int it;
Splitter splitter;
ImageCtrl outImgctrl;

Constructor(  )
{
  it = 1;
  splitter.Add(outImgctrl);
}

void Start(  )
{
	int itMaxNumber = 40;
	
	while( it < itMaxNumber )
	{
		MyDraw(  );
		it++;
	}
}

void MyDraw(  )
{
	ImageBuffer imgb(128, 128);
	
	for( int i = 0; i < 128; i++ )
	{
		RGBA *l = imgb[i];
		for( int j = 0; j < 128; j++ )
		{
                        // draws a line moving downwards
			if ( it == i )
			{
				l[j] = Black(  );
			}
			else
				l[j] = White(  );
		}
	}
	
	outImgctrl.SetImage( imgb );
	Refresh(  ); // needed? what's for?
}