Home/ Questions/Q 258939
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-11T22:13:21+00:00

I’m wondering how to make a window transparent, not cutout holes or the same

  • 0

I’m wondering how to make a window transparent, not cutout holes or the same transparency overall.

Well, just say I want to slap a PNG image of a rose or something and have it blend nicely with stuff behind and allow stuff behind to redraw and have their changes shine through the transparent parts of the picture/window.

I could (or would like to) use something like wxWidgets or OpenGL. But rather not Qt or GTK.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I found out that it’s actually pretty simple to throw up a transparent picture on the screen using wxW:

    wxScreenDC dc;

wxBitmap bmp(wxT("test.png"), wxBITMAP_TYPE_PNG);
dc.DrawBitmap(bmp, 250, 100, true);

    Now I has to find out how to handle updates and such, it has to be ( maybe partially redrawn ) when something beneath updates.

    As it is right now it just redraws itself ontop of itself, making it become fully opacue in a while.

    There was another version of wxScreenDC::DrawBitmap that took a window as an argument, maybe it’s that one solves this?

    • 0