[This is preliminary documentation and subject to change.]
The IStillImage::UnRegisterLaunchAppliction method removes the application from the Control Center's list of push model-aware applications. Once this function has executed, the application no longer receives device events.
HRESULT UnRegisterLaunchApplication(
PSTI pSti,
LPWSTR pwszAppName
);
If the function succeeds, the return value is S_OK.
If the function fails, the return value is the appropriate COM error.
Still Image Overview, Making An Application Still Image-Aware