this->d_1_0_Core was nullptr. When using glEnable

[mDanz]

Hi,

I'm trying to use glEnable and other OpenGL functions in Qt 5.8 on Windows 10 in Visual Studio 14. It doesn't matter which GL function I call each time a nullptr exception is thrown:

Exception thrown: read access violation. this->d_1_0_Core was nullptr.

I'm using QOpenGLFunctions_4_5_Compatibility and call initializeGL() before glEnable(). Here is my code:

void OpenGLWidget::initializeGL()
{
	initializeOpenGLFunctions();
	glEnable(GL_LIGHTING);
	glEnable(GL_LIGHT0);

}

What am I doing wrong? Do I have to include some special libs or headers?

Best regards,
mDanz

[SGaist]

Hi and welcome to devnet,

Did you request the matching QSurfaceFormat ?