获取给定的运行过程中进程句柄 [英] Get running process given process handle

问题描述

有人可以告诉我，我怎么能在C＃中使用过程类，如果我已经知道了手柄捕捉正在运行的进程？

can someone tell me how i can capture a running process in c# using the process class if i already know the handle?

宁愿没有没有枚举在getrunning两种处理方法。 。PInvoke的是确定的，如果可能的。

Id rather not have not have to enumerate the getrunning processes method either. pInvoke is ok if possible.

推荐答案

在纯C＃，它看起来像你通过他们都有循环：

In plain C#, it looks like you have to loop through them all:

// IntPtr myHandle = ...
Process myProcess = Process.GetProcesses().Single(
    p => p.Id != 0 && p.Handle == myHandle);

上面的例子，如果手柄没有发现故意不。否则，你当然可以使用的SingleOrDefault 。显然，它不喜欢你请求的进程ID 0 ，因此额外条件的句柄。

The above example intentionally fails if the handle isn't found. Otherwise, you could of course use SingleOrDefault. Apparently, it doesn't like you requesting the handle of process ID 0, hence the extra condition.

使用该WINAPI，您可以使用 GetProcessId 。我找不到它pinvoke.net，但这应该做的：

Using the WINAPI, you can use GetProcessId. I couldn't find it on pinvoke.net, but this should do:

[DllImport("kernel32.dll")]
static extern int GetProcessId(IntPtr handle);

（签名使用 DWORD ，但过程ID由 INT ■在.NET基础类库为代表）

(signature uses a DWORD, but process IDs are represented by ints in the .NET BCL)

这似乎有点奇怪，你就会有一手柄，但不是然而一个进程ID。进程处理是通过调用 调用OpenProcess ，这需要一个过程ID。

It seems a bit odd that you'd have a handle, but not a process ID however. Process handles are acquired by calling OpenProcess, which takes a process ID.

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