This method is called to allow the class object to specify its default help panel for its instances.
#define INCL_WINWORKPLACE
#include <os2.h>
M_WPObject *somSelf; /* Pointer to the WPObject class object. */
PULONG HelpPanelId; /* Pointer to the help panel which provides help for this class. */
PSZ HelpLibrary; /* Pointer to the buffer in which to place the name of the Help library. */
ULONG rc; /* Success indicator. */
rc = _wpclsQueryDefaultHelp(somSelf, HelpPanelId,
HelpLibrary);