Declaration: void bar(int left, int top, int right, int bottom);
Bar function is used to draw a 2-dimensional, rectangular filled in bar . Coordinates of left top and right bottom corner are required to draw the bar. Left specifies the X-coordinate of top left corner, top specifies the Y-coordinate of top left corner, right specifies the X-coordinate of right bottom corner, bottom specifies the Y-coordinate of right bottom corner. Current fill pattern and fill color is used to fill the bar. To change fill pattern and fill color use setfillstyle.
C program
#include <graphics.h>
#include <conio.h>
#include <conio.h>
main()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:\\TC\\BGI");
bar(100, 100, 200, 200);
getch();
closegraph();
return 0;
}