>The VFP8 documentation talks about the MemberClass, MemberClassLibrary, HeaderClass and HeaderClassLibrary properties which enable the Grid and Column objects respectively to specify from where their contained objects inherit.
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>However, these don't seem to appear in the base classes which the Class Browser presents when you wish to define a new class.
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>Am I missing something, or are these new classes only definable in code like the Empty class, or what?

Hi Evan. The answer to your question in short is: correct. For more information on this... I designed and wrote the Class Browser for VFP 3.0 and I have updated it for each version, including the enhancements made for VFP 8.0 which were mainly adding the new base classes in VFP 8.0 now supported in the Class Designer (VCX) system. The classes that you list above are classes that can be subclassed in PRG (using DEFINE CLASS) but not in the visual Class Designer (VCX), which is why they are not listed in the Class Browser. If you enter CREATE CLASS in the command window and see the drop down list in that dialog, you will see a list of which classes are available to be subclasses in the Class Designer (VCX) system.