Canon’s developer program has improved slightly over the years, but it remains a walled garden. If you want better documentation:
IntPtr camera; EDSDK.EdsGetChildAtIndex(cameraList, 0, out camera); EDSDK.EdsOpenSession(camera); canon edsdk documentation
The Canon EOS Digital SDK (EDSDK) facilitates deep, USB-tethered control over Canon cameras for Windows and macOS applications, enabling remote capture, settings management, and live view monitoring. It provides developers with tools for automated photography, including image transfer and multi-camera handling, supported by comprehensive documentation available through the Canon Developer Programme. For more details, visit Canon Europe . SDK | Canon U.S.A., Inc. Canon’s developer program has improved slightly over the