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How do I tect a 'Ctrl'-'A' being pressed with a ListView control

Posted on 2008-06-26
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Last Modified: 2008-08-15
As perthe question above (in VB .NET 2005)

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Question by:FINDERSOL
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rachitkohli earned 500 total points
ID: 21877800
On keydown event of ListView write

If (e.KeyCode = Keys.A And e.Modifiers = Keys.Control) Then
  MsgBox "Ctrl + A Pressed..!!"
End If
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LVL 27

Expert Comment

by:planocz
ID: 21878298
If you want to check for any time the Ctrl -A is pressed you can use this in your form.

 Protected Overrides Function ProcessCmdKey(ByRef msg As Message, ByVal keyData As Keys) As Boolean
        Const WM_KEYDOWN As Integer = &H100
        Const WM_SYSKEYDOWN As Integer = &H104
 
        If ((msg.Msg = WM_KEYDOWN) Or (msg.Msg = WM_SYSKEYDOWN)) Then
            Select Case (keyData)
                Case Keys.A To Keys.Z                                '<--- Catch the Keys you want
                    MessageBox.Show("You pressed " & ChrW(keyData))  '<--- Then do something
                Case Keys.Right
                    Me.Text = "Right Arrow Captured"
                Case Keys.Left
                    Me.Text = "Left Arrow Captured"
                Case Keys.Down
                    Me.Text = "Down Arrow Captured"
                Case Keys.Up
                    Me.Text = "Up Arrow Captured"
                Case Keys.Tab
                    Me.Text = "Tab Key Captured"
                Case (Keys.Control Or Keys.A)
                    Me.Text = "<CTRL> + A Captured"
                Case (Keys.Alt Or Keys.Z)
                    Me.Text = "<ALT> + Z Captured"
                Case Keys.NumPad0
                    Me.Text = "Num Pad '0' Captured"
                Case Keys.Delete
                    MessageBox.Show("Delete Captured")
                Case Keys.NumLock
            End Select
        End If
 
        Return MyBase.ProcessCmdKey(msg, keyData)
    End Function

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