can not read back error description in VB

[liuhongsg]

I am using: flex_get_error_description Lib "FlexMotion32.dll" (ByVal descriptionType%, ByVal errorCode&, ByVal commandID%, ByVal resourceID%, charArray%, sizeOfArray&) As Long. The definition for "charArray" is short, while VB does not provide such type. (In your old version, it is string type.). As such, how could I retrieve the error description?

[dmp]

This issue will be fixed in the next release of the NI-Motion driver. In the meantime, you basically need to change charArray% to ByVal charArray As String. Therefore, the correct prototype is as follows:

flex_get_error_description Lib "FlexMotion32.dll" (ByVal descriptionType%, ByVal errorCode&, ByVal commandID%, ByVal resourceID%, ByVal charArray As String, sizeOfArray&) As Long

I hope this helps!

Best regards,
Dawna P.
Applications Engineer
National Instruments