C语言函数—setvbuf

函数名

setusercharsize

功 能

为矢量字体改变字符宽度和高度

用 法

void far setusercharsize(int multx, int dirx, int multy, int diry);

程序例

#include <graphics.h> 
#include <stdlib.h> 
#include <stdio.h> 
#include <conio.h> 

int main(void) 
{ 
   /* request autodetection */ 
   int gdriver = DETECT, gmode, errorcode; 

   /* initialize graphics and local variables */ 
   initgraph(&gdriver, &gmode, ""); 

   /* read result of initialization */ 
   errorcode = graphresult(); 
   if (errorcode != grOk)      /* an error occurred */ 
   { 
      printf("Graphics error: %sn", grapherrormsg(errorcode)); 
      printf("Press any key to halt:"); 
      getch(); 
      exit(1);                 /* terminate with an error code */ 
   } 

   /* select a text style */ 
   settextstyle(TRIPLEX_FONT, HORIZ_DIR, 4); 

   /* move to the text starting position */ 
   moveto(0, getmaxy() / 2); 

   /* output some normal text */ 
   outtext("Norm "); 

   /* make the text 1/3 the normal width */ 
   setusercharsize(1, 3, 1, 1); 
   outtext("Short "); 

   /* make the text 3 times normal width */ 
   setusercharsize(3, 1, 1, 1); 
   outtext("Wide"); 

   /* clean up */ 
   getch(); 
   closegraph(); 
   return 0; 
} 
  

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