API help needed

gvi70000

Hello,

In Catia (a 3D cad application) VBA i start a Catia command - a dialog box - for which i know the class and the handle. This dialog is modal.
From the same vba macro i start a user form right after the dialog is opened.
My problem now is that my macro get's stuck.
Is there any way to convert that dialog to modeless so that i can continue my macro?
Or how can i start and interact with the dialog and my user form?