Windows Mobile 6.5 Change the camera focus

I have a project to scan some QR-code or bar-code with camera on windows mobile. (phone x01t) Programing in C++ and usi开发者_StackOverflow社区ng DirectShow. Tired to change focus with IAMCameraControl interface, but return the error like "...request is not supported". Are there any way else?

Thanks

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Most (if not all) Windows Mobile phones I've used so far used custom camera drivers, which means OEMs decide which functionalities to implement/support. IAMCameraControl is most likely not one of them.

However, you might want to look for OEM-specific SDKs. For instance, Samsung provides custom APIs enabling to change such parameters as camera focus or ISO. Maybe such APIs exist for your device.