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Which webcam models are supported by QCameraFocus

  • Hi everyone,

    Currently I'm working on an application, which is using a webcam to capture pictures. I want to set the focus by software, which is supported by Qt using the QCameraFocus object. Unfortunately, the three webcams I have are not supporting the customFocusPoint feature.

    Therefore, I wanted to ask the community, if somebody has experience using QCameraFocus with webcams or is there somekind of a list of all the supported webcam models?

    Thanks in advance

  • Lifetime Qt Champion

    Hi and welcome to devnet,

    It's likely not the webcam the problem but the related QtMultimedia backend that might be lacking the support for that properly.

    What OS are you on ? Which version of Qt are you using ?

  • Hi SGaist

    Thanks for your reply.

    The application is compiled with Qt 5.4 and is running on a Fedora 20 Linux. However, I checked Windows 7 as well.

    On both system, the functions isFocusModeSupported and isFocusPointModeSupported return false.

  • Lifetime Qt Champion

    You should consider updating Qt first, 5.8.0 just got released.

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