Type conversion problem #2375
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Hi I got the same question. Did you figure it out? Like how to convert imgBuf into the ref type needed in C# function? Thank you! |
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Hi, unfortunately no, i stopped trying. |
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I spent time on this and managed to figure it out, sort of... # System.ArgumentException: PylonC.NET.PylonBuffer`1[System.Byte] value cannot be converted to PylonC.NET.PylonBuffer`1[T] in method .....Apparently, you can construct a specific type of the function like: grabFrame = Pylon.DeviceGrabSingleFrame[Byte]
ret = grabFrame(hDev, Int32(0), imgBuf, grabResult, UInt32(500))In most cases i think this would work, but in my case i need to pass imgBuf and grabResult by reference that cannot be done in pythonnet. |
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I am trying to interface with a .NET dll to read stuff from a camera and i have trouble figuring out the types for a function call. Admittedly i have just started using pythonnet so my problem might be trivial.
Here is the truncated version of my program:
I have doubts if the imgBuf = PylonBufferByte is equivalent to the original c: PylonBuffer imgBuf = null;
But mainly the type conversion error is what i have no idea why it doesnt work. I am certain that Byte is a valid type for PylonBuffer.
With dnSpy i looked into the problematic function and found this:
Also im not sure how to deal with the ref and out keywords.
Any help is welcomed,
Thank you
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