void SetDrawtoField(int);
void RedrawPlayfield(boolean, int, int, int, int);
+void BlitScreenToBitmap(Bitmap *);
void BackToFront();
void FadeIn(int);
int getBeltSwitchElementFromBeltNrAndBeltDirNr(int, int);
int getBeltSwitchElementFromBeltNrAndBeltDir(int, int);
-unsigned int InitRND(long);
+unsigned int InitRND(int);
void InitGraphicInfo_EM(void);
void PlayMenuSoundExt(int);