The Canon EOS Digital Camera SDK (EDSDK) enables developers to control Canon cameras via USB/PTP for tasks such as remote shooting, live view, and settings management, with support for Windows, macOS, and Linux. Access to the documentation, API specifications, and sample programs requires registration through the official Canon Developer Programme. To access the documentation, register at the Canon Developer Portal Canon Developer Programme How to Get Access to Camera SDK?
If you are starting a commercial project, factor in at least 2-3 weeks of "documentation archaeology" before writing production code. canon edsdk documentation
: Stream the camera’s live preview directly to your application's UI for real-time framing and focusing. The Canon EOS Digital Camera SDK (EDSDK) enables
The EDSDK is not publicly downloadable via standard support pages. You must register as a developer to gain access: Live View : Stream the camera’s live preview