C# 调用AForge类库操作摄像头实现拍照录像功能:
如有雷同,不胜荣幸,若转载,请注明 最近做项目需要操作摄像头,在网上百度了很多资料,很多都是C#调用window API 发送SendMessage,实现操作摄像头,但是C#调用window API的时候因为驱动的问题,总是弹出视频选择对话框,让人很是无语,看到大牛们有的截获到了window消息,然后模拟点击确定按钮,这是在是不敢恭维啊,还有的大牛根据API原型重写了,至于我是一只IT小小鸟了,然后在继续百度,找到了一个AForge强大的C#类库,最后终于搞定了,接下来将我拙劣的代码部分贴出来,以便同行或者需要的朋友学习交流, 首先用到AForge类库下载地址:http://www.aforgenet.com/ 然后引用AForge,AForge.Controls(这个是控件,可以添加到工具箱中),AForge.Imaging,AForge.Video,AForge.Video.DirectShow; 然后直接上代码: [mw_shl_code=csharp,true]private FilterInfoCollection videoDevices;
private VideoCaptureDevice videoSource;
public int selectedDeviceIndex = 0;[/mw_shl_code]
下面是获取设备:
[mw_shl_code=csharp,true]public FilterInfoCollection GetDevices()
{
try
{
//枚举所有视频输入设备
videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
if (videoDevices.Count != 0)
{
LogClass.WriteFile("已找到视频设备.");
return videoDevices;
}
else
return null;
}
catch (Exception ex)
{
LogClass.WriteFile("error:没有找到视频设备!具体原因:" + ex.Message);
return null;
}
}[/mw_shl_code]
选择设备,然后连接摄像头:
[mw_shl_code=csharp,true]/// <summary>
/// 连接视频摄像头
/// </summary>
/// <param name="deviceIndex"></param>
/// <param name="resolutionIndex"></param>
/// <returns></returns>
public VideoCaptureDevice VideoConnect(int deviceIndex = 0, int resolutionIndex = 0)
{
if (videoDevices.Count <= 0)
return null;
selectedDeviceIndex = deviceIndex;
videoSource = new VideoCaptureDevice(videoDevices[deviceIndex].MonikerString);</p><p> return videoSource;
}
//抓图,拍照,单帧
public void GrabBitmap(string path)
{
if (videoSource == null)
return;
g_Path = path;
videoSource.NewFrame += new NewFrameEventHandler(videoSource_NewFrame);
}
void videoSource_NewFrame(object sender, AForge.Video.NewFrameEventArgs eventArgs)
{
Bitmap bmp = (Bitmap)eventArgs.Frame.Clone();
string fullPath = path + "temp\\";
if (!Directory.Exists(fullPath))
Directory.CreateDirectory(fullPath);
string img = fullPath + DateTime.Now.ToString("yyyyMMdd hhmmss") + ".bmp";
bmp.Save(img);
//如果这里不写这个,一会儿会不停的拍照,
videoSource.NewFrame -= new NewFrameEventHandler(videoSource_NewFrame);
}[/mw_shl_code]
|