利用directshow修改曝光、增益等参数。

//修改曝光值；

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private void SetExposure(IBaseFilter capFilter, int iExposure)
    {
        IAMCameraControl cameraControl = capFilter as IAMCameraControl;
        DirectShowLib.CameraControlFlags eFlags = CameraControlFlags.Manual;
        cameraControl.Set(CameraControlProperty.Exposure, iExposure, eFlags);
    }

//修改增益值； 内容来自dedecms

private void SetGain(IBaseFilter capFilter, int iGain)
    {
        IAMVideoProcAmp videoProcAmp = capFilter as IAMVideoProcAmp;
        DirectShowLib.VideoProcAmpFlags gFlags = VideoProcAmpFlags.Manual;
        videoProcAmp.Set(VideoProcAmpProperty.Gain, iGain, gFlags);
    }
织梦好，好织梦

3.在Capture的SetupGraph函数中加入下面代码 内容来自dedecms

SetGain(capFilter, iGain);
            SetExposure(capFilter, iExposure);

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这样就可以实现曝光等参数的设置了。

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