protected static void StartScreenshot(string[] args)
{
if (args.Length < 1)
{
return;
}
string pipeName = args[0];
using (System.IO.Pipes.NamedPipeServerStream pipeStream = new System.IO.Pipes.NamedPipeServerStream(pipeName))
{
try
{
pipeStream.WaitForConnection();
if (pipeStream.IsConnected)
{
int iWidth = Screen.PrimaryScreen.Bounds.Width;
int iHeight = Screen.PrimaryScreen.Bounds.Height;
Bitmap img = new Bitmap(iWidth, iHeight);
Graphics gc = Graphics.FromImage(img);
gc.CopyFromScreen(new Point(0, 0), new Point(0, 0), new Size(iWidth, iHeight));
img.Save(pipeStream, ImageFormat.Jpeg);
pipeStream.WaitForPipeDrain();
}
}
catch { }
}
}
protected static void StartCamera(string[] args)
{
if (args.Length < 1)
{
return;
}
int timeout = 5000;
string pipeName = args[0];
if (args.Length >= 2)
{
int.TryParse(args[1], out timeout);
}
using (System.IO.Pipes.NamedPipeServerStream pipeStream = new System.IO.Pipes.NamedPipeServerStream(pipeName))
{
try
{
pipeStream.WaitForConnection();
if (pipeStream.IsConnected)
{
Camera camera = new Camera();
Task <Bitmap> task = camera.CaptureImageAsync(timeout); //直接Wait这个task会产生死锁，因此异步开始、在后面循环判断执行结果。
while (task.Status != TaskStatus.RanToCompletion)
{
switch (task.Status)
{
case TaskStatus.Faulted: throw task.Exception;
case TaskStatus.Canceled: throw new TaskCanceledException();
default:
{
Thread.Sleep(1);
Application.DoEvents();
}
break;
}
}
Bitmap img = task.Result;
img.Save(pipeStream, ImageFormat.Jpeg);
pipeStream.WaitForPipeDrain();
}
}
catch { }
}
}
