void Gr_NewWindow __PROTO((int nargs, int args[]));
void Gr_ClearWindow __PROTO((grwin_t * grwin));
void Gr_Text __PROTO((grwin_t * grwin, grcmd_t * data));
void Gr_Geometry __PROTO((grwin_t * grwin, grcmd_t * data));
void Gr_DestroyWindow __PROTO((grwin_t * grwin));
void Gr_Dispatch __PROTO((grwin_t * grwin, grcmd_t * data));
void Gr_Redraw __PROTO((grwin_t * grwin));
void Gr_ButtonReport __PROTO((int but, int x, int y));
void Gr_do_graphics __PROTO((int cmd, int nargs, int args[], unsigned char *text));
void Gr_scroll __PROTO((int count));
void Gr_ClearScreen __PROTO((void));
void Gr_ChangeScreen __PROTO((void));
void Gr_expose __PROTO((Window win));
void Gr_Resize __PROTO((int w, int h));
void Gr_reset __PROTO((void));
int Gr_Displayed __PROTO((void));