TfrxBarcodeObject
 TfrxOLEObject
 TfrxChartObject
 TfrxRichObject
 TfrxCrossObject
 TfrxCheckBoxObject
 TfrxGradientObject

Add-in objects, which can be used in the report. These components themselves do not do anything; they are necessary for automatic adding the corresponding component's unit to the “Uses” list. If you attempt to open a report, where the connectable components are used, without including the given objects into the project, an error message will appear.