The app in the picture (Post 1) was done with C++ Builder. My aim is to get the same 'look and feel' with B4J. At this stage I am afraid it will be a slow and long struggle.
I attached the B4J project. It is basically the Main Form and one 'child' form. This child form must not be able to move outside the 'canvas' of the main form. The child form (it sit in a class) will eventually be the BASE for all forms in the app. The solution Erel gave to limit movement only work for 'UNDECORATED' forms as the Title bar is excluded from the event (See code) I might use a Pane instead of a form to get all the control I want.
OK, anyone that can make the form to be constrained in the MainForm ?