Accessing contents of VB6 Data Grid from AutiIt script

Question

I'm using an AutoIt script to access data from a application developed in Visual Basic 6.

Data in all controls can be accessed using Control*() functions. However, Data Grid and Data List controls (their class names: DataGridWndClass and DataListWndClass) don't respond to ControlListView() function.

What is the way to access their contents?

Thanks.