I would be interested if any of you can duplicate this strange issue.

If I run the attached program and then click on the 'Print Setup' tag, I get the following: -

<IMG src="https://www.cogier.com/gambas/PrintBroken.png"> </IMG>

If I remove the ComboBox from the FMain Form and rerun the program, I get this: -

<IMG src="https://www.cogier.com/gambas/PrintOK.png"> </IMG>

same on Manjaro xfce with gambas 3.15.2 …

strange  

 I get the same results as you. It is a component problem
changing to :   gb.gui.opengl, seems to fix it

Thanks everyone. I did know that it was only GTK3 that had the issue. I didn't want to use GTK2 as it's now getting old and with QT the printer dialogue box requires the pressing of another button to get access the 'Number of pages' to print option.

I put this issue on the Gambas mailing list and have received the following: -

Fixed in commit Fix GTK+3 'get_preferred_height_and_baseline_for_width' overriding. (d2349cdb) · Commits · Gambas / gambas · GitLab.

Regards,

–
Benoît Minisini