This class is the superclass of native graphics objects like pens etc. It allows reference counting. Not instantiated by user code.
wxGraphicsBrush, wxGraphicsPen, wxGraphicsMatrix, wxGraphicsPath
wxGraphicsRenderer* GetRenderer() const
Returns the renderer that was used to create this instance, or NULL if it has not been initialized yet
bool IsNull() const
Is this object valid (false) or still empty (true)?