<p>Is it possible to determine which property of an ActiveX control is the default property? For example, what is the default property of the VB6 control CommandButton and how would I found out any other controls default!</p>

<p><strong>/EDIT:</strong> Without having source to the object itself</p>

I don't use VB, but here it goes.
I found
Using the Value of a Control
, but it's not a programmatic solution.
If you have access to the code, look for
```
```
Attribute Value.VB_UserMemId = 0
```
```
using Notepad.