I just committed a fix for this issue and for another layout issue of the debugger-setting dialog.
It is not possible to set MinSize via wxSmith in xrc-files, only in wxs-files, which generate sourcees and headers.
This seems to be by design in wxSmith, but I think this coud probably be told a bug.
But even with a patched wxSmith, that can set the MinSize of the textctrl in the xrc it does not work correctly.
The xrc looks like the one with the patch of oBFusCATed and this is ignored.
If I set the MinSize inside the surrounding sizeritem object directly in xrc (like it was in the select-target dialog) it works, but wxSmith removes it if it touches the xrc the next time, and the patched wxSmith, sets it inside the textctrl-object (like oBFusCATed's patch) , what does not work.
By the way, the minsize-tag in select-target* xrc-file does not exist anymore, but option is set to 1 instead.
This works for selected-target diialog, but unfortunately not in debugger-settings, so I decided to fix it inside the cpp-file which loads the xrc, as the txtctrl is touched there anyway.