/// <summary>
/// 改变采集分辨率
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// <returns></returns>
private void cmbCapability_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbCapability.SelectedItem != null)
{
if (videoSource != null)
{
VideoCapabilitiesItem item = cmbCapability.SelectedItem as VideoCapabilitiesItem;
videoSource.VideoResolution = item.VideoCapability;
}
}
}
/// <summary>
/// 切换视频设备，初始化支持分辨率的列表
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// <returns></returns>
private void cmbSource_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbSource.SelectedIndex >= 0)
{
videoSource = new VideoCaptureDevice(videoDevices[cmbSource.SelectedIndex].MonikerString);
if (!videoSource.CheckIfCrossbarAvailable())
{
this.button2.Enabled = false;
}
//摄像头的能力
VideoCapabilities[] vc = videoSource.VideoCapabilities;
//通过VideoCapabilities可以得到全部能力，然后进行判断设置分辨率
this.cmbCapability.Items.Clear();
for (int i = 0; i < vc.Length; i++)
{
VideoCapabilitiesItem item = new VideoCapabilitiesItem(vc[i]);
this.cmbCapability.Items.Add(item);
}
this.cmbCapability.SelectedIndex = 0;
}
}