Advanced Forms :: No title bar! How can we drag such a window? For example, consider the case of a Windows application that doesn't have a title bar, how can we move such a form? In fact, it's possible to create windows with a nonstandard title bar and even non rectangular forms. In this case, how could Windows know where the borders and the corners of the window are?
Read the full article to learn how to : make a Delphi form move by clicking (and dragging) in its client area