Is there any way to determine the contents of another window?

[MartinSmith]

I am still trying to find a way to programmatically get the text out of a window similar to the one shown in the attached screen shot.

The Text I am interested in is from the "Supplier Letter Fields" header through to the "Custom Fields" footer.

This all seems to be in one child window with the following details:

Class = AfxWnd42
Style = &H52000000
Handle = &H706EE
ID = &H0

Using the GetWindowText API for this window returns a zero length string

What other approach can I take to programmatically retrieve this info?

Thanks in advance for any assistance.