Line Drawing

[joe_stoll]

this code draws grey lines,horizontal and vertical in center of screen

OnDraw()
{ 
       CRect rect;
	GetClientRect(rect);
	CPen penGrey;  // Construct it, then initialize
		if( penGrey.CreatePen( PS_SOLID, 0, RGB(200,200,200) ) )
		{
			// Select it into the device context
			// Save the old pen at the same time
			CPen* pOldPen = pDC->SelectObject( &penGrey );

			// Draw with the pen
			//draws axis
			pDC->MoveTo(rect.right/2,rect.top);
			pDC->LineTo(rect.right/2,rect.bottom);
			pDC->MoveTo(rect.right,rect.bottom/2);	
			pDC->LineTo(rect.left,rect.bottom/2);

			// Restore the old pen to the device context
			pDC->SelectObject( pOldPen );
		}
		else
		{
			MessageBox("Resources are running low\nPlease close one or more                     applications");		
		}
}