Process.Close Process.Close Process.Close Process.Close Method

Definizione

Libera tutte le risorse associate a questo componente.Frees all the resources that are associated with this component.

public:
 void Close();
public void Close ();
member this.Close : unit -> unit
Public Sub Close ()

Esempi

Nell'esempio seguente viene avviata un'istanza del blocco note.The following example starts an instance of Notepad. Recupera quindi l'utilizzo della memoria fisica del processo associato a intervalli di 2 secondi per un massimo di 10 secondi.It then retrieves the physical memory usage of the associated process at 2-second intervals for a maximum of 10 seconds. L'esempio rileva se il processo viene chiuso prima di 10 secondi.The example detects whether the process exits before 10 seconds have elapsed. L'esempio chiude il processo se è ancora in esecuzione dopo 10 secondi.The example closes the process if it is still running after 10 seconds.

#using <System.dll>

using namespace System;
using namespace System::Diagnostics;
using namespace System::Threading;
int main()
{
   try
   {
      Process^ myProcess;
      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 : {0}", myProcess->WorkingSet.ToString() );
            
            // Wait 2 seconds.
            Thread::Sleep( 2000 );
         }
         else
         {
            break;
         }

      }
      myProcess->CloseMainWindow();
      
      // Free resources associated with process.
      myProcess->Close();
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "The following exception was raised: " );
      Console::WriteLine( e->Message );
   }

}

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);
            }
        }
    }
}
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 'Main
    End Class 'MyProcessClass
End Namespace 'Process_Sample

Commenti

Il Close metodo fa in modo che il processo di arresto in attesa di uscita se era in attesa, chiude l'handle del processo e Cancella le proprietà specifiche del processo.The Close method causes the process to stop waiting for exit if it was waiting, closes the process handle, and clears process-specific properties. Close non chiudere i lettori di output, input e di errore standard e i writer nel caso in cui viene fatto riferimento esternamente.Close does not close the standard output, input, and error readers and writers in case they are being referenced externally.

Nota

Il metodo Dispose chiama Close.The Dispose method calls Close. Posizionare il Process dell'oggetto un using blocco Elimina le risorse senza la necessità di chiamare Close.Placing the Process object in a using block disposes of resources without the need to call Close.

Sicurezza

LinkDemand
per un'attendibilità totale per il chiamante immediato.for full trust for the immediate caller. Impossibile utilizzare questo membro in codice parzialmente attendibile.This member cannot be used by partially trusted code.

Si applica a