>You just reset Lockscreen for new form too.

I mean, the form should not be visible to the user once we do the lock. Anything that changes the display of the screen will not be visible.

Something like this would be required in only certain situations. For e.g. I wanted to load some forms in the beginning of my applications which are never visible to the user. When they want to use those forms I just control the visible property. In such a situation when we run the form in the beginning with _screen.Lockscreen = .T. or MyForm.Lockscreen = .T., the forms will still be displayed to the users.

Moreover it is also useful when VFP is used with any external application where you have to switch between applications and the switching should appear as a flash.