If it has children (it may be category), then the same thing is done to
them.
*/
- void SetPropertyValueUnspecified( wxPGPropArg id );
+ void SetPropertyValueUnspecified( wxPGPropArg id )
+ {
+ wxPG_PROP_ARG_CALL_PROLOG()
+ wxVariant nullVariant;
+ SetPropVal(p, nullVariant);
+ }
#ifndef SWIG
/** Sets various property values from a list of wxVariants. If property with