How do I draw a line in VB7 as there is no Line command as there was in VB6

Try this code:

	Dim g as Graphics
	g = frmMain.CreateGraphics()
	g.DrawLine(Pens.Black, new Point(0,0), new
		Point(frmMain.ClientRectangle.Width), frmMain.ClientRectangle.Height)
	g.Dispose()

This should draw a line from the upper left to the bottom right corner of your application, but only if it’s visible. If this code isn’t in the paint event, when something obscures your application and/or it repaints, this line will *not* be redrawn.

(from [email protected] on microsoft.public.dotnet.framework.windowsforms)

Another possible solution that has a design-time element is to use a label with height 1 and FixedSingle Border.
(suggested by Mark Lewis in microsoft.public.dotnet.framework.windowsforms)