4c8
extern int mousex,mousey;
extern int event_flags;

void vsync(void);
void ena_refresh(void);
void dis_refresh(void);

int init_mouse(int max_x,int max_y,int start_x,int start_y);
int get_mouse_event(void);
int get_button_status(void);
void exit_mouse(void);

unsigned load_iff(int mode,char* fname,unsigned picseg);
unsigned load_pcx(int mode,char* fname,unsigned picseg);

void mcgaInit(void);
void mcgaExit(void);
void mcgaClrScr(int color);
void mcgaClrArea(int x, int y, int w, int h, int color);
void mcgaPutPixel(int x, int y, int color);
int mcgaGetPixel(int x, int y);
void mcgaDrawLine(int x1, int y1, int x2, int y2, int color);
void mcgaDrawBox(int x1, int y1, int x2, int y2, int color);
void mcgaDrawPoly(int numpoints, int far *polypoints, int color);

void mcgaPutSpriteInv(int x,int y,int wide,int deep,unsigned sprtseg,
				 unsigned sprtoffs,unsigned destseg);

void mcgaPutSprite(int x,int y,int wide,int deep,unsigned sprtseg,
			  unsigned sprtoffs,unsigned destseg);

void mcgaPutImgInv(int src_x,int src_y,int wide,int deep,
			  unsigned srcseg,unsigned destseg);

void mcgaPutImg(int src_x,int src_y,int wide,int deep,
			   unsigned srcseg,unsigned destseg);
.

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