topic Re: Modal x Modeless Windows in Navisworks API Forum

Modal x Modeless Windows

xaotix — Sun, 22 Jun 2025 16:45:23 GMT

I have various windows in WPF in project.

They are working fine when I call them by modal:

.ShowWindow()

Now I want the user to be able to interact with the model.
So I switched to modeless:

.Show()

But after that, all the textboxes are frozen.

How I can achieve this?

Re: Modal x Modeless Windows

ahmed.elhawary73 — Mon, 23 Jun 2025 14:38:23 GMT

@xaotix

I faced this issue before, and this worked with me:

MyForm form= new MyForm(); ElementHost.EnableModelessKeyboardInterop(form); IntPtr hwnd = NavisworksHelper.GetNavisworksMainWindowHandle(); WindowInteropHelper helper = new WindowInteropHelper(form); helper.EnsureHandle(); helper.Owner = hwnd; form.Show();

If it worked please accept as solution

Re: Modal x Modeless Windows

xaotix — Mon, 23 Jun 2025 21:05:36 GMT

Thx a lot.

Worked like a charm!

The only thing that I needed to find out was what your GetNavisworksMainWindowHandle do.

ElementHost.EnableModelessKeyboardInterop(window); IntPtr hwnd = ((MainWindow)Autodesk.Navisworks.Api.Application.Gui.MainWindow).Handle; WindowInteropHelper helper = new WindowInteropHelper(window); helper.EnsureHandle(); helper.Owner = hwnd; window.Show();

Re: Modal x Modeless Windows

ahmed.elhawary73 — Tue, 24 Jun 2025 06:48:38 GMT

I'm glade to help