How to center Dialog to Window when there are not parent/children to each other?

[qarmin (Rafał Mikrut)]

Hi,
I want to center independent Dialog to main Window, but when I use

dialog_progress.set_position(WindowPosition::CenterOnParent);

then dialog appear on center of current screen, where actually Window is.

Is there any method to set position of Dialog to center of Window like:

dialog_progress.set_at_center_of(window_main);

?

[ebassi (Emmanuele Bassi)]

No: positioning top-level windows is the realm of the window manager, not of the toolkit.

[Dies]

Based on what you stated @ebassi is absolutely correct, as usual.

But just in case what you said and what you mean aren’t the same thing.

@qarmin

I want to center independent Dialog to main Window

If it’s actually independent, not something you’re creating, then this

dialog_progress.set_position(WindowPosition::CenterOnParent);

doesn’t make much sense… Center on what parent?

If it’s a dialog you’re creating then setting the main_window of your application as the parent of the dialog should get you the behavior you’re after.