typedef enum tagHH_GPROPID
{
    HH_GPROPID_SINGLETHREAD=1,      
    HH_GPROPID_TOOLBAR_MARGIN=2,    
    HH_GPROPID_UI_LANGUAGE=3,       
    HH_GPROPID_CURRENT_SUBSET=4,    
    HH_GPROPID_CONTENT_LANGUAGE=5   
} HH_GPROPID;