How to catch TWAIN error if TwainOpenSource fails?

[Slava]

Hi Loic,

I seem not to be able to catch the error message "Can't locate SCSI device; check cable and power.(-4536)" when scanner is installed but unplugged. I want to do something else in the background instead of error message.
try - except still results in error message. Any idea's?

Kind regards,

Slava

[Loïc]

Hi Slava!

Unfortunately this error box came from your device driver.

As I know, there is any way to catch this kind of message .
However you get a look on your driver configuration to see what you can do.


Best regards,

Loïc