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grapherrormsg function in C

grapherrormsg function returns an error message string.

Declaration: char *grapherrormsg( int errorcode );

C programming code for grapherrormsg

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

   int gd, gm, errorcode;

   initgraph(&gd, &gm, "C:\\TC\\BGI");

   errorcode = graphresult();

   if(errorcode != grOk)
      printf("Graphics error: %s\n", grapherrormsg(errorcode));
      printf("Press any key to exit.");

   return 0;

In the above program we have not written gd = DETECT.
After running this program we get the output :-
Graphics error: Graphics hardware not detected
Press any key to exit.