This method is specific to version 3, or higher, of the OS/2 operating system.

This class method returns the system button appearance.

#define INCL_WINWORKPLACE
#include <os2.h>

M_WPObject     *somSelf;       /*  Pointer to the WPObject class object. */
ULONG           ulButtonType;  /*  Flag indicating the system default button appearance. */

ulButtonType = _wpclsQueryButtonAppearance(
                somSelf);