Key press

[Rado]

Hello.

In Event key_press I write
If e.KeyChar = Microsoft.Visua lBasic.Chr(127) Then

Asci 127 is key DELET.

But it doesn't work, when I get other Ascii It's ok.

And When I press CTRL+BACKSPACE with ascii 127 it's ok. CTRL+BACKSPACE = DEL, but with del it doesn't work.

Can anybody write me where is problem?

Thanks.

[Ken Tucker [MVP]]

Re: Key press

Hi,

Private Sub Form1_KeyDown(B yVal sender As Object, ByVal e As System.Windows. Forms.KeyEventA rgs) Handles MyBase.KeyDown
If e.KeyCode = Keys.Delete Then
MessageBox.Show ("Delete pressed")
End If
End Sub

Ken
--------------
"Rado" <r-soft@szm.sk> wrote in message news:uuVLvBIMEH A.1308@TK2MSFTN GP10.phx.gbl...
Hello.

In Event key_press I write
If e.KeyChar = Microsoft.Visua lBasic.Chr(127) Then

Asci 127 is key DELET.

But it doesn't work, when I get other Ascii It's ok.

And When I press CTRL+BACKSPACE with ascii 127 it's ok. CTRL+BACKSPACE = DEL, but with del it doesn't work.

Can anybody write me where is problem?

Thanks.

[Ken Tucker [MVP]]

Re: Key press

Hi,

Private Sub Form1_KeyDown(B yVal sender As Object, ByVal e As System.Windows. Forms.KeyEventA rgs) Handles MyBase.KeyDown
If e.KeyCode = Keys.Delete Then
MessageBox.Show ("Delete pressed")
End If
End Sub

Ken
--------------
"Rado" <r-soft@szm.sk> wrote in message news:uuVLvBIMEH A.1308@TK2MSFTN GP10.phx.gbl...
Hello.

In Event key_press I write
If e.KeyChar = Microsoft.Visua lBasic.Chr(127) Then

Asci 127 is key DELET.

But it doesn't work, when I get other Ascii It's ok.

And When I press CTRL+BACKSPACE with ascii 127 it's ok. CTRL+BACKSPACE = DEL, but with del it doesn't work.

Can anybody write me where is problem?

Thanks.

[Armin Zingler]

Re: Key press

"Rado" <r-soft@szm.sk> schrieb[color=blue]
>
> In Event key_press I write
> If e.KeyChar = Microsoft.Visua lBasic.Chr(127) Then
>
> Asci 127 is key DELET.
>
> But it doesn't work, when I get other Ascii It's ok.
>
> And When I press CTRL+BACKSPACE with ascii 127 it's ok.
> CTRL+BACKSPACE = DEL, but with del it doesn't work.
>
> Can anybody write me where is problem?[/color]

First, your keyboard (and it's driver) produces "virtual keycodes". Whenever
a key is held down or released, the keydown or keyup events are raised. In
the event handlers, e.keycode contains the virtual keycode. (Almost) all
keys create this message and event.

Second, some of the keys or a combination of them are translated to input
chars afterwards. Others don't, like the function keys. If you press delete,
no input char is created. Use the keydown event to handle the Delete key.


--
Armin

How to quote and why:

http://www.plig.net/nnq/nquote.html

http://www.netmeister.org/news/learn2quote.html

[Armin Zingler]

Re: Key press

"Rado" <r-soft@szm.sk> schrieb[color=blue]
>
> In Event key_press I write
> If e.KeyChar = Microsoft.Visua lBasic.Chr(127) Then
>
> Asci 127 is key DELET.
>
> But it doesn't work, when I get other Ascii It's ok.
>
> And When I press CTRL+BACKSPACE with ascii 127 it's ok.
> CTRL+BACKSPACE = DEL, but with del it doesn't work.
>
> Can anybody write me where is problem?[/color]

First, your keyboard (and it's driver) produces "virtual keycodes". Whenever
a key is held down or released, the keydown or keyup events are raised. In
the event handlers, e.keycode contains the virtual keycode. (Almost) all
keys create this message and event.

Second, some of the keys or a combination of them are translated to input
chars afterwards. Others don't, like the function keys. If you press delete,
no input char is created. Use the keydown event to handle the Delete key.


--
Armin

How to quote and why:

http://www.plig.net/nnq/nquote.html

http://www.netmeister.org/news/learn2quote.html

[Herfried K. Wagner [MVP]]

Re: Key press

* "Rado" <r-soft@szm.sk> scripsit:[color=blue]
> In Event key_press I write
>
> If e.KeyChar = Microsoft.Visua lBasic.Chr(127) Then
>
> Asci 127 is  key DELET.
>
> But it doesn't work, when I get other Ascii It's ok.
>
> And When I press CTRL+BACKSPACE with ascii 127 it's ok.  CTRL+BACKSPACE = DEL, but with del it doesn't work.[/color]

Compare 'e.KeyChar' to one of the 'Keys.*' constants.

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

[Herfried K. Wagner [MVP]]

Re: Key press

* "Rado" <r-soft@szm.sk> scripsit:[color=blue]
> In Event key_press I write
>
> If e.KeyChar = Microsoft.Visua lBasic.Chr(127) Then
>
> Asci 127 is  key DELET.
>
> But it doesn't work, when I get other Ascii It's ok.
>
> And When I press CTRL+BACKSPACE with ascii 127 it's ok.  CTRL+BACKSPACE = DEL, but with del it doesn't work.[/color]

Compare 'e.KeyChar' to one of the 'Keys.*' constants.

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>