Using Magick.NET on HoloLens 2

[dgblack]

Hi, I am trying to use this on a HoloLens 2 (Universal Windows Platform, ARM64). I'm building the application using C# in Unity and have included the pre-built DLLs from the latest release in the correct locations: I have Magick.NET.Core.dll for all CPUs, Magick.NET-Q16-arm64.dll, and Magick.Native-Q16-arm64.dll (for Windows).

First, I am unsure which of these I actually need - if I have the core library, are the arm64-specific ones needed? Also, when I build and deploy to the HoloLens 2 and try to run it, I get the following error message:

DllNotFoundException: Unable to load DLL 'Magick.Native-Q16-arm64.dll'. Tried the load the following dynamic libraries: Unable to load dynamic library 'Magick.Native-Q16-arm64.dll' because of 'Failed to open the requested dynamic library (0x06000000) - The specified module could not be found. (WinError:0000007e)
at ImageMagick.Environment.Initialize () [0x00000] in <00000000000000000000000000000000>:0
at ImageMagick.MagickSettings+NativeMagickSettings..cctor () [0x00000] in <00000000000000000000000000000000>:0
at ImageMagick.MagickSettings..ctor () [0x00000] in <00000000000000000000000000000000>:0
at ImageMagick.MagickImage..ctor (System.Byte[] data) [0x00000] in <00000000000000000000000000000000>:0
at VideoChannel.WriteImage (System.Byte[] image) [0x00000] in <00000000000000000000000000000000>:0

Rethrow as TypeInitializationException: The type initializer for 'ImageMagick.MagickSettings.NativeMagickSettings' threw an exception.
at ImageMagick.MagickSettings..ctor () [0x00000] in <00000000000000000000000000000000>:0
at ImageMagick.MagickImage..ctor (System.Byte[] data) [0x00000] in <00000000000000000000000000000000>:0
at VideoChannel.WriteImage (System.Byte[] image) [0x00000] in <00000000000000000000000000000000>:0

I think this means the native DLL is failing to find its dependencies because it depends on win32 APIs rather than UWP? If so, is it possible to build for UWP? (Sorry, my knowledge of these is limited)

Thank you!

[dlemstra]

I don't think this library is compatible with UWP but it in an other users got this working. That was probably on x64 and not arm64. Maybe you can check the dependencies with some tooling?

[dgblack]

Thanks very much for the quick answer! That's what I feared. I used Dependency Walker and it has win32 dependencies as far as I understand, so I'll have to try something else. Don't have the bandwidth to spend a lot of time on this unfortunately... Thank you!