This method is called to allow the class object to specify its details to be used for its instances.

#define INCL_WINWORKPLACE
#include <os2.h>

M_WPObject        *somSelf;          /*  Pointer to the WPObject class object. */
PCLASSFIELDINFO    pClassFieldInfo;  /*  Pointer to details information. */
PULONG             pSize;            /*  Total number of bytes of details data. */
ULONG              ulReturn;         /*  Sum of the number of detail columns for the object. */

ulReturn = _wpclsQueryDetailsInfo(somSelf,
             pClassFieldInfo, pSize);