extern void DrawFieldAnimated(int X, int Y);
extern void DrawFieldNoAnimated(int X, int Y);
extern void DrawSprite(int X, int Y, int SpritePos);
+#if 0
extern void InvalidateRect(long XMin, long YMin, long XMax, long YMax);
+#endif
extern void Let_PanelVisible(boolean NewVal);
extern void ReLoadStretchSprites();
extern void SaveSnapshot(currency Number);
extern void SetDisplayRegion();
+extern void SetScrollEdges();
extern void ShowKey(int KeyVar);
extern void menDemoSpeed_Click(int Index);
extern void menEdit_Click();