C语言函数—remove

函数名

registerbgidriver

功 能

登录已连接进来的图形驱动程序代码

用 法

int registerbgidriver(void(*driver)(void));

程序例

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

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

   /* register a driver that was added into graphics.lib */ 
   errorcode = registerbgidriver(EGAVGA_driver); 

   /* report any registration errors */ 
   if (errorcode < 0) 
   { 
      printf("Graphics error: %sn", grapherrormsg(errorcode)); 
      printf("Press any key to halt:"); 
      getch(); 
      exit(1); /* terminate with an error code */ 
   } 

   /* 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 */ 
   } 

   /* draw a line */ 
   line(0, 0, getmaxx(), getmaxy()); 

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

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