Process.GetProcessById 方法

参考

定义

命名空间:: System.Diagnostics

程序集:: System.Diagnostics.Process.dll

程序集:: System.dll

程序集:: netstandard.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

创建新的 Process 组件，并将其与您指定的现有进程资源关联。

重载

GetProcessById(Int32)	返回新的 Process 组件(给定本地计算机上某个进程的标识符)。
GetProcessById(Int32, String)	返回新的 Process 组件(给定进程标识符和网络中计算机的名称)。

GetProcessById(Int32)

Source:: Process.cs

Source:: Process.cs

Source:: Process.cs

返回新的 Process 组件(给定本地计算机上某个进程的标识符)。

public:
 static System::Diagnostics::Process ^ GetProcessById(int processId);

public static System.Diagnostics.Process GetProcessById (int processId);

static member GetProcessById : int -> System.Diagnostics.Process

Public Shared Function GetProcessById (processId As Integer) As Process

参数

processId: Int32

进程资源的系统唯一标识符。

Process

与 processId 参数标识的本地进程资源关联的 Process 组件。

例外

ArgumentException

processId 参数指定的进程未运行。此标识符可能已过期。

示例

以下示例检索当前进程、本地计算机上运行的进程、在本地计算机上运行的所有记事本实例以及本地计算机上特定进程的信息。然后，它会检索远程计算机上相同进程的信息。

#using <System.dll>

using namespace System;
using namespace System::Diagnostics;
using namespace System::ComponentModel;
int main()
{   
   // Get the current process.    
   Process^ currentProcess = Process::GetCurrentProcess();

   // Get all processes running on the local computer.
   array<Process^>^localAll = Process::GetProcesses();

   // Get all instances of Notepad running on the local computer.
   // This will return an empty array if notepad isn't running.
   array<Process^>^localByName = Process::GetProcessesByName("notepad");

   // Get a process on the local computer, using the process id.
   // This will throw an exception if there is no such process.
   Process^ localById = Process::GetProcessById(1234);


   // Get processes running on a remote computer. Note that this
   // and all the following calls will timeout and throw an exception
   // if "myComputer" and 169.0.0.0 do not exist on your local network.

   // Get all processes on a remote computer.
   array<Process^>^remoteAll = Process::GetProcesses("myComputer");

   // Get all instances of Notepad running on the specific computer, using machine name.
   array<Process^>^remoteByName = Process::GetProcessesByName( "notepad", "myComputer" );
   
   // Get all instances of Notepad running on the specific computer, using IP address.
   array<Process^>^ipByName = Process::GetProcessesByName( "notepad", "169.0.0.0" );
   
   // Get a process on a remote computer, using the process id and machine name.
   Process^ remoteById = Process::GetProcessById( 2345, "myComputer" );
}

using System;
using System.Diagnostics;
using System.ComponentModel;

namespace MyProcessSample
{
    class MyProcess
    {
        void BindToRunningProcesses()
        {
            // Get the current process.
            Process currentProcess = Process.GetCurrentProcess();

            // Get all processes running on the local computer.
            Process[] localAll = Process.GetProcesses();

            // Get all instances of Notepad running on the local computer.
            // This will return an empty array if notepad isn't running.
            Process[] localByName = Process.GetProcessesByName("notepad");

            // Get a process on the local computer, using the process id.
            // This will throw an exception if there is no such process.
            Process localById = Process.GetProcessById(1234);

            // Get processes running on a remote computer. Note that this
            // and all the following calls will timeout and throw an exception
            // if "myComputer" and 169.0.0.0 do not exist on your local network.

            // Get all processes on a remote computer.
            Process[] remoteAll = Process.GetProcesses("myComputer");

            // Get all instances of Notepad running on the specific computer, using machine name.
            Process[] remoteByName = Process.GetProcessesByName("notepad", "myComputer");

            // Get all instances of Notepad running on the specific computer, using IP address.
            Process[] ipByName = Process.GetProcessesByName("notepad", "169.0.0.0");

            // Get a process on a remote computer, using the process id and machine name.
            Process remoteById = Process.GetProcessById(2345, "myComputer");
        }

        static void Main()
        {
            MyProcess myProcess = new MyProcess();
            myProcess.BindToRunningProcesses();
        }
    }
}

Imports System.Diagnostics
Imports System.ComponentModel

Namespace MyProcessSample
    Class MyProcess
        Sub BindToRunningProcesses()
            ' Get the current process. You can use currentProcess from this point
            ' to access various properties and call methods to control the process.
            Dim currentProcess As Process = Process.GetCurrentProcess()

            ' Get all processes running on the local computer.
            Dim localAll As Process() = Process.GetProcesses()

            ' Get all instances of Notepad running on the local computer.
            ' This will return an empty array if notepad isn't running.
            Dim localByName As Process() = Process.GetProcessesByName("notepad")

            ' Get a process on the local computer, using the process id.
            ' This will throw an exception if there is no such process.
            Dim localById As Process = Process.GetProcessById(1234)


            ' Get processes running on a remote computer. Note that this
            ' and all the following calls will timeout and throw an exception
            ' if "myComputer" and 169.0.0.0 do not exist on your local network.

            ' Get all processes on a remote computer.
            Dim remoteAll As Process() = Process.GetProcesses("myComputer")

            ' Get all instances of Notepad running on the specific computer, using machine name.
            Dim remoteByName As Process() = Process.GetProcessesByName("notepad", "myComputer")

            ' Get all instances of Notepad running on the specific computer, using IP address.
            Dim ipByName As Process() = Process.GetProcessesByName("notepad", "169.0.0.0")

            ' Get a process on a remote computer, using the process id and machine name.
            Dim remoteById As Process = Process.GetProcessById(2345, "myComputer")
        End Sub

        Shared Sub Main()
            Dim myProcess As New MyProcess()
            myProcess.BindToRunningProcesses()
        End Sub

    End Class

End Namespace 'MyProcessSample

注解

使用此方法创建一个新 Process 组件，并将其与本地计算机上的进程资源相关联。进程资源必须已存在于计算机上，因为 GetProcessById(Int32) 不会创建系统资源，而是将资源与应用程序生成的 Process 组件相关联。 Id只能为计算机上当前正在运行的进程检索进程。进程终止后，如果向其传递过期的标识符， GetProcessById(Int32) 则会引发异常。

在任何特定计算机上，进程的标识符都是唯一的。 GetProcessById(Int32) 最多返回一个进程。如果要获取运行特定应用程序的所有进程，请使用 GetProcessesByName(String)。如果运行指定应用程序的计算机上存在多个进程， GetProcessesByName(String) 则返回包含所有关联进程的数组。可以依次查询其中每个进程的标识符。可以在 Windows 任务管理器的面板中查看 Processes 进程标识符。列 PID 显示分配给进程的进程标识符。

参数 processId 是一个 Int32 (32 位带符号整数) ，尽管基础 Windows API 对类似 API 使用 DWORD (无符号 32 位整数) 。这是出于历史原因。

另请参阅

适用于

GetProcessById(Int32, String)

Source:: Process.cs

Source:: Process.cs

Source:: Process.cs

返回新的 Process 组件(给定进程标识符和网络中计算机的名称)。

public:
 static System::Diagnostics::Process ^ GetProcessById(int processId, System::String ^ machineName);

public static System.Diagnostics.Process GetProcessById (int processId, string machineName);

static member GetProcessById : int * string -> System.Diagnostics.Process

Public Shared Function GetProcessById (processId As Integer, machineName As String) As Process

参数

processId: Int32

进程资源的系统唯一标识符。

machineName: String

网络上计算机的名称。

Process

与 processId 参数标识的远程进程资源关联的 Process 组件。

例外

ArgumentException

processId 参数指定的进程未运行。此标识符可能已过期。

或

machineName 参数的语法无效。名称的长度可能为零 (0)。

ArgumentNullException

machineName 参数为 null。

示例

#using <System.dll>

using namespace System;
using namespace System::Diagnostics;
using namespace System::ComponentModel;
int main()
{   
   // Get the current process.    
   Process^ currentProcess = Process::GetCurrentProcess();

   // Get all processes running on the local computer.
   array<Process^>^localAll = Process::GetProcesses();

   // Get all instances of Notepad running on the local computer.
   // This will return an empty array if notepad isn't running.
   array<Process^>^localByName = Process::GetProcessesByName("notepad");

   // Get a process on the local computer, using the process id.
   // This will throw an exception if there is no such process.
   Process^ localById = Process::GetProcessById(1234);


   // Get processes running on a remote computer. Note that this
   // and all the following calls will timeout and throw an exception
   // if "myComputer" and 169.0.0.0 do not exist on your local network.

   // Get all processes on a remote computer.
   array<Process^>^remoteAll = Process::GetProcesses("myComputer");

   // Get all instances of Notepad running on the specific computer, using machine name.
   array<Process^>^remoteByName = Process::GetProcessesByName( "notepad", "myComputer" );
   
   // Get all instances of Notepad running on the specific computer, using IP address.
   array<Process^>^ipByName = Process::GetProcessesByName( "notepad", "169.0.0.0" );
   
   // Get a process on a remote computer, using the process id and machine name.
   Process^ remoteById = Process::GetProcessById( 2345, "myComputer" );
}

using System;
using System.Diagnostics;
using System.ComponentModel;

namespace MyProcessSample
{
    class MyProcess
    {
        void BindToRunningProcesses()
        {
            // Get the current process.
            Process currentProcess = Process.GetCurrentProcess();

            // Get all processes running on the local computer.
            Process[] localAll = Process.GetProcesses();

            // Get all instances of Notepad running on the local computer.
            // This will return an empty array if notepad isn't running.
            Process[] localByName = Process.GetProcessesByName("notepad");

            // Get a process on the local computer, using the process id.
            // This will throw an exception if there is no such process.
            Process localById = Process.GetProcessById(1234);

            // Get processes running on a remote computer. Note that this
            // and all the following calls will timeout and throw an exception
            // if "myComputer" and 169.0.0.0 do not exist on your local network.

            // Get all processes on a remote computer.
            Process[] remoteAll = Process.GetProcesses("myComputer");

            // Get all instances of Notepad running on the specific computer, using machine name.
            Process[] remoteByName = Process.GetProcessesByName("notepad", "myComputer");

            // Get all instances of Notepad running on the specific computer, using IP address.
            Process[] ipByName = Process.GetProcessesByName("notepad", "169.0.0.0");

            // Get a process on a remote computer, using the process id and machine name.
            Process remoteById = Process.GetProcessById(2345, "myComputer");
        }

        static void Main()
        {
            MyProcess myProcess = new MyProcess();
            myProcess.BindToRunningProcesses();
        }
    }
}

Imports System.Diagnostics
Imports System.ComponentModel

Namespace MyProcessSample
    Class MyProcess
        Sub BindToRunningProcesses()
            ' Get the current process. You can use currentProcess from this point
            ' to access various properties and call methods to control the process.
            Dim currentProcess As Process = Process.GetCurrentProcess()

            ' Get all processes running on the local computer.
            Dim localAll As Process() = Process.GetProcesses()

            ' Get all instances of Notepad running on the local computer.
            ' This will return an empty array if notepad isn't running.
            Dim localByName As Process() = Process.GetProcessesByName("notepad")

            ' Get a process on the local computer, using the process id.
            ' This will throw an exception if there is no such process.
            Dim localById As Process = Process.GetProcessById(1234)


            ' Get processes running on a remote computer. Note that this
            ' and all the following calls will timeout and throw an exception
            ' if "myComputer" and 169.0.0.0 do not exist on your local network.

            ' Get all processes on a remote computer.
            Dim remoteAll As Process() = Process.GetProcesses("myComputer")

            ' Get all instances of Notepad running on the specific computer, using machine name.
            Dim remoteByName As Process() = Process.GetProcessesByName("notepad", "myComputer")

            ' Get all instances of Notepad running on the specific computer, using IP address.
            Dim ipByName As Process() = Process.GetProcessesByName("notepad", "169.0.0.0")

            ' Get a process on a remote computer, using the process id and machine name.
            Dim remoteById As Process = Process.GetProcessById(2345, "myComputer")
        End Sub

        Shared Sub Main()
            Dim myProcess As New MyProcess()
            myProcess.BindToRunningProcesses()
        End Sub

    End Class

End Namespace 'MyProcessSample

注解

使用此方法创建一个新 Process 组件，并将其与网络上远程计算机上的进程资源相关联。进程资源必须已存在于指定的计算机上，因为 GetProcessById(Int32, String) 不会创建系统资源，而是将资源与应用程序生成的 Process 组件相关联。 Id只能为计算机上当前正在运行的进程检索进程。进程终止后，如果向其传递过期的标识符， GetProcessById(Int32, String) 则会引发异常。

在任何特定计算机上，进程的标识符都是唯一的。 GetProcessById(Int32, String) 最多返回一个进程。如果要获取运行特定应用程序的所有进程，请使用 GetProcessesByName(String)。如果运行指定应用程序的计算机上存在多个进程， GetProcessesByName(String) 则返回包含所有关联进程的数组。可以依次查询其中每个进程的标识符。可以在 Windows 任务管理器的面板中查看 Processes 进程标识符。列 PID 显示分配给进程的进程标识符。

如果未指定 machineName，则使用本地计算机。或者，可以通过将设置为 machineName 值“.”或空字符串 (“”) 来指定本地计算机。

参数 processId 是一个 Int32 (32 位带符号整数) ，尽管基础 Windows API 对类似 API 使用 DWORD (无符号 32 位整数) 。这是出于历史原因。

另请参阅

适用于

Process.GetProcessById 方法

定义

重载

GetProcessById(Int32)

参数

返回

例外

示例

注解

另请参阅

适用于

GetProcessById(Int32, String)

参数

返回

例外

示例

注解

另请参阅

适用于

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