Line on MDI form?????

[CyberHawke]

Did you try it?

I have used some complex drawing methods to create spectacular looking forms in some of the projects I have worked on, and I am very familiar with the Drawing methods in .NET. They simply don't work on an MDI container form.

I suspect the reason is that an MDI container form is obviously just another Form, and when you indicate that it is of a type MDI container, Microsoft behind the scenes is using those draw methods to make the background the darker color.