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Juan Manuel Palacios
Asked: 2020-08-03 14:17:26 +0800 CST 2020-08-03 14:17:26 +0800 CST

How can I detect that an application has pressed the ImpPnt key?

  • 772

Good afternoon sirs,

Is there a way to be able to detect when a user has pressed the key ImpPnt?

What I'm wanting to implement is being able to detect when a user has pressed the key ImpPntor PrntScrnfrom any control within any form that is within a module and/or application.

The application where I need to implement this has several projects, some of them are developed entirely in VB and others in C#.

Sincerely, Juan Manuel

c#

2 Answers

  1. Best Answer

    If you can implement the keyup event example:

    C#:

        private void Form1_KeyUp(object sender, KeyEventArgs e)
    {
        if (e.KeyValue == 44) {
            MessageBox.Show("haz presionado la tecla de imprimir");

        }
    }

    VB:

        Private Sub Form1_KeyUp(sender As System.Object, e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyUp

    If e.KeyValue.Equals(44) Then
        MessageBox.Show("haz presionado la tecla de imprimir")
    End If

End Sub

    note this works as long as the form has the focus.

    Cheers...

    • 2

  2. Assuming that main is your main form:

                AddHandler main.KeyDown, Sub(o, e)
                                          If e.KeyCode = Keys.PrintScreen Then
                                            'Aqui tu código
                                          End If
                                      End Sub

    Make sure the KeyPreview property on the form is set to true.

    • 0