Console.TreatControlCAsInput Propriedade

Referência

Definição

Namespace:: System

Assembly:: System.Console.dll

Assembly:: netstandard.dll

Assembly:: mscorlib.dll

Importante

Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.

Obtém ou define um valor que indica se a combinação da tecla modificadora Control e da chave do console C (Ctrl + C) é tratada como uma entrada comum ou como uma interrupção tratada pelo sistema operacional.

public:
 static property bool TreatControlCAsInput { bool get(); void set(bool value); };

[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]
public static bool TreatControlCAsInput { get; set; }

[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]
[System.Runtime.Versioning.UnsupportedOSPlatform("android")]
[System.Runtime.Versioning.UnsupportedOSPlatform("ios")]
[System.Runtime.Versioning.UnsupportedOSPlatform("tvos")]
public static bool TreatControlCAsInput { get; set; }

public static bool TreatControlCAsInput { get; set; }

[<System.Runtime.Versioning.UnsupportedOSPlatform("browser")>]
member this.TreatControlCAsInput : bool with get, set

[<System.Runtime.Versioning.UnsupportedOSPlatform("browser")>]
[<System.Runtime.Versioning.UnsupportedOSPlatform("android")>]
[<System.Runtime.Versioning.UnsupportedOSPlatform("ios")>]
[<System.Runtime.Versioning.UnsupportedOSPlatform("tvos")>]
member this.TreatControlCAsInput : bool with get, set

member this.TreatControlCAsInput : bool with get, set

Public Shared Property TreatControlCAsInput As Boolean

Valor da propriedade

Boolean

true se Ctrl + C for tratado como uma entrada comum; caso contrário, false.

Atributos: UnsupportedOSPlatformAttribute

Exceções

IOException

Não é possível obter ou definir o modo de entrada do buffer de entrada do console.

Exemplos

O exemplo a seguir demonstra a TreatControlCAsInput propriedade.

using namespace System;

void main()
{
   ConsoleKeyInfo cki;
   // Prevent example from ending if CTL+C is pressed.
   Console::TreatControlCAsInput = true;

   Console::WriteLine("Press any combination of CTL, ALT, and SHIFT, and a console key.");
   Console::WriteLine("Press the Escape (Esc) key to quit: \n");
   do 
   {
      cki = Console::ReadKey();
      Console::Write(" --- You pressed ");
      if((cki.Modifiers & ConsoleModifiers::Alt) != ConsoleModifiers()) Console::Write("ALT+");
      if((cki.Modifiers & ConsoleModifiers::Shift) != ConsoleModifiers()) Console::Write("SHIFT+");
      if((cki.Modifiers & ConsoleModifiers::Control) != ConsoleModifiers()) Console::Write("CTL+");
      Console::WriteLine(cki.Key.ToString());
   } while (cki.Key != ConsoleKey::Escape);
}
// This example displays output similar to the following:
//       Press any combination of CTL, ALT, and SHIFT, and a console key.
//       Press the Escape (Esc) key to quit:
//       
//       a --- You pressed A 
//       k --- You pressed ALT+K 
//       ► --- You pressed CTL+P 
//         --- You pressed RightArrow 
//       R --- You pressed SHIFT+R 
//                --- You pressed CTL+I 
//       j --- You pressed ALT+J 
//       O --- You pressed SHIFT+O 
//       § --- You pressed CTL+U }

using System;

class Example
{
   public static void Main()
   {
      ConsoleKeyInfo cki;
      // Prevent example from ending if CTL+C is pressed.
      Console.TreatControlCAsInput = true;

      Console.WriteLine("Press any combination of CTL, ALT, and SHIFT, and a console key.");
      Console.WriteLine("Press the Escape (Esc) key to quit: \n");
      do
      {
         cki = Console.ReadKey();
         Console.Write(" --- You pressed ");
         if((cki.Modifiers & ConsoleModifiers.Alt) != 0) Console.Write("ALT+");
         if((cki.Modifiers & ConsoleModifiers.Shift) != 0) Console.Write("SHIFT+");
         if((cki.Modifiers & ConsoleModifiers.Control) != 0) Console.Write("CTL+");
         Console.WriteLine(cki.Key.ToString());
       } while (cki.Key != ConsoleKey.Escape);
    }
}
// This example displays output similar to the following:
//       Press any combination of CTL, ALT, and SHIFT, and a console key.
//       Press the Escape (Esc) key to quit:
//
//       a --- You pressed A
//       k --- You pressed ALT+K
//       ► --- You pressed CTL+P
//         --- You pressed RightArrow
//       R --- You pressed SHIFT+R
//                --- You pressed CTL+I
//       j --- You pressed ALT+J
//       O --- You pressed SHIFT+O
//       § --- You pressed CTL+U

open System

// Prevent example from ending if CTL+C is pressed.
Console.TreatControlCAsInput <- true

printfn "Press any combination of CTL, ALT, and SHIFT, and a console key."
printfn "Press the Escape (Esc) key to quit: \n"

let mutable cki = Unchecked.defaultof<ConsoleKeyInfo>

while cki.Key <> ConsoleKey.Escape do
    cki <- Console.ReadKey()
    printf " --- You pressed "
    if int (cki.Modifiers &&& ConsoleModifiers.Alt) <> 0 then printf "ALT+"
    if int (cki.Modifiers &&& ConsoleModifiers.Shift) <> 0 then printf "SHIFT+"
    if int (cki.Modifiers &&& ConsoleModifiers.Control) <> 0 then printf "CTL+"
    printfn $"{cki.Key}"


// This example displays output similar to the following:
//       Press any combination of CTL, ALT, and SHIFT, and a console key.
//       Press the Escape (Esc) key to quit:
//
//       a --- You pressed A
//       k --- You pressed ALT+K
//       ► --- You pressed CTL+P
//         --- You pressed RightArrow
//       R --- You pressed SHIFT+R
//                --- You pressed CTL+I
//       j --- You pressed ALT+J
//       O --- You pressed SHIFT+O
//       § --- You pressed CTL+U

Class Example
   Public Shared Sub Main()
      Dim cki As ConsoleKeyInfo
      ' Prevent example from ending if CTL+C is pressed.
      Console.TreatControlCAsInput = True

      Console.WriteLine("Press any combination of CTL, ALT, and SHIFT, and a console key.")
      Console.WriteLine("Press the Escape (Esc) key to quit: " + vbCrLf)
      Do
         cki = Console.ReadKey()
         Console.Write(" --- You pressed ")
         If (cki.Modifiers And ConsoleModifiers.Alt) <> 0 Then Console.Write("ALT+")
         If (cki.Modifiers And ConsoleModifiers.Shift) <> 0 Then Console.Write("SHIFT+")
         If (cki.Modifiers And ConsoleModifiers.Control) <> 0 Then Console.Write("CTL+")
         Console.WriteLine(cki.Key.ToString)
      Loop While cki.Key <> ConsoleKey.Escape
   End Sub 
End Class 
' This example displays output similar to the following:
'       Press any combination of CTL, ALT, and SHIFT, and a console key.
'       Press the Escape (Esc) key to quit:
'       
'       a --- You pressed A 
'       k --- You pressed ALT+K 
'       ► --- You pressed CTL+P 
'         --- You pressed RightArrow 
'       R --- You pressed SHIFT+R 
'                --- You pressed CTL+I 
'       j --- You pressed ALT+J 
'       O --- You pressed SHIFT+O 
'       § --- You pressed CTL+U

Comentários

Se o valor da TreatControlCAsInput propriedade for false e CTRL + C for pressionado, as teclas pressionadas não serão armazenadas no buffer de entrada e o sistema operacional encerrará o processo em execução no momento. Este é o valor padrão.

Cuidado

Use essa propriedade criteriosamente porque configurá-la para true ter um efeito tão significativo. A maioria dos usuários espera CTRL + C para encerrar um aplicativo de console. Se você desabilitar o efeito de CTRL + C, o usuário deverá se lembrar de usar Ctrl + Break para encerrar o aplicativo, que é uma combinação de teclas menos familiar.

Aplica-se a

Produto	Versões
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8
.NET Standard	1.3, 1.4, 1.6, 2.0, 2.1

Compartilhar via