@mojo: After a full reading of GenToo Linux Wiki on the subject, I went to my SliTaz 4 machine and tried to put those hints into action.
Adding an "Extensions" section to xorg.conf
was trivial.
So was using Desktop Effects / Activate composite
.
To that point, no transparency was in effect.
When I use Desktop Effects / Set opacity (click)
, my system allows my small transparency-practicing program to show some translucent effect. That's not what I am looking for.
When in WX, this simple prototype sports a border and a tittle bar, with "¡Hola, mundo!" (Spanish for Hello, world!; quite original, isn't it?) in big, black characters over a transparent background.
When in SliTaz, running the same prototype with mono just gets it with ¡Hola, mundo! shown over a lime-green background (lime-green is the colour I told VisualStudio to use as the TransparencyKey value for the form).
When I hit Set opacity (click)
, all form opacity is affected (as I would have guessed beforehand, anyway). I just need the text background to be transparent, but not the text itself.
I have observed that, when I switch Composite on, the border of the text box gets temporarily transparent. Whatever activity in the screen gets that effect back to normal, no matter what I do.
I'll further study xcompmgr options and report my results back here.
Thank you so much anyway.
Kind regards,