TypeError: No method matches given arguments for SetContext: (<class 'int'>)
I got my initial code working on the C DLL and it's creating snapshot sets as I want. I am now having a problem with a function to query ALL the snapshots. This value can be sent to SetContext() In [39]: alphavsslib.VssSnapshotContext.All Out[39]: 4294967295 4294967295 = 0xFFFFFFFF A sample of the call is here: https://github.com/alphaleonis/AlphaVSS-Samples/blob/8482e83dd13cb8467860e8b... # this is the declaration of SetContext virtual void SetContext(VssSnapshotContext context); This is the declaration for All: VssSnapshotContext.All = 0xFFFFFFFF https://github.com/alphaleonis/AlphaVSS/blob/13462e657f7993da5c80f835d219bbe... However, this line results in a Type error In [40]: ctx = cmp.SetContext(alphavsslib.VssSnapshotContext.All) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) Input In [40], in <cell line: 1>() ----> 1 ctx = cmp.SetContext(alphavsslib.VssSnapshotContext.All) TypeError: No method matches given arguments for SetContext: (<class 'int'>) I've tried converting the value using: ctx = cmp.SetContext(System.Convert.ToUInt32(alphavsslib.VssSnapshotContext.All)) *And* ctx = cmp.SetContext(ctypes.c_uint32(alphavsslib.VssSnapshotContext.All).value) but the same error occurs I can get the function to succeed (albeit it doesn't show me what I want) with this: cmp.SetContext(ctypes.c_int32(alphavsslib.VssSnapshotContext.All).value) ... because ctypes.c_int32(alphavsslib.VssSnapshotContext.All).value = -1 I believe it's possible that this could be related to the link below but I can't be sure because I am not a C developer and I can't determine how this was fix from the notes in the link. Granted, the author is on CentOS, and I'm on Windows... but the backstory behind the issue sounds like it's related. https://github.com/pythonnet/pythonnet/issues/950 I'm currently running on pythonnet 2.5.2 and Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:36:42) [MSC v.1929 64 bit (AMD64)] on win32 Any thoughts or suggestions would be greatly appreciated. Steven
what about a wrapper like you do in c# platoform invoke? “The desire that guides me in all I do is the desire to harness the forces of nature to the service of mankind. ”Nikola Tesla“Radio Power Will Revolutionize the World” (Modern Mechanix & Inventions, July, 1934) On Thursday, July 14, 2022 at 03:59:13 PM EDT, Steven Manross <steven@manross.net> wrote: I got my initial code working on the C DLL and it’s creating snapshot sets as I want. I am now having a problem with a function to query ALL the snapshots. This value can be sent to SetContext() In [39]: alphavsslib.VssSnapshotContext.All Out[39]: 4294967295 4294967295 = 0xFFFFFFFF A sample of the call is here: https://github.com/alphaleonis/AlphaVSS-Samples/blob/8482e83dd13cb8467860e8b... # this is the declaration of SetContext virtualvoidSetContext(VssSnapshotContext context); This is the declaration for All: VssSnapshotContext.All=0xFFFFFFFF https://github.com/alphaleonis/AlphaVSS/blob/13462e657f7993da5c80f835d219bbe... However, this line results in a Type error In [40]: ctx = cmp.SetContext(alphavsslib.VssSnapshotContext.All) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) Input In [40], in <cell line: 1>() ----> 1 ctx = cmp.SetContext(alphavsslib.VssSnapshotContext.All) TypeError: No method matches given arguments for SetContext: (<class 'int'>) I’ve tried converting the value using: ctx = cmp.SetContext(System.Convert.ToUInt32(alphavsslib.VssSnapshotContext.All)) *And* ctx = cmp.SetContext(ctypes.c_uint32(alphavsslib.VssSnapshotContext.All).value) but the same error occurs I can get the function to succeed (albeit it doesn’t show me what I want) with this: cmp.SetContext(ctypes.c_int32(alphavsslib.VssSnapshotContext.All).value) … because ctypes.c_int32(alphavsslib.VssSnapshotContext.All).value = -1 I believe it’s possible that this could be related to the link below but I can’t be sure because I am not a C developer and I can’t determine how this was fix from the notes in the link. Granted, the author is on CentOS, and I’m on Windows… but the backstory behind the issue sounds like it’s related. https://github.com/pythonnet/pythonnet/issues/950 I’m currently running on pythonnet 2.5.2 and Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:36:42) [MSC v.1929 64 bit (AMD64)] on win32 Any thoughts or suggestions would be greatly appreciated. Steven _______________________________________________ PythonNet mailing list -- pythonnet@python.org To unsubscribe send an email to pythonnet-leave@python.org https://mail.python.org/mailman3/lists/pythonnet.python.org/ Member address: rharding64@yahoo.com
Are you suggesting I write C code to wrap the SetContext call with something? That’s somewhat out of my league and don’t really know how to build C or C# code (or possibly wrap it into the existing DLL code). Python, Perl, VBScript, JavaScript, bash, batch and a few others are in my wheelhouse. I tried doing C a long time ago, but I’ve resigned myself to the truth that it’s not going to happen in my lifetime. I can read it (somewhat), but I don’t understand enough to build something useful and or know what is good or bad form. ☹ Thanks for the suggestion, though! Steven From: Ron Harding via PythonNet <pythonnet@python.org> Sent: Thursday, July 14, 2022 1:28 PM To: A list for users and developers of Python.NET <pythonnet@python.org> Cc: Ron Harding <rharding64@yahoo.com> Subject: [Python.NET] Re: TypeError: No method matches given arguments for SetContext: (<class 'int'>) what about a wrapper like you do in c# platoform invoke? “The desire that guides me in all I do is the desire to harness the forces of nature to the service of mankind. ”Nikola Tesla“Radio Power Will Revolutionize the World” (Modern Mechanix & Inventions, July, 1934) On Thursday, July 14, 2022 at 03:59:13 PM EDT, Steven Manross <steven@manross.net<mailto:steven@manross.net>> wrote: I got my initial code working on the C DLL and it’s creating snapshot sets as I want. I am now having a problem with a function to query ALL the snapshots. This value can be sent to SetContext() In [39]: alphavsslib.VssSnapshotContext.All Out[39]: 4294967295 4294967295 = 0xFFFFFFFF A sample of the call is here: https://github.com/alphaleonis/AlphaVSS-Samples/blob/8482e83dd13cb8467860e8b... # this is the declaration of SetContext virtual void SetContext(VssSnapshotContext context); This is the declaration for All: VssSnapshotContext.All = 0xFFFFFFFF https://github.com/alphaleonis/AlphaVSS/blob/13462e657f7993da5c80f835d219bbe... However, this line results in a Type error In [40]: ctx = cmp.SetContext(alphavsslib.VssSnapshotContext.All) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) Input In [40], in <cell line: 1>() ----> 1 ctx = cmp.SetContext(alphavsslib.VssSnapshotContext.All) TypeError: No method matches given arguments for SetContext: (<class 'int'>) I’ve tried converting the value using: ctx = cmp.SetContext(System.Convert.ToUInt32(alphavsslib.VssSnapshotContext.All)) *And* ctx = cmp.SetContext(ctypes.c_uint32(alphavsslib.VssSnapshotContext.All).value) but the same error occurs I can get the function to succeed (albeit it doesn’t show me what I want) with this: cmp.SetContext(ctypes.c_int32(alphavsslib.VssSnapshotContext.All).value) … because ctypes.c_int32(alphavsslib.VssSnapshotContext.All).value = -1 I believe it’s possible that this could be related to the link below but I can’t be sure because I am not a C developer and I can’t determine how this was fix from the notes in the link. Granted, the author is on CentOS, and I’m on Windows… but the backstory behind the issue sounds like it’s related. https://github.com/pythonnet/pythonnet/issues/950 I’m currently running on pythonnet 2.5.2 and Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:36:42) [MSC v.1929 64 bit (AMD64)] on win32 Any thoughts or suggestions would be greatly appreciated. Steven _______________________________________________ PythonNet mailing list -- pythonnet@python.org<mailto:pythonnet@python.org> To unsubscribe send an email to pythonnet-leave@python.org<mailto:pythonnet-leave@python.org> https://mail.python.org/mailman3/lists/pythonnet.python.org/ Member address: rharding64@yahoo.com<mailto:rharding64@yahoo.com>
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Ron Harding -
Steven Manross