[perl-win32-gui-users] modal windows

[Aldo Calpini]

to my absolute dismay, I've just discovered that "true" modal windows
are perfectly doable in Win32::GUI.

I banged my head for more than one week fighting with dialog templates
and crappy hacks... what a fool.

the following code implements a regular modal window, with all the
features. the trick is in the "-parent" option, and proper use of
Enable/Disable, Show/Hide and BringWindowToTop.

        use Win32::GUI;

        $MainWindow = Win32::GUI::Window->new(
            -text => "Main",
            -name => "MainWindow",
            -pos  => [ 200, 200 ],
            -size => [ 150, 100 ],
        );

        $MainWindow->AddButton(
            -name => "OpenModal",
            -pos  => [ 15, 20 ],
            -text => "Open Modal Window",
        );

        $ModalWindow = Win32::GUI::Window->new(
            -text => "Modal",
            -name => "ModalWindow",
            -pos  => [ 220, 220 ],
            -size => [ 150, 100 ],
            -parent => $MainWindow, # this is the trick!
        );

        $ModalWindow->AddButton(
            -name => "CloseModal",
            -pos  => [ 15, 20 ],
            -text => "Close Modal Window",
        );

        $MainWindow->Show();
        Win32::GUI::Dialog();

        sub OpenModal_Click {
            $MainWindow->Disable();
            $ModalWindow->Show();
        }

        sub CloseModal_Click {
            $ModalWindow->Hide();
            $MainWindow->Enable();
            $MainWindow->BringWindowToTop();
            return 1;
        }

        sub MainWindow_Terminate {
            -1;
        }

        sub ModalWindow_Terminate {
            CloseModal_Click();
            return 0; # so that $ModalWindow is not destroyed
        }

maybe all this can be encapsulated in Perl functions, like this:

        sub OpenModal_Click {
            $MainWindow->DoModal($ModalWindow);
        }

        sub CloseModal_Click {
            $ModalWindow->EndDialog();
        }

would this fulfill all the needs for modal dialog boxes?
        
cheers,
Aldo

__END__
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