If you plan to write code that uses the SDK directly, you can often find community-developed "wrappers" that make the SDK easier to use in specific languages.
According to the SourceForge project documentation:
If you need help getting the software to recognize your specific gear, tell me: What are you trying to read?
Here’s how SDK 3.5 compares to other versions:
Even with SDK 3.5, you may encounter roadblocks due to operating system permissions or hardware limitations. Here is how to fix them: "Camera Not Found" or "Device Disconnected"
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You must register as a developer on the Canon Developer Programme website.