IUIX_Cmd::UserData Property
From PDF XChange PDF SDK
Property UserData of interface IUIX_Cmd returns/sets Value of PARAM_T containing custom user data that can be stored with the command as a parameter.
Syntax
HRESULT get_UserData([out, retval] PARAM_T* nData); HRESULT put_UserData([in] PARAM_T nData);