How to run in electron project?

[danhnd98]

Error: "a dynamic link library (dll) initialization routine failed with electron" with electron project
nodeJs: v12.18.3, electron: v15.3.0

[anhhtbk]

I have same problem on MacOS:
Error: dlopen(node_modules/dicom-dimse-native/build/Release/dcmtk.node, 1): no suitable image found. Did find:
node_modules/dicom-dimse-native/build/Release/dcmtk.node: mach-o, but wrong architecture
node_modules/dicom-dimse-native/build/Release/dcmtk.node: mach-o, but wrong architecture

[knopkem]

@anhhtbk The reason for this error is that there are no prebuild available (because I don't own a Mac and did not publish them), so it tries to load the dll build for windows which doesn't work. For Mac you will need to install the development tools and build it yourself: "npx cmake-js compile"

@danhnd98 I suspect the issue with electron is similar, as above. Basically you are cross-compiling your app (e.g. for android) but the native dll (c++) is not cross compiled, so it cannot load it. You also need to make electron compile it (which I don't know how it's done, sorry)

[knopkem]

Here are some pointers:
nodejs/node-addon-api#269
https://www.electronjs.org/docs/latest/tutorial/using-native-node-modules

[anhhtbk]

@knopkem Thanks for your response. I did try npx cmake-js compile. But I don't know how to config cmake to build. Do you have any suggestions?

[knopkem]

You don't need to configure it, the project should be already set correctly. All you need is to have cmake installed and in PATH. Basically, cmake-js is a wrapper that needs to call it. Of course you then need to have a c++ compiler (clang on Mac ) installed for it to compile

[anhhtbk]

@knopkem I did some step:

• run cmake-js rebuild -a arm64 => build success
• copy file dcmtk.node in path dicom-dimse-native/build/Release/dcmtk.node to my node_modules in pathdicom-test/node_modules/dicom-dimse-native/build/Release/dcmtk.node
• run nom start => error:

dlopen(node_modules/dicom-dimse-native/build/Release/dcmtk.node, 1): no suitable image found. Did find:
node_modules/dicom-dimse-native/build/Release/dcmtk.node: mach-o, but wrong architecture
node_modules/dicom-dimse-native/build/Release/dcmtk.node: mach-o, but wrong architecture

Did I wrong which step?

[knopkem]

this sounds right what you did. I would delete the build folder than rebuild than run the examples, e.g. run example:echoscu

[anhhtbk]

@knopkem I did it. It runs ok. But when I move it to my electron project, it has the same error above.

[knopkem]

@anhhtbk got my hands on a mac and added a prebuild. Can you try importing the module via npm in your project, it should now work out of the box. You can also try https://github.com/knopkem/dicomweb-proxy which uses it already. Let me know.