Hi Barbara! I want prevent user to activate another window by mouse click. But modal window doesn't reflect my needs. I'll try to explain situation. Just imagine that my app have toplevel form as main window. On this window I place all necessary grids for displaying information which user want. This main form have a toolbar (New, Edit etc buttons). This toolbar is generic for all lookup forms with grids, when you press New button on toolbar then I call appropriate form for editing/adding records. Modal form work fine if I call this form for editing records, but when I call form for view my lookup table user shouldn't be able to switch to another window and should be able click on toolbar. In case of modal form it isn't possible ;( May be someone here know how to do this stuff? BTW, why do you confused? ;) I'm sorry in advance if my English not so clear fot understand. Have a happy day Vladimir Shevchenko > answer is correct. Or are you trying to keep people from clicking on > another window? In this case, making the window MODAL would be better. > I'm confused.