[QScintilla] Background transparency

[Phil Thompson]

On 20 Oct 2015, at 9:14 p.m., Dr. Sam Aaron <samaaron at gmail.com> wrote:
> 
> Hi there,
> 
> We’re using QScintilla to much success in our live coding system Sonic Pi (http://sonic-pi.net) - Thanks for all your work!
> 
> One thing we’re trying to do now is to work on visualisations to go with the music. Our goal is to have a Qt widget displaying the graphics with the other Qt widgets for interaction above the graphics with some transparency.
> 
> Unfortunately we don’t seem to be able to make the background of the QScintilla widget transparent to let the widget behind it display through.
> 
> Ideally only the background would be transparent and the text opaque.
> 
> Has anyone tried this? This is where we’ve been discussing it: https://github.com/samaaron/sonic-pi/pull/747#issuecomment-149632212

Sorry, the underlying Scintilla code just doesn't support this.

Phil