XPC Resources

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XPC is the preferred inter-process communication (IPC) mechanism on Apple platforms. XPC has three APIs:

  • The high-level NSXPCConnection API, for Objective-C and Swift

  • The low-level Swift API, introduced with macOS 14

  • The low-level C API, which, while callable from all languages, works best with C-based languages

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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