"Joe" <J_no_spam@_no_spam_Fishinbrain.com> wrote in message
news:#J5MRSVMFHA.1308@tk2msftngp13.phx.gbl...
> I have a MDI app where 2 children forms should never be closed. I'm using
> RemoveMenu API to remove the close X and context menu item. This works
fine
> on one form but not on the other. The major difference between these 2
forms
> is that the one that doesn't work has an ActiveX control.
>
> If I can put the RemoveMenu() in the Activate event of the form it will
work
> after reactivating the form by clicking on another form then back again.
> This has 2 problems though. First the user could close the form as long as
> the form didn't become deactive and second, the Windows top bar where the
> Control box it located no longer works so the form can't be dragged and
also
> can't be double clicked to maximize the window.
>
> If I call GetLastError() after calling DrawMenuBar() it returns 1400 -
> Invalid window handle.
>
> Any ideas why? Could the ActiveX control be causing the problem?
>
> Thanks,
> Joe
>
>