Called by the framework to handle persistence of a version number.
virtual BOOL ExchangeVersion(
DWORD& dwVersionLoaded,
DWORD dwVersionDefault,
BOOL bConvert
);
Parameters
dwVersionLoaded
Reference to a variable where the version number of the persistent data being loaded will be stored.dwVersionDefault
The current version number of the control.bConvert
Indicates whether to convert persistent data to the current version or keep it at the same version that was loaded.
Return Value
Nonzero if the function succeeded; 0 otherwise.
Requirements
Header: afxctl.h