Catching serial device connection exception

General
1

I have a Windows desktop app on Xojo 2025v1.1 and it connects to one or more serial (usb) devices. All works fine until I test the scenario when a device is being used by another app.

The Try..Catch doesn’t pick up the exception at all as in the screenshot below. I initially had Catch e as IOException then modified it to simply Catch but still doesn’t pick it up. This is even there’s a clearly listed IOException in the IDE.

Any ideas please, surely it should catch any exceptions? Thanks

Xojo-Connect-Error
Xojo-Connect-Error639×305 12.4 KB

2

Catch e As IOException

3

The screenshot shows the location where the error occurs at the moment the error occurs.
If you then proceed a step further in the debugger, your exception handling should be triggered.

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4

If you want the debugger to just automatically catch the exception, wrap the try-catch-end try with:

#pragma breakonexceptions False

... code

#pragma breakonexceptions Default
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5

:man_facepalming:
Of course! The debugger breaks on an exception in any case! My bad, I really didn’t consider that. Thanks

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