.Xna.Framework
{
    /// <summary>
    /// Used by the platform code to control the graphics device.
    /// </summary>
    public interface IGraphicsDeviceManager
    {
        /// <summary>
        /// Called at the start of rendering a frame.
        /// </summary>
        /// <returns>Returns true if the frame should be rendered.</returns>
        bool BeginDraw();

        /// <summary>
        /// Called to create the graphics device.
        /// </summary>
        /// <remarks>Does nothing if the graphics device is already created.</remarks>
        void CreateDevice();

        /// <summary>
        /// Called after rendering to present the frame to the screen.
        /// </summary>
        void EndDraw();
    }
}