Using VB, when trying to stop image error message "runtime error 30807, Starting IMAQ operataion, Invalid Parameter #3 - see FRM for details". What is FRM? Note that when using the measurement Studio, grab images ok.
Heather, When getting an error with "...Invalid Parameter #3 - see FRM for details" you want to check that you have a step in your program that loads default values. Open the Grab shipping example ...program files/national instruments/ni-imaq/sample/vb/grab. Run this and see if you get the same error. If not make sure you have the CWIMAQ1.LoadInterfaceDefaults step in your exisiting code. If this does not help and you are still having trouble, please e-mail us and we can work from there. Best Regards, Chris D NI Applications Engineer