Not a question but a bit of knowledge I've worked out which may be useful.
In my lovely Infragistics app, where practically no checks work in combo's or context menu's to check the text items in it, I have to use the bitmap check to check them. After much fiddling I've worked out the following:
To capture the context menu itself, in the bitmap check: use Capture window, pause 5 sec, client area only and take focus before capture.
Then use the identify button to right click, hover over the context menu then it will be captured.
I had to do something slightly different to capture the combo boxes
use Capture window, pause 5 sec, client area only
do not use take focus before capture.
Then use the identify button to click on the combo so it drops out, hover over the combo then it will be captured.
Hopefully this may help someone!
TestPartner 6.3, Visual Tests
Application under test: Client/Server based, C# .Net App with Infragistics Presentation layer
Database: SQL 2000/2005