Registry.ClassesRoot Bidang

Definisi

Ruang nama:

Microsoft.Win32

Rakitan:

Microsoft.Win32.Registry.dll

Menentukan jenis (atau kelas) dokumen dan properti yang terkait dengan jenis tersebut. Bidang ini membaca HKEY_CLASSES_ROOT kunci dasar registri Windows.

public: static initonly Microsoft::Win32::RegistryKey ^ ClassesRoot;

public static readonly Microsoft.Win32.RegistryKey ClassesRoot;

 staticval mutable ClassesRoot : Microsoft.Win32.RegistryKey

Public Shared ReadOnly ClassesRoot As RegistryKey 

Nilai Bidang

RegistryKey

Contoh

Contoh berikut menunjukkan cara mengambil subkey kunci ini, dan mencetak namanya ke layar. OpenSubKey Gunakan metode untuk membuat instans subkunci tertentu yang diminati. Anda kemudian dapat menggunakan operasi RegistryKey lain untuk memanipulasi kunci tersebut.

using namespace System;
using namespace Microsoft::Win32;
void PrintKeys( RegistryKey ^ rkey )
{
   
   // Retrieve all the subkeys for the specified key.
   array<String^>^names = rkey->GetSubKeyNames();
   int icount = 0;
   Console::WriteLine( "Subkeys of {0}", rkey->Name );
   Console::WriteLine( "-----------------------------------------------" );
   
   // Print the contents of the array to the console.
   System::Collections::IEnumerator^ enum0 = names->GetEnumerator();
   while ( enum0->MoveNext() )
   {
      String^ s = safe_cast<String^>(enum0->Current);
      Console::WriteLine( s );
      
      // The following code puts a limit on the number
      // of keys displayed.  Comment it out to print the
      // complete list.
      icount++;
      if ( icount >= 10 )
            break;
   }
}

int main()
{
   
   // Create a RegistryKey, which will access the HKEY_CLASSES_ROOT
   // key in the registry of this machine.
   RegistryKey ^ rk = Registry::ClassesRoot;
   
   // Print out the keys.
   PrintKeys( rk );
}

using System;
using Microsoft.Win32;

class Reg {
    public static void Main() {

        // Create a RegistryKey, which will access the HKEY_CLASSES_ROOT
        // key in the registry of this machine.
        RegistryKey rk = Registry.ClassesRoot;

        // Print out the keys.
        PrintKeys(rk);
    }

    static void PrintKeys(RegistryKey rkey) {

        // Retrieve all the subkeys for the specified key.
        string [] names = rkey.GetSubKeyNames();

        int icount = 0;

        Console.WriteLine("Subkeys of " + rkey.Name);
        Console.WriteLine("-----------------------------------------------");

        // Print the contents of the array to the console.
        foreach (string s in names) {
            Console.WriteLine(s);

            // The following code puts a limit on the number
            // of keys displayed.  Comment it out to print the
            // complete list.
            icount++;
            if (icount >= 10)
                break;
        }
    }
}

Imports Microsoft.Win32

Class Reg
    
    Public Shared Sub Main()
        
        ' Create a RegistryKey, which will access the HKEY_CLASSES_ROOT
        ' key in the registry of this machine.
        Dim rk As RegistryKey = Registry.ClassesRoot
        
        ' Print out the keys.
        PrintKeys(rk)
    End Sub    
    
    Shared Sub PrintKeys(rkey As RegistryKey)
        
        ' Retrieve all the subkeys for the specified key.
        Dim names As String() = rkey.GetSubKeyNames()
        
        Dim icount As Integer = 0
        
        Console.WriteLine("Subkeys of " & rkey.Name)
        Console.WriteLine("-----------------------------------------------")
        
        ' Print the contents of the array to the console.
        Dim s As String
        For Each s In  names
            Console.WriteLine(s)
            
            ' The following code puts a limit on the number
            ' of keys displayed.  Comment it out to print the
            ' complete list.
            icount += 1            
            If icount >= 10 Then
                Exit For
            End If
        Next s
    End Sub
End Class

Keterangan

Aplikasi konvensional dan aplikasi OLE menggunakan data yang disimpan di bawah kunci ini. Kunci ini juga memberikan kompatibilitas mundur dengan database pendaftaran Windows 3.1 dengan menyimpan informasi untuk dukungan DDE dan OLE. Penampil file dan ekstensi antarmuka pengguna menyimpan pengidentifikasi kelas OLE mereka di kunci ini, dan server pemrosesan terdaftar dalam kunci ini.