problem with combine Qt 5.4 QOpenGLContext to native opengl context

[jennal]

If Qt could render in native GL context, it is OK for me. As I know, Qt could render GUI widgets in GraphicView. It seems that Qt could render widgets in GL context. Can you show me some code sample of this?

Or the FBO solution could fit my need, I also need some code sample, because I have no idea how to begin with.

Could you please show me some code sample or link to the documents?

[wysota]

As I know, Qt could render GUI widgets in GraphicView.

GraphicsView is a widget. And the "widgets" it renders are not really widgets.

It seems that Qt could render widgets in GL context.

It probably could (at least since 5.4) but I don't think that would be a good approach.

Can you show me some code sample of this?

No

Or the FBO solution could fit my need, I also need some code sample, because I have no idea how to begin with.

Use the docs Luke -- QOpenGLFramebufferObject.