wxWidgets not recognizing ctrl key in key events Topic is solved

[vielmaj]

Hello,

I am using a richtextctrl that is partly read-only. So in my code, I have this

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//key events
void MainDialog::PressKey(wxKeyEvent &event)
{
   if( event.GetKeyCode() == WXK_BACK &&
             GetCaretPosition() <= lastReadyOnlyCursorPosition)
    {
        if( event.ControlDown() )
        {
            cout << "Catch control backspace!" << endl;
        }
    }
    else
    {
        event.Skip();
    }
}

That at a certain position I disable the backspace button. It works unless I type ctrl-backspace. Then it overrides my key event.
I've tried catching it with using event.ControlDown(). That doesn't work. I've even tried event.HasAnyModifiers(), event.RawControlDown() , event.MetaDown() to even notice the control is being down. HasAnyModifiers does notice when I hold down SHIFT and ALT, but not CTRL.

Thanks for any help.

Jason

[doublemax]

When i run the "keyboard" sample that comes with wxWidgets, it shows that the CHAR event for "Ctrl-Backspace" is WXK_DELETE, not WXK_BACK. I don't know if this is a bug or the normal behavior under Windows, but that's probably why your code doesn't work as intended.

[vielmaj]

Thanks for the reply. I did the keyboard test and it just says I am just holding down CTRL and pressing BACK.

I did a web search and found ctrl-backspace is delete previous word. I cannot find the wxID key to disable it.

How would I disable it?

[doublemax]

I did the keyboard test and it just says I am just holding down CTRL and pressing BACK.

Which platform are you using?

Which keyevent are you catching (CHAR, KEY_UP or KEY_DOWN)?

How would I disable it?

First you have to check if the event handler is actually called when pressing. If yes, just check which ID it contains.

[vielmaj]

Thanks for your help. I figured out a solution!

I added the following member function in the header file

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void KeyDown(wxKeyEvent &event);

I added the following to the Event Table

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EVT_KEY_DOWN(MainDialog::KeyDown)

The following member function removes ctrl+backspace and lets all other keydown pass.

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void MainDialog::KeyDown(wxKeyEvent &event)
{
    if( event.GetKeyCode() == WXK_BACK &&
        event.GetModifiers() == wxACCEL_CTRL  )
    {
    }
    else
    {
        event.Skip();
    }
}