WIA, device command "WIA_CMD_TAKE_PICTURE" and camera control

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Hi all!

WIA provides a way to snap and download a picture easily with
IWiaItem::DeviceCommand(...). However, there doesn't seem to be any way to
control any of the camera settings for taking a picture.

Is anyone aware of any machanisms to control the camera settings? I'm after
controlling zoom; our app should be able to acquire a person image via WIA,
and the zoom setting should be controllable for this.
The ideal situation would be having a permanent zoom setting which the
camera could be controlled to before snapping the picture.

The camera I now have for testing is a Canon PowerShot S2 IS. I know that
the Canon apps for this camera can handle remote shooting better, but for
our application using thise apps would result in a very clumsy solution.

Any pointers on the subject would be much appreciated!

Thanks,

-Pete


.

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