--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/VNCServer/IFramebuffer.cs	Mon Apr 15 02:04:36 2013 +0200
@@ -0,0 +1,62 @@
+using System;
+using System.Drawing;
+
+namespace UCIS.VNCServer {
+	/// <summary>
+	/// A generic graphic framebuffer interface that provides functions to draw to and copy from the framebuffer
+	/// </summary>
+	public interface IFramebuffer {
+		/// <summary>
+		/// The width of the framebuffer in pixels
+		/// </summary>
+		int Width { get; }
+		/// <summary>
+		/// The height of the framebuffer in pixels
+		/// </summary>
+		int Height { get; }
+		/// <summary>
+		/// Clear the display area
+		/// </summary>
+		void Clear();
+		/// <summary>
+		/// Draw part of an Image to the screen
+		/// </summary>
+		/// <remarks>Best performance is provided with Bitmap images.</remarks>
+		/// <param name="image">The Image object to copy from</param>
+		/// <param name="srcrect">The area in the image to copy</param>
+		/// <param name="dest">The position on screen to copy to</param>
+		void DrawImage(Image image, Rectangle srcrect, Point dest);
+		/// <summary>
+		/// Draw part of a 32 bits per pixel bitmap to the screen
+		/// </summary>
+		/// <param name="bitmap">The array that contains the Bitmap data (one pixel per entry)</param>
+		/// <param name="bmwidth">The width of the Bitmap data</param>
+		/// <param name="srcrect">The area in the bitmap to copy</param>
+		/// <param name="dest">The position on screen to copy to</param>
+		void DrawPixels(int[] bitmap, int bmwidth, Rectangle srcrect, Point dest);
+		/// <summary>
+		/// Draw part of a 32 bits per pixel bitmap to the screen
+		/// </summary>
+		/// <param name="bitmap">The pointer to the start of the Bitmap data</param>
+		/// <param name="bmwidth">The width of the Bitmap data</param>
+		/// <param name="srcrect">The area in the bitmap to copy</param>
+		/// <param name="dest">The position on screen to copy to</param>
+		void DrawPixels(IntPtr bitmap, int bmwidth, Rectangle srcrect, Point dest);
+
+		/// <summary>
+		/// Copy an area on the display
+		/// </summary>
+		/// <param name="srcrect">The area to copy from</param>
+		/// <param name="dest">Where to copy the area to</param>
+		void CopyRectangle(Rectangle srcrect, Point dest);
+
+		/// <summary>
+		/// Copy an area from this framebuffer to another framebuffer
+		/// </summary>
+		/// <remarks>Not all framebuffer implementations may support this operation, notably because some framebuffers can only be written to</remarks>
+		/// <param name="srcrect">The area to copy</param>
+		/// <param name="destbuffer">The framebuffer to copy to</param>
+		/// <param name="destposition">The position in the destination framebuffer to copy to</param>
+		void CopyRectangleTo(Rectangle srcrect, IFramebuffer destbuffer, Point destposition);
+	}
+}