Uses an application-defined comparison function to sort groups by ID within a list view control.
BOOL SortGroups(
   PFNLVGROUPCOMPARE _pfnGroupCompare,
   LPVOID _plv 
);
Parameters
- _pfnGroupCompare 
 A pointer to the group comparison function.
- _plv 
 A void pointer.
Return Value
Returns true on success, false on failure.
Remarks
This member function emulates the functionality of the LVM_SORTGROUPS message, as described in the Windows SDK.
Requirements
Header: afxcmn.h