PropertyHandle :: GetInstance - Get current instance
The function returns the current instance. If no instance is selected the function returns an empty instance area (instance.GetData() returns NULL).
Return value: Instance area ( ::Instance )
Instances do have the type of the referenced property handle (collection type). The instance contains a pointer to a properly structured instance area.
You can use the !-operator or the GetData() function to check whether the instance refers to data or not.