如何等待第2组成：一个处理和的EventWaitHandle [英] How to wait for the first of the 2: a process and an EventWaitHandle

问题描述

我要上2个不同类型的WaitForMultipleObjects的：

I want to WaitForMultipleObjects on 2 different types:

• 一个的EventWaitHandle


• 一Process.Handle'==>的IntPtr

我不知道如何转换（在适当的方式）process.Handle ，以便有以下代码工作的WaitHandle一：

I don't know how to convert (in the appropriate way) "process.Handle" to a WaitHandle in order to have the following code working:

   var waitHandles = new WaitHandle[2];
   waitHandles[0] = waitHandleExit;
   // Next line is the offending one:
   waitHandles[1] = new SafeWaitHandle(process.Handle, false);
   int waitResult = WaitHandle.WaitAny(waitHandles, timeOut);

即时得到错误：

Im getting the error:

Error   1   Cannot implicitly convert type 'Microsoft.Win32.SafeHandles.SafeWaitHandle' to 'System.Threading.WaitHandle' ...

任何人都知道正确的方式来等待一个过程和的EventWaitHandle？

Anybody know the right way to wait for a process and an EventWaitHandle ?

更新的原因...我的选择答案所有感谢所有的

第一：Jaroen，Slugart和斯利拉姆。所有的答案都非常好。

First of all thanks to all: Jaroen, Slugart and Sriram. All answers were very nice.

• 的原因，我忽略了我的机器上没有工作Jaroen解决方案。我的已退出事件从未发生（或许只有在设置？）。


• Slugart解决方案完美地工作，我尝试它之前，我红了答案。


• 斯利拉姆解决方案完美地工作，我选择了它，因为我没有创建一个虚假的EventWaitHandle，似乎是根据我的视野更干净。

感谢很多！

推荐答案

您可以的子类WaitHandle的代表 Process.Handle ，并使用该实例的WaitHandle 等

You could subclass the WaitHandle which represents Process.Handle and use instance of that WaitHandle to wait.

public class ProcessWaitHandle : WaitHandle
{
    private readonly Process process;
    public ProcessWaitHandle(Process process)
    {
        this.process = process;
        this.SafeWaitHandle = new SafeWaitHandle(process.Handle, false);
    }
}

var waitHandles = new WaitHandle[2]
{
    waitHandleExit,
    new ProcessWaitHandle(process)
};
int waitResult = WaitHandle.WaitAny(waitHandles, timeOut);

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