I have a Form that is performing a wizard-like step system (using
TabControl), and I need a key combination (like ControlKey + A + T) to
be caught and show a secret admin TabPage.

I tried to add an event handler to the form to catch a key that I
press and change a label to the key I press with this code:


Code:
private void AdminKeyboardEvent(object sender, KeyEventArgs e)
{
lblDebug.Text = e.KeyCode.ToString();
}

However I read on some other sites that my TabControl was preventing
my Form from ever getting these key inputs.. so I had to add
"this.KeyPreview = true;" in my Form contructor..

Now my form is properly handeling a single key stroke, but how can I
get it to handel the user press 2 or 3 keys at the same time?

C#.NET 2.0 using VS2005.

On Feb 12, 10:19 am, "Kbalz" <kbalc...@edge-sweets.com> wrote:
> I have a Form that is performing a wizard-like step system (using
> TabControl), and I need a key combination (like ControlKey + A + T) to
> be caught and show a secret admin TabPage.
>
> I tried to add an event handler to the form to catch a key that I
> press and change a label to the key I press with this code:
>
> Code:
> private void AdminKeyboardEvent(object sender, KeyEventArgs e)
> {
> lblDebug.Text = e.KeyCode.ToString();
> }
>
> However I read on some other sites that my TabControl was preventing
> my Form from ever getting these key inputs.. so I had to add
> "this.KeyPreview = true;" in my Form contructor..
>
> Now my form is properly handeling a single key stroke, but how can I
> get it to handel the user press 2 or 3 keys at the same time?
>
> C#.NET 2.0 using VS2005.

This seems to work so far, Control + X

private void AdminKeyboardEvent(object sender, KeyEventArgs
e)
{
lblDebug.Text = e.KeyCode.ToString();
if (ModifierKeys.Equals(Keys.Control) &
e.KeyCode.Equals(Keys.X))
lblDebug.Text = "enter admin window";
}

>> Now my form is properly handeling a single key stroke, but how can I
>> get it to handel the user press 2 or 3 keys at the same time?
>>

Use KeyDown and KeyUp instead of KeyPress, or P/Invoke GetKeyboardState.
You may also want to check that other keys are NOT simultaneously pressed,
to keep someone from getting in by just mashing half the keyboard.

On Feb 12, 6:35 pm, "Ben Voigt" <r...@nospam.nospam> wrote:
> >> Now my form is properly handeling a single key stroke, but how can I
> >> get it to handel the user press 2 or 3 keys at the same time?
>
> Use KeyDown and KeyUp instead of KeyPress, or P/Invoke GetKeyboardState.
> You may also want to check that other keys are NOT simultaneously pressed,
> to keep someone from getting in by just mashing half the keyboard.

Hopefully my software isn't that frustrating that users would do
that!! That is a great suggestion though, thanks!