ConsoleKeyInfo 構造体とは何？わかりやすく解説 Weblio辞書

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.NET Framework クラスライブラリリファレンス

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ConsoleKeyInfo 構造体

メモ : この構造体は、.NET Framework version 2.0 で新しく追加されたものです。

コンソールキーが表す文字や、Shift、Alt、Ctrl の各修飾子キーの状態など、押されたコンソールキーを記述します。

名前空間: System
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

<SerializableAttribute> _
Public Structure ConsoleKeyInfo

Visual Basic (使用法)

Dim instance As ConsoleKeyInfo

[SerializableAttribute] 
public struct ConsoleKeyInfo

C++

[SerializableAttribute] 
public value class ConsoleKeyInfo

/** @attribute SerializableAttribute() */ 
public final class ConsoleKeyInfo extends ValueType

JScript

JScript では、構造体を使用できますが、新規に宣言することはできません。

解説

ConsoleKeyInfo 型は、ユーザーが作成することを意図した型ではありません。代わりに、この型は、Console.ReadKey メソッドの呼び出しに対する応答としてユーザーに返されます。

ConsoleKeyInfo オブジェクトは、ConsoleKey 定数と、押されたコンソールキーに対応する Unicode 文字 (存在する場合) を記述します。また、ConsoleKeyInfo オブジェクトは、1 つ以上の Shift、Alt、Ctrl の各修飾子キーがコンソールキーと同時に押されたかどうかを ConsoleModifiers 値のビットごとの組み合わせで記述します。

使用例

読み取り操作で ConsoleKeyInfo オブジェクトを使用するコード例を次に示します。

Visual Basic

' This example demonstrates the Console.ReadKey() method
Imports System
Imports System.Text
Imports Microsoft.VisualBasic

Class Sample
   Public Shared Sub Main()
      Dim cki As ConsoleKeyInfo
      '                   0        1         2         3         4 
        5         6
      '                   123456789012345678901234567890123456879012345678901234567890
      Dim m1 As String =
 "This example discovers the console and modifier keys "
 & _
                         "that you press." & vbCrLf
      Dim m2 As String =
 "Press any combination of CTL, ALT, and SHIFT modifier keys,
 " & _
                         "and a console key." &
 vbCrLf & _
                         "Press the Escape (Esc) key to quit:
 "
      Dim m3 As String =
 "You pressed "
      Dim m4 As String =
 " (character '{0}')."
      Dim sb As New StringBuilder()
      '
      ' The Console.TreatControlCAsInput property prevents this example
 from
      ' ending if you press CTL+C, however all other operating system
 keys and 
      ' shortcuts, such as ALT+TAB or the Windows Logo key, are still
 in effect. 
      '
      Console.TreatControlCAsInput = True
      Console.WriteLine(m1)
      Do
         Console.WriteLine(m2)
         sb.Length = 0
         cki = Console.ReadKey(True)
         sb.Append(m3)
         If cki.Modifiers <> 0 Then
            If(cki.Modifiers And ConsoleModifiers.Alt)
 <> 0 Then
               sb.Append("ALT+")
            End If
            If(cki.Modifiers And ConsoleModifiers.Shift)
 <> 0 Then
               sb.Append("SHIFT+")
            End If
            If(cki.Modifiers And ConsoleModifiers.Control)
 <> 0 Then
               sb.Append("CTL+")
            End If
         End If
         sb.Append(cki.Key.ToString())
         sb.AppendFormat(m4, cki.KeyChar)
         sb.AppendLine().AppendLine()
         Console.WriteLine(sb.ToString())
      Loop While cki.Key <> ConsoleKey.Escape
   End Sub 'Main ' Note: This
 example requires the Escape (Esc) key.
End Class 'Sample
'
'This example produces results similar to following text:
'
'This example discovers the console and modifier keys that you press.
'
'Press any combination of CTL, ALT, and SHIFT modifier keys, and a console
 key.
'Press the Escape (Esc) key to quit:
'You pressed A (character 'a').
'
'
'Press any combination of CTL, ALT, and SHIFT modifier keys, and a console
 key.
'Press the Escape (Esc) key to quit:
'You pressed SHIFT+A (character 'A').
'
'
'Press any combination of CTL, ALT, and SHIFT modifier keys, and a console
 key.
'Press the Escape (Esc) key to quit:
'You pressed ALT+SHIFT+CTL+A (character ' ').
'
'
'Press any combination of CTL, ALT, and SHIFT modifier keys, and a console
 key.
'Press the Escape (Esc) key to quit:
'You pressed Escape (character '?').
'

// This example demonstrates the Console.ReadKey() method
using System;
using System.Text;

class Sample 
{
    public static void Main()
 
    {
    ConsoleKeyInfo cki;
//               0        1         2         3         4         5
         6
//               123456789012345678901234567890123456879012345678901234567890
    String m1 = "This example discovers the console and modifier keys "
 +
                "that you press.\n";
    String m2 = "Press any combination of CTL, ALT, and SHIFT modifier keys,
 " +
                "and a console key.\nPress the Escape (Esc) key to quit: ";
    String m3 = "You pressed ";
    String m4 = " (character '{0}').";
    StringBuilder sb = new StringBuilder();   
//
// The Console.TreatControlCAsInput property prevents this example from
// ending if you press CTL+C, however all other operating system keys
 and 
// shortcuts, such as ALT+TAB or the Windows Logo key, are still in
 effect. 
//
    Console.TreatControlCAsInput = true;
    Console.WriteLine(m1);
    do 
    {
        Console.WriteLine(m2);
        sb.Length = 0;
        cki = Console.ReadKey(true);
        sb.Append(m3);
        if (cki.Modifiers != 0)
            {
            if ((cki.Modifiers & ConsoleModifiers.Alt) !=
 0)
                sb.Append("ALT+");
            if ((cki.Modifiers & ConsoleModifiers.Shift) !=
 0)
                sb.Append("SHIFT+");
            if ((cki.Modifiers & ConsoleModifiers.Control)
 != 0)
                sb.Append("CTL+");
            }
        sb.Append(cki.Key.ToString());
        sb.AppendFormat(m4, cki.KeyChar);
        sb.AppendLine().AppendLine();
        Console.WriteLine(sb.ToString());
    } while (cki.Key != ConsoleKey.Escape);
// Note: This example requires the Escape (Esc) key.
    }
}
/*
This example produces results similar to following text:

This example discovers the console and modifier keys that you press.

Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed A (character 'a').


Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed SHIFT+A (character 'A').


Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed ALT+SHIFT+CTL+A (character ' ').


Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed Escape (character '?').
*/

C++

// This example demonstrates the Console.ReadKey() method
using namespace System;
using namespace System::Text;
int main()
{
   ConsoleKeyInfo cki;
   
   //               0        1         2         3         4         5
         6
   //               123456789012345678901234567890123456879012345678901234567890
   String^ m1 = "This example discovers the console and modifier keys "
   "that you press.\n";
   String^ m2 = "Press any combination of CTL, ALT, and SHIFT modifier keys,
 "
   "and a console key.\nPress the Escape (Esc) key to quit: ";
   String^ m3 = "You pressed ";
   String^ m4 = " (character '{0}').";
   StringBuilder^ sb = gcnew StringBuilder;
   
   //
   // The Console.TreatControlCAsInput property prevents this example
 from
   // ending if you press CTL+C, however all other operating system keys
 and 
   // shortcuts, such as ALT+TAB or the Windows Logo key, are still in
 effect. 
   //
   Console::TreatControlCAsInput = true;
   Console::WriteLine( m1 );
   do
   {
      Console::WriteLine( m2 );
      sb->Length = 0;
      cki = Console::ReadKey( true );
      sb->Append( m3 );
      if ( (int)cki.Modifiers )
      {
         if ( (int)(cki.Modifiers & ConsoleModifiers::Alt)
 )
                  sb->Append( "ALT+" );

         if ( (int)(cki.Modifiers & ConsoleModifiers::Shift)
 )
                  sb->Append( "SHIFT+" );

         if ( (int)(cki.Modifiers & ConsoleModifiers::Control)
 )
                  sb->Append( "CTL+" );
      }

      sb->Append( cki.Key.ToString() );
      sb->AppendFormat( m4, cki.KeyChar );
      sb->AppendLine()->AppendLine();
      Console::WriteLine( sb );
   }
   while ( cki.Key != ConsoleKey::Escape );

   
   // Note: This example requires the Escape (Esc) key.
}

/*
This example produces results similar to following text:

This example discovers the console and modifier keys that you press.

Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed A (character 'a').


Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed SHIFT+A (character 'A').


Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed ALT+SHIFT+CTL+A (character ' ').


Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed Escape (character '?').
*/

// This example demonstrates the Console.ReadKey() method
import System.*;
import System.Text.*;

class Sample
{
    public static void main(String[]
 args)
    {
        ConsoleKeyInfo cki;
        //        0        1         2         3         4         5
         6
        //        123456789012345678901234567890123456879012345678901234567890
        String m1 = "This example discovers the console and modifier keys "
            + "that you press.\n";
        String m2 = "Press any combination of CTL, ALT, and SHIFT modifier keys,
 "
            + "and a console key.\nPress the Escape (Esc) key to quit: ";
        String m3 = "You pressed ";
        String m4 = " (character '{0}').";
        StringBuilder sb = new StringBuilder();
        //
        // The Console.TreatControlCAsInput property prevents this example
 from
        // ending if you press CTL+C, however all other operating system keys
 and 
        // shortcuts, such as ALT+TAB or the Windows Logo key, are still
 in
        // effect.
        //
        Console.set_TreatControlCAsInput(true);
        Console.WriteLine(m1);
        do {
            Console.WriteLine(m2);
            sb.set_Length(0);
            cki = Console.ReadKey(true);
            sb.Append(m3);
            if (!(cki.get_Modifiers().Equals((Int32)0))) {
                if (!((cki.get_Modifiers() & ConsoleModifiers.Alt).ToString().
                    Equals(Convert.ToString(0)))) {
                    sb.Append("ALT+");
                }
                if (!((cki.get_Modifiers() & ConsoleModifiers.Shift).ToString().
                    Equals(Convert.ToString(0)))) {
                    sb.Append("SHIFT+");
                }
                if (!((cki.get_Modifiers() & ConsoleModifiers.Control).ToString().
                    Equals(Convert.ToString(0)))) {
                    sb.Append("CTL+");
                }
            }
            sb.Append(cki.get_Key().ToString());
            sb.AppendFormat(m4, (System.Char)cki.get_KeyChar());
            sb.AppendLine().AppendLine();
            Console.WriteLine(sb.ToString());
        } while (!(cki.get_Key().Equals(ConsoleKey.Escape)));
        // Note: This example requires the Escape (Esc) key.
    } //main
} //Sample
/*
This example produces results similar to following text:

This example discovers the console and modifier keys that you press.

Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed A (character 'a').


Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed SHIFT+A (character 'A').


Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed ALT+SHIFT+CTL+A (character ' ').


Press any combination of CTL, ALT, and SHIFT modifier keys, and a console key.
Press the Escape (Esc) key to quit:
You pressed Escape (character '?').
*/

スレッドセーフ

この型の public static (Visual Basic では Shared) メンバはすべて、スレッドセーフです。インスタンスメンバの場合は、スレッドセーフであるとは限りません。

プラットフォーム

バージョン情報

.NET Framework
サポート対象 : 2.0

参照

関連項目
ConsoleKeyInfo メンバ
System 名前空間
ConsoleModifiers
ConsoleKey 列挙体

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