#define PSET   0
#define PRESET 1
#define OR     2
#define AND    3
#define XOR    4
#define NOT    5
#define MATTE  6
#define PASTEL 7
#define OPAQUE 9


/* wgbfunc.c */
void YsWgbWriteMode(char *egb,int mod);
void YsWgbLine(char *egb,int x0,int y0,int x1,int y1);
void YsWgbPset(char *egb,int x,int y);
void YsWgbBox(char *egb,int x0,int y0,int x1,int y1);
void YsWgbFilledBox(char *egb,int x0,int y0,int x1,int y1);
void YsWgbEllipse(char *egb,int cx,int cy,int rx,int ry);
void YsWgbFilledEllipse(char *egb,int cx,int cy,int rx,int ry);
void YsWgbPolygon(char *work,int *para);
void YsWgbPolyline(char *work,int *para);
void YsWgbLineseq(char *work,int *para);
void YsWgbPutBitmap(char *egb,unsigned char *bmp,int x1,int y1,int x2,int y2);
void YsWgbPutColorBitmap
		(char *egb,unsigned char *bmp,int x1,int y1,int x2,int y2);

void YsWgbCls(char *egb);
void YsWgbColor(char *egb,int col);
void YsWgbBackColor(char *egb,int col);
void YsWgbViewPort(char *work,int x1,int y1,int x2,int y2);