以前dos下写的一个文本窗口的程序代码-popup.h，使用了mouse代码

以下代码在dos/turbo_C2.0编译通过，并使用良好，只是没有注释，
我也忘了，根据函数名猜吧。

http://leadgenius.cublog.cn/

/* popup.h */
#define Ctrwin 9999
typedef  struct texel_struct {
      unsigned char ch;
      unsigned char attr;
} texel;
typedef struct wincolors_struct {
      char border_type;
      unsigned char border_color,text_color;
      unsigned char title_color,hilite_color;
} wincolors;
enum windowtype {popup,tile};
typedef struct winstruct {
      char *name;
      void *image;
      struct winstruct *under,*over;
      wincolors wc;
      char xul,yul,xlr,ylr,wd,ht;
      char xsave,ysave;
      enum windowtype wtype;
} windesc;

extern windesc *base_win;
extern windesc *curr_win;
extern wincolors defcolors;
extern wincolors invcolors;
extern wincolors monocolors;
extern wincolors errcolors;
extern wincolors msgcolors;

#define rmv_win(w) view_win(w,0)
#define slct_win(w) view_win(w,1)

extern void  init_win(void);
extern windesc *draw_win (int x,int y,int wd,int ht,char *title,
        enum windowtype wt,wincolors *ws);
extern void view_win(windesc *this,int move_to_top);
extern void clr_win(void);
extern void draw_box(int xul,int yul,int xlr,int ylr,int btype,int attr);
extern void centerstr(int xul,int yul,int xlr,int ylr,char *s,unsigned char a);
extern void mprintf(char *fmt,...);
extern void prtfstr(int x,int y,char *fmt,unsigned char attr,int wd,...);
extern void swap_image(windesc *w);

#define Swrnf       0,1,__Line__,__File__
#define Serrf       0,2,__Line__,__File__
#define Smsgf     0,0,__Line__,__File__
#define Fwrnf       1,1,__Line__,__File__
#define Ferrf       1,2,__Line__,__File__
#define Fmsgf       1,0,__Line__,__File__

#define Swrn 0,1,0,""
#define Serr 0,2,0,""
#define Smsg 0,0,0,""
#define Fwrn 1,1,0,""
#define Ferr 1,2,0,""
#define Fmsg 1,0,0,""

extern int errx;
extern int erry;
extern windesc *errw;
extern int msgx;
extern int msgy;
extern windesc *msgw;
extern void numnewlines(char *s,int *n,int *w);
extern void popmsg(int x,int y,char *msg,char *title,
  char soundout,wincolors *wc);
extern void reperr(int level,char *msg);
extern void repmsg(char *msg);
extern void sayerr(int ferr,int errflag,int lno,
  char *pname,char *fmt,...);
extern void beep(void);
extern unsigned int getkey(void);