Windows Error 0xe06d7363 (WinError -529697949) when setting gain (Python sample code on Windows)

[gwappa]

Hi,

Thanks for providing the sample code like this!
I am trying to run tis-OpenCV.py, but the script keeps shutting down at line 79 (Python raises an OSError, with the error code as shown above):

Camera.SetPropertyValue("Gain", "Value", 1)

When I comment the line out, everything else works out as expected, up to the point when I hit Ctrl-C.

Do you have any idea about what is going on?

In case, below is the description of my environment:

• Windows 10 (probably the latest build as of July 2021)
• Anaconda
  • Python 3.8.10
  • NumPy 1.20.3
  • OpenCV 4.0.1
• IC-Imaging-Control-Samples bb2368
• Camera: DMK 33UP1300 (Driver version: 5.0.1.1607), through a USB3 cable

EDITED: forgot to mention about the acquisition configs. I tried several grayscale settings (Y16, full HD or 640p) with some frame rates (~30 fps, ~50 fps or ~60 fps), and obtained the same results.

Thanks,
Keisuke

[TIS-Stefan]

The gain minimum value of the DMK 33UP1300 is 144. Not 1.
Please try 144.

[gwappa]

Oh, I see. The line worked after I change the value to 144.
Is there a way to check the valid range of values, either programmatically or on the manual?

Thanks a lot!

[TIS-Stefan]

Yes, there should be a range or a minimum function.
At least, it is in the DLL. I am not sure, whether it is imported in Pyhton. (That is always double work,)

[TIS-Stefan]

I see, there are no property range / min / max functions imported in tisgrabber. py.
The function to be imported from the DLL is IC_GetPropertyValueRange. See "tisgrabber.h" for a short documentation of this function.

[gwappa]

Yeah, now I see it myself. Well, it seems anyway doable to export it to python for my own purpose anyway.

Everything becomes clear by now. Thanks again for your response!