DocumentationMQL5 ReferenceStandard LibraryGraphic ObjectsControl ObjectsCChartObjectEditY_SizeY_SizeY_SizeSets the value for “Y_Size” property.bool Y_Size( int size // property value )Parameters size[in] New value for “Y_Size” property.Return Value true - success, false - cannot change the property.Last updated on 2026-07-24X_SizeBackColor