How to show the caps lock is on balloon warning like Windows

[Debasis Bag]

Dear Sir,

I want to show "the caps lock is on balloon" warning message like Windows in login form in passward text box. but I have no idea using window's api function. but i tried using tooltip but it can't work like window. I am working on Visual Studio 2010.

Please give me any idea or sample code.


Thanking You


Debasis Bag

[GremlinSA]

With VS2008, on Win 7 .... If the textbox has been set as a password IE: PasswordChar = "*" then the Balloon tip automatically pops up ...

..

however if you want to test for caps lock ... here's some sample code.. (NO API's ..)

on a Form add a text box (Default Name 'TextBox1') and add this code to the form ...

    Private Sub Text_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Textbox1.KeyDown
        If e.KeyCode = Keys.CapsLock Then
            If My.Computer.Keyboard.CapsLock Then
                MsgBox("CAPS LOCK is on")
            Else
                MsgBox("CAPS LOCK is off")
            End If
        End If
    End Sub

Now start the project and with focus on the text box... press the caps key ... The msgbox will will give you the state of the CapsLock ...

Now .. You could put the Code into the Textbox_GotFocus sub (with out the If e.KeyCode = Keys.CapsLock) and set/display your tooltip, Change a Lable, etc, etc...

[curt_c]

Hi,

you could also use the keyboard object.

Try something like this in a timer.

If My.Computer.Keyboard.CapsLock = True Then
       'display something or show a mesage
End If

Curt

[GremlinSA]

you could also use the keyboard object.

If My.Computer.Keyboard.CapsLock = True Then
       'display something or show a mesage
End If

My example does use the Keyboard object .... Also putting it on a Timer is not advisable, do you want a msgbox every timer tick popping up telling you that Capslock is on...

Best is to use the Keypess/Keydown events...

you can even set the Forms Keypreview to true and have the forms Keydown/press event trigger for every key pressed while the form has focus..