void SetDrawtoField(int);
void RedrawPlayfield();
void BlitScreenToBitmap_RND(Bitmap *);
void BlitScreenToBitmap(Bitmap *);
void BackToFront();
void SetDrawtoField(int);
void RedrawPlayfield();
void BlitScreenToBitmap_RND(Bitmap *);
void BlitScreenToBitmap(Bitmap *);
void BackToFront();