- o -

• ObstacleType : QgsLabelObstacleSettings , QgsPalLayerSettings
• OffsetType : QgsPalLayerSettings
• OneArgOperator : QgsRasterMatrix
• OperationResult : QgsGeometry
• Operator : QgsRasterCalcNode
• Options : QgsVectorLayerSaveAsDialog
• OptionType : QgsVectorFileWriter
• Ordering : QgsSourceSelectProvider
• Orientation : QgsColorRampWidget , QgsCurve , QgsLayoutItemPage , QgsTextDiagram
• Origin : QgsMapLayerDependency
• OutputValues : QgsKernelDensityEstimation
• OverwriteBehavior : QgsNewGeoPackageLayerDialog