#include "graphics.h" void showerrorbox(const char* message=NULL);
![[WIN]](win.gif)
/* showerrorbox example */
#include "graphics.h"
int main(void)
{
/* initialize graphics window at 400 x 300 */
initwindow(400, 300);
/* draw a line */
line(0, 0, getmaxx(), getmaxy());
/* display a sample error box */
showerrorbox("Sample of an Error Box");
closegraph();
return 0;
}