Promoting widget to QGLWidget



  • Hi.

    I'm creating a simple gui project dropping a widdget(of type QWidget) into form.ui and then I want to promote it to QGLWidget. For some reason this class is not listed in the base class name list.

    Also when I was creating a GLWidget class to inherit from QGLWidget I had to type its name in the base class field manually. It was not on that list either.

    If anyone could please help me finding the reason why am I missing this class. I checked on the presence of QGLWidget.h in ../qt folder../ and it is there as it should be.

    Also what tried was to manually write there the name of the class I want to promote my widget to (QGLWidget) and straight away after doing that I am getting an error saying:
    " fatal error LNK2019: unresolved external symbo public: _cded GLWidget::GLWidget(class QObject *) ..........etc...."
    " fatal error LNK1120: 1 unresolved externals"


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