Since GTK3 my programs look awful on some distris

[Didelphodon]

I found out that since PB's change to GTK3 my programs look pretty awful on some distris (REMnux i.e.). Switching back to GTK2 is not possible, though, as the compile step afterwards throws a bunch of linker errors.

The following screenshots (note that the GUI layout has changed intentionally over the last versions) shows how the controls suck (hard corners, etc.) now (and scrollbars ruin the whole scene if there are some) ...

GTK2:


GTK3:


Is there anything I can do?

[DarkDragon]

It should be dependent on your GTK3 theme. Have you tried using a different one? Here are some:
https://www.gnome-look.org/browse/cat/135/ord/latest/

The default theme on gnome is adwaita.

[Didelphodon]

Hm, played around a bit but nothing changes. However, what I'm not sure is, I changed the theme with lxappearance but it seems to not influence my application in any way, though it surely has an impact on every other - is changing the wrong GTK? Not sure how I can specifically change GTK3 or GTK2 - how do I find out in which mode my program is running?

[DarkDragon]

Hm, played around a bit but nothing changes. However, what I'm not sure is, I changed the theme with lxappearance but it seems to not influence my application in any way, though it surely has an impact on every other - is changing the wrong GTK? Not sure how I can specifically change GTK3 or GTK2 - how do I find out in which mode my program is running?

This should help: https://wiki.archlinux.org/index.php/GT ... figuration

GTK+ 3 user specific: $XDG_CONFIG_HOME/gtk-3.0/settings.ini, or $HOME/.config/gtk-3.0/settings.ini if $XDG_CONFIG_HOME is not set
GTK+ 3 system wide: /etc/gtk-3.0/settings.ini

[Didelphodon]

Installed the gtk3 oxygen theme via apt-get, selected it through lxappearance (which had it listed then) which finally made my app looking good again.

Thx for hints!

[marcoagpinto]

To use GTK2 in the subsystem or sublibrary write: gtk2

You must have the GTK2 package:
sudo apt-get install libgtk2.0-dev

I too am still using the gtk2 because of issues with the 3.

[Didelphodon]

To use GTK2 in the subsystem or sublibrary write: gtk2

You must have the GTK2 package:
sudo apt-get install libgtk2.0-dev

I too am still using the gtk2 because of issues with the 3.

If you are using specific things like Scintilla you're bound to 3 as you'd get compiler errors with 2 - at least I do.

[mocitymm]

To use GTK2 in the subsystem or sublibrary write: gtk2

You must have the GTK2 package:
sudo apt-get install libgtk2.0-dev

I too am still using the gtk2 because of issues with the 3.

Speaking of which... and this is a 'noob' to PureBasic question, per the above quoted comments; can you force PureBasic to use a specific GTK library over the standard one installed (as in v.2 over v.3)?

And if you can, where might I find information on that?

Thanks.