+inline void X11InitVideoDisplay(void);
+inline void X11InitVideoBuffer(DrawBuffer **, DrawWindow **);
+
+void X11ZoomBitmap(Bitmap *, Bitmap *);
+Bitmap *X11LoadImage(char *);
+
+inline void X11CreateBitmapContent(Bitmap *, int, int, int);
+inline void X11FreeBitmapPointers(Bitmap *);
+inline void X11CopyArea(Bitmap *, Bitmap *, int, int, int, int, int, int, int);
+inline void X11FillRectangle(Bitmap *, int, int, int, int, Pixel);
+inline void X11DrawSimpleLine(Bitmap *, int, int, int, int, Pixel);
+inline Pixel X11GetPixel(Bitmap *, int, int);
+inline Pixel X11GetPixelFromRGB(unsigned int, unsigned int, unsigned int);
+
+#if defined(TARGET_X11_NATIVE)
+void X11SetMouseCursor(struct MouseCursorInfo *);
+#endif