Can you open an issue on github.com/pythonnet/pythonnet? Please report your environment, such OS, versions of Python, .NET, pythonnet.
You are trying to pass numpy array to .NET method that only accepts `ushort[frameSize / 2]`. Try creating the same .NET array from pythonnet and passing it instead. On Thu, Mar 9, 2017, 12:33 PM Aloter One <alo...@gmail.com> wrote: > Hello, > > I'm trying to use pythondotnet to communicate with a camera (from Xenics), > it has a C# wrapper. > > From their documentation it seems I need to send the following to grab a > frame: > > XCamera::GetFrame ( FrameType > *type*, > unsigned long *ulFlags*, > void * *buffer*, > unsigned int *size* > ) > In their C# example they create the buffer by: > UInt32 frameSize = camera.FrameSize; > frameBuffer = new ushort[frameSize / 2]; > and call the function: > GetFrame(FrameType.Native, XGetFrameFlags.Blocking, frameBuffer, > frameSize); > > I've tried to emulate it by creating the buffer in python: > > frameSize = np.uint32(camera.FrameSize) > frameBuffer = np.empty([int(frameSize/2), 1], dtype=np.ushort) > > However when I try to call the function (camera is an XCamera object from > their dll, FrameType and XGetFlags are defined in their dll also. > > camera.GetFrame(FrameType.Native, XGetFrameFlags.Blocking, frameBuffer, > frameSize) > > I get an error I'm not sending the right variables to the function: > > "TypeError: No method matches given arguments" > > Do I need to send the actual buffer pointer to the function? How to > implement it in pythondotnet? > > Thank you! > _________________________________________________ > Python.NET mailing list - PythonDotNet@python.org > https://mail.python.org/mailman/listinfo/pythondotnet
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