PARAMFLAG Constants

Specifies parameter flags.

Constant/value	Description
PARAMFLAG_NONE 0	Whether the parameter passes or receives information is unspecified. IDispatch interfaces can use this flag.
PARAMFLAG_FIN 0x1	Parameter passes information from the caller to the callee.
PARAMFLAG_FOUT 0x2	Parameter returns information from the callee to the caller.
PARAMFLAG_FLCID 0x4	Parameter is the LCID of a client application.
PARAMFLAG_FRETVAL 0x8	Parameter is the return value of the member.
PARAMFLAG_FOPT 0x10	Parameter is optional. The pPARAMDescEx field contains a pointer to a VARIANT describing the default value for this parameter, if the PARAMFLAG_FOPT and PARAMFLAG_FHASDEFAULT bit of wParamFlags is set.
PARAMFLAG_FHASDEFAULT 0x20	Parameter has default behaviors defined. The pPARAMDescEx field contains a pointer to a VARIANT that describes the default value for this parameter, if the PARAMFLAG_FOPT and PARAMFLAG_FHASDEFAULT bit of wParamFlags is set.
PARAMFLAG_FHASCUSTDATA 0x40	Parameter has custom data.

Requirements

Header	OaIdl.h