DesktopOLEContainer.Content

From Xojo Documentation

Property (As OLEObject )
aDesktopOLEContainer.Content = newOLEObjectValue
or
OLEObjectValue = aDesktopOLEContainer.Content

New in 2021r3

Supported for all project types and targets.

The OLEObject associated with the ActiveX control. You use this to automate the ActiveX control.