Displaying information about a user-pressed key : Key Action « Event « VB.Net

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VB.Net » Event » Key ActionScreenshots 
Displaying information about a user-pressed key
Displaying information about a user-pressed key

Imports System
Imports System.Drawing
Imports System.Windows.Forms

Public Class MainClass

   Shared Sub Main()
        Dim myform As Form = New FrmKeyDemo()
        Application.Run(myform)

   End Sub ' Main

End Class

Public Class FrmKeyDemo
   Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

   Public Sub New()
      MyBase.New()

      'This call is required by the Windows Form Designer.
      InitializeComponent()

      'Add any initialization after the InitializeComponent() call

   End Sub

   'Form overrides dispose to clean up the component list.
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
      If disposing Then
         If Not (components Is NothingThen
            components.Dispose()
         End If
      End If
      MyBase.Dispose(disposing)
   End Sub
   Friend WithEvents lblInformation As System.Windows.Forms.Label
   Friend WithEvents lblCharacter As System.Windows.Forms.Label

   'Required by the Windows Form Designer
   Private components As System.ComponentModel.Container

   'NOTE: The following procedure is required by the Windows Form Designer
   'It can be modified using the Windows Form Designer.  
   'Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()Private Sub InitializeComponent()
      Me.lblInformation = New System.Windows.Forms.Label()
      Me.lblCharacter = New System.Windows.Forms.Label()
      Me.SuspendLayout()
      '
      'lblInformation
      '
      Me.lblInformation.Font = New System.Drawing.Font("Microsoft Sans Serif"12!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.lblInformation.Location = New System.Drawing.Point(856)
      Me.lblInformation.Name = "lblInformation"
      Me.lblInformation.Size = New System.Drawing.Size(176136)
      Me.lblInformation.TabIndex = 1
      '
      'lblCharacter
      '
      Me.lblCharacter.Font = New System.Drawing.Font("Microsoft Sans Serif"12!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.lblCharacter.Location = New System.Drawing.Point(816)
      Me.lblCharacter.Name = "lblCharacter"
      Me.lblCharacter.Size = New System.Drawing.Size(16823)
      Me.lblCharacter.TabIndex = 0
      '
      'FrmKeyDemo
      '
      Me.AutoScaleBaseSize = New System.Drawing.Size(922)
      Me.ClientSize = New System.Drawing.Size(192205)
      Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.lblInformation, Me.lblCharacter})
      Me.Font = New System.Drawing.Font("Microsoft Sans Serif"14.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.Name = "FrmKeyDemo"
      Me.Text = "KeyDemo"
      Me.ResumeLayout(False)

   End Sub

#End Region

   Private Sub FrmKeyDemo_KeyPress(ByVal sender As System.Object, _
      ByVal e As System.Windows.Forms.KeyPressEventArgs_
      Handles MyBase.KeyPress

      lblCharacter.Text = "Key pressed: " & e.KeyChar
   End Sub

   Private Sub FrmKeyDemo_KeyDown(ByVal sender As System.Object, _
      ByVal e As System.Windows.Forms.KeyEventArgs_
      Handles MyBase.KeyDown

      lblInformation.Text = ""

      ' if key is Alt
      If e.Alt Then
         lblInformation.Text &= "Alt: Yes" & vbCrLf
      Else
         lblInformation.Text &= "Alt: No" & vbCrLf
      End If

      ' if key is Shift
      If e.Shift Then
         lblInformation.Text &= "Shift: Yes" & vbCrLf
      Else
         lblInformation.Text &= "Shift: No" & vbCrLf
      End If

      ' if key is Ctrl
      If e.Control Then
         lblInformation.Text &= "Ctrl: Yes" & vbCrLf
      Else
         lblInformation.Text &= "Ctrl: No" & vbCrLf
      End If

      lblInformation.Text &= "KeyCode: " & e.KeyCode.ToString & _
            vbCrLf & "KeyData: " & e.KeyData.ToString & _
            vbCrLf & "KeyValue: " & e.KeyValue
   End Sub ' FrmKeyDemo_KeyDown

End Class
           
       
Related examples in the same category
1.Display key event in Fake KeyboardDisplay key event in Fake Keyboard
2.Key event: KeyChar codeKey event: KeyChar code
3.Key action info: data, code, modifier and valueKey action info: data, code, modifier and value
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