How can i convert raw files to dng format with dng_sdk

anyone can help me?

This is the Photoshop Forum, I suspect this may be a better fit for the Camera Raw Forum. 

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Hi,

    I'm developing a software which can convert raw files to dng format with dng_sdk not use DNG_Convert,but i can't find interface documents about dng_sdk or tutorials about dng_sdk. 

Has anyone used dng_sdk to convert raw to dng?