#include <highgui.h>

int main( int argc, char** argv ) 
{
	int i;
    IplImage* img = cvLoadImage( argv[1] );

    cvNamedWindow( "Example1", CV_WINDOW_AUTOSIZE );

    for (i=0; i<=300; i=i+3)
		cvLine(img, cvPoint(0,0),cvPoint(100,i),CV_RGB(255,0,0),1,8,0);

	cvShowImage( "Example1", img );
    cvWaitKey(0);
    cvReleaseImage( &img );
    cvDestroyWindow( "Example1" );
}