line() function
line function is used to draw a line from a point(x1,y1) to point(x2,y2) i.e. (x1,y1) and (x2,y2) are end points of the line. The code given below draws a line.
Declaration of line() function
void line(int x1, int y1, int x2, int y2);C programming code for line
#include<graphics.h>
#include<conio.h>
main()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:\\ TurboC3\\BGI");
line(100, 100, 200, 200);
getch();
closegraph();
return 0;
}