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>
#include <stdlib.h>
#include <conio.h>
main()
{
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.");
getch();
exit(1);
}
getch();
closegraph();
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.