//设备状态改变事件响应
public void DevChangeEventHandler(int type, int idx, int dbt)
{
if (1 == type)
{
if (1 == dbt)//设备到达
{
EloamDevice tempDevice = (EloamDevice)global.CreateDevice(1, idx);
deviceList.Add(tempDevice);
selectDevice.Items.Add(tempDevice.GetFriendlyName());
if (-1 == selectDevice.SelectedIndex)
{
selectDevice.SelectedIndex = 0;//改变所选设备
}
}
else if (2 == dbt)//设备丢失
{
EloamDevice tempDevice = deviceList[idx];
if (null != video)
{
EloamDevice tempDevice2 = (EloamDevice)video.GetDevice();
if (tempDevice == tempDevice2)
{
// closeVideo_Click(new object(), new EventArgs());
toolStripButton_stop_Click(new object(), new EventArgs());
}
}
deviceList[idx].Destroy();
deviceList.RemoveAt(idx);
selectDevice.Items.RemoveAt(idx);
if (-1 == selectDevice.SelectedIndex)
{
if (0 != deviceList.Count)
{
selectDevice.SelectedIndex = 0;
}
else
{
selectDevice.Items.Clear();
selectMode.Items.Clear();
selectResolution.Items.Clear();
}
}
}
}
}
private void selectDevice_SelectedIndexChanged(object sender, EventArgs e)
{
int idx = selectDevice.SelectedIndex;//记录当前所选设备
selectMode.Items.Clear();
if (-1 != idx)
{
EloamDevice tempDevice = deviceList[idx];
//加载模式列表
int subtype = tempDevice.GetSubtype();
if (0 != (subtype & 1))
{
selectMode.Items.Add("YUY2");
}
if (0 != (subtype & 2))
{
selectMode.Items.Add("MJPG");
}
if (0 != (subtype & 4))
{
selectMode.Items.Add("UYVY");
}
//若为辅摄像头，优先选择MJPG方式
if (1 != tempDevice.GetEloamType() && 0 != (subtype & 2))
{
selectMode.SelectedIndex = 1;
}
else
{
selectMode.SelectedIndex = 0;
}
this.toolStripButton_preview_start.Enabled = true;
}
else
{
this.toolStripButton_preview_start.Enabled = false;
}
}
private void toolStripButton_preview_start_Click(object sender, EventArgs e)
{
int devIdx = selectDevice.SelectedIndex;
string curModeString = selectMode.SelectedItem.ToString();
int modeIdx = (curModeString == "YUY2" ? 1 :
(curModeString == "MJPG" ? 2 :
(curModeString == "UYVY" ? 4 :
-1)));
int resIdx = selectResolution.SelectedIndex;
if (-1 != devIdx)
{
if (null != video)
{
video.Destroy();
video = null;
}
EloamDevice tempDevice = deviceList[devIdx];
video = (EloamVideo)tempDevice.CreateVideo(resIdx, modeIdx);
if (null != video)
{
eloamView.SelectVideo(video);
eloamView.SetText("打开视频中，请等待...", RGB(255, 255, 255));
selectDevice.Enabled = false;
selectResolution.Enabled = false;
selectMode.Enabled = false;
//openVideo.Enabled = false;
//closeVideo.Enabled = true;
}
}
this.toolStripButton_preview_start.Enabled = false;
this.toolStripButton_preview_stop.Enabled = true;
}
