ConsoleSpecialKey Énumération

Définition

Espace de noms:

System

Assembly:

System.Console.dll

Assembly:

mscorlib.dll

Assembly:

netstandard.dll

Spécifie des combinaisons de touches de modification et de console capables d'interrompre le processus en cours.

C#

public enum ConsoleSpecialKey

C#

[System.Serializable]
public enum ConsoleSpecialKey

Héritage

Object

ValueType

Enum

ConsoleSpecialKey

Attributs

SerializableAttribute

Champs

ControlBreak	1	Touche de modification Control plus touche de console ATTN.
ControlC	0	Touche de modification Control plus touche de console C.

Exemples

L’exemple de code suivant affiche la ConsoleSpecialKey valeur qui appelle le gestionnaire d’événements associé.

C#

using System;

class Sample
{
    public static void Main()
    {
        ConsoleKeyInfo cki;

        Console.Clear();

        // Establish an event handler to process key press events.
        Console.CancelKeyPress += new ConsoleCancelEventHandler(myHandler);
        while (true)
        {
            Console.Write("Press any key, or 'X' to quit, or ");
            Console.WriteLine("CTRL+C to interrupt the read operation:");

            // Start a console read operation. Do not display the input.
            cki = Console.ReadKey(true);

            // Announce the name of the key that was pressed .
            Console.WriteLine($"  Key pressed: {cki.Key}\n");

            // Exit if the user pressed the 'X' key.
            if (cki.Key == ConsoleKey.X) break;
        }
    }

    protected static void myHandler(object sender, ConsoleCancelEventArgs args)
    {
        Console.WriteLine("\nThe read operation has been interrupted.");

        Console.WriteLine($"  Key pressed: {args.SpecialKey}");

        Console.WriteLine($"  Cancel property: {args.Cancel}");

        // Set the Cancel property to true to prevent the process from terminating.
        Console.WriteLine("Setting the Cancel property to true...");
        args.Cancel = true;

        // Announce the new value of the Cancel property.
        Console.WriteLine($"  Cancel property: {args.Cancel}");
        Console.WriteLine("The read operation will resume...\n");
    }
}
// The example displays output similar to the following:
//    Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
//      Key pressed: J
//
//    Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
//      Key pressed: Enter
//
//    Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
//
//    The read operation has been interrupted.
//      Key pressed: ControlC
//      Cancel property: False
//    Setting the Cancel property to true...
//      Cancel property: True
//    The read operation will resume...
//
//      Key pressed: Q
//
//    Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
//      Key pressed: X

Remarques

La ConsoleCancelEventArgs.SpecialKey propriété retourne le type d’énumération ConsoleSpecialKey .

Appuyer simultanément sur certaines combinaisons de touches signale au système d’exploitation d’interrompre le processus en cours d’exécution. Les deux combinaisons de touches valides sont ConsoleModifiers.Control plus BREAK (CTRL+BREAK) et ConsoleModifiers.Control plus ConsoleKey.C (Ctrl+C).

S’applique à

Voir aussi

• ConsoleCancelEventArgs