- o -

• object_category : CRhinoObjectIterator
• object_color_source : ON
• object_colors : CRhinoObjectColorComboBox , CRhinoPlotColorComboBox
• object_decoration : ON
• object_linetype_source : ON
• object_material_source : ON
• object_mode : ON
• object_state : CRhinoObjectIterator
• object_type : ON
• objectframe_flags : CRhinoObject
• OBSOLETE_DistanceDisplayMode : ON
• OBSOLETE_length_format : ON_DimStyle
• on_number_error : CRhinoUiEdit
• options_list_ctrl_styles : CRhinoUiOptionsListCtrl
• options_list_cursor : CRhinoUiOptionsListCtrl
• orientation : CRhinoUiTabbedSheetCtrl , IRhRdkThumbnails
• Orientation : ON_OutlineFigure
• Origin : ON_Font
• osnap_command : CRhinoAppSettings
• osnap_mode : CRhinoAppSettings , ON
• output_mode : CRhinoPrintInfo , CRhinoTextOut