Process.Close Metodo

public:
 void Close();

public void Close();

member this.Close : unit -> unit

Public Sub Close ()

Esempio

Nell'esempio seguente viene avviata un'istanza del Blocco note. Recupera quindi l'utilizzo della memoria fisica del processo associato a intervalli di 2 secondi per un massimo di 10 secondi. Nell'esempio viene rilevato se il processo viene chiuso prima che siano trascorsi 10 secondi. L'esempio chiude il processo se è ancora in esecuzione dopo 10 secondi.

using System;
using System.ComponentModel;
using System.Diagnostics;
using System.IO;
using System.Threading;

namespace ProcessSample
{
    class MyProcessClass
    {
        public static void Main()
        {
            try
            {
                using (Process myProcess = Process.Start("Notepad.exe"))
                {
                    // Display physical memory usage 5 times at intervals of 2 seconds.
                    for (int i = 0; i < 5; i++)
                    {
                        if (!myProcess.HasExited)
                        {
                            // Discard cached information about the process.
                            myProcess.Refresh();
                            // Print working set to console.
                            Console.WriteLine($"Physical Memory Usage: {myProcess.WorkingSet}");
                            // Wait 2 seconds.
                            Thread.Sleep(2000);
                        }
                        else
                        {
                            break;
                        }
                    }

                    // Close process by sending a close message to its main window.
                    myProcess.CloseMainWindow();
                    // Free resources associated with process.
                    myProcess.Close();
                }
            }
            catch (Exception e) when (e is Win32Exception || e is FileNotFoundException)
            {
                Console.WriteLine("The following exception was raised: ");
                Console.WriteLine(e.Message);
            }
        }
    }
}

open System.ComponentModel
open System.Diagnostics
open System.IO
open System.Threading


try
    use myProcess = Process.Start "Notepad.exe"
    // Display physical memory usage 5 times at intervals of 2 seconds.
    let mutable i = 0

    while i < 5 && not myProcess.HasExited do
        // Discard cached information about the process.
        myProcess.Refresh()
        // Print working set to console.
        printfn $"Physical Memory Usage: {myProcess.WorkingSet64}"
        // Wait 2 seconds.
        Thread.Sleep 2000
        i <- i + 1
    // Close process by sending a close message to its main window.
    myProcess.CloseMainWindow() |> ignore
    // Free resources associated with process.
    myProcess.Close()
with
| :? Win32Exception
| :? FileNotFoundException as e ->
    printfn "The following exception was raised: "
    printfn $"{e.Message}"

Imports System.ComponentModel
Imports System.Diagnostics
Imports System.IO
Imports System.Threading

Namespace Process_Sample
    Class MyProcessClass

        Public Shared Sub Main()
            Try
                Using myProcess = Process.Start("Notepad.exe")
                    ' Display physical memory usage 5 times at intervals of 2 seconds.
                    Dim i As Integer
                    For i = 0 To 4
                        If Not myProcess.HasExited Then

                            ' Discard cached information about the process.
                            myProcess.Refresh()
                            ' Print working set to console.
                            Console.WriteLine($"Physical Memory Usage: {myProcess.WorkingSet}")
                            ' Wait 2 seconds.
                            Thread.Sleep(2000)
                        Else
                            Exit For
                        End If

                    Next i

                    ' Close process by sending a close message to its main window.
                    myProcess.CloseMainWindow()
                    ' Free resources associated with process.
                    myProcess.Close()
                End Using
            Catch e As Exception When TypeOf e Is Win32Exception Or TypeOf e Is FileNotFoundException
                Console.WriteLine("The following exception was raised: ")
                Console.WriteLine(e.Message)
            End Try
        End Sub
    End Class
End Namespace 'Process_Sample

Commenti

Il Close metodo causa l'arresto del processo in attesa dell'uscita se è in attesa, chiude l'handle del processo e cancella le proprietà specifiche del processo. Close non chiude l'output standard, l'input e i lettori di errori e i writer nel caso in cui vengano a cui viene fatto riferimento esternamente.