[Qt] QOpenGLWidget override initializeGL and paintGL

[zeljko]

On 05/25/2017 08:28 PM, max via Qt wrote:
> How add QOpenGLWidget  to qt5 bindings ?
>
> Render OpenGL  need override  few virtual functions: initializeGL and
> paintGL.
>
> How implement virtual functions ?

It's not big problem to add QOpenGLxx to bindings but that's something I 
don't like. Qt5Pas should contain only base gui and widgets, maybe 
create separate Qt5PasOpenGL and qt5opengl.pas.
I've already added QSurface, QSurfaceType and QWindow classes which can 
be used for openGl

zeljko