Converting QWidget to QGLWidget in Qt Creator

[Zamaster]

(see title) I'm a newcomer to Qt and have read some tutorials online about using OpenGL with Qt. I found one that I cannot seem to find that renders to an openGl framebuffer that is then rendered to (what starts as) a QWidget. There was some step in making the QWidget a QGLWidget but I remember that it used the GUI designer to get the layout right etc... How does one go about doing this? Thanks!

[ChrisW67]

I think you want the promotion feature in Designer:
http://qt-project.org/doc/qt-5/designer-using-custom-widgets.html

• Drop a QWidget on your form
• Right click it and select "Promote to..."
  ** Base class name : QWidget
  ** Promoted class name: QGLWidget
  ** Header file: QGLWidget
  ** Global include: checked
• Click Add then Promote

[Zamaster]

Yes! This was it, thanks a lot!