You can use the lpOLEObject property in Visual Basic to determine the memory address of an OLE object. The lpOLEObject property returns a pointer to IOLEObject.
Setting
You can use the lpOLEObject property to refer to the address of the active OLE object. If no object is displayed, the setting is 0. The lpOLEObject property setting is a Long data type value specified by Microsoft Access.
This property setting isn't available in Design view and is read-only in other views.
Remarks
In the OLE dynamic link libraries (DLLs), many function calls require the address of the OLE object as an argument. You can pass the value specified by the lpOLEObject property when making application programming interface (API) calls to the OLE DLLs.
Note If an API call is made to a function that makes a callback to the control, the results will be unpredictable.