From: Alan Chen <alan@...>
Date: 2002-11-14T08:41:36+09:00
Subject: Re: VRuby question: detecting tab or return in VREdit

On Thu, Nov 14, 2002 at 08:00:25AM +0900, Armin Roehrl wrote:
> Hi,
> 
> I have a VREdit input field.
> I enter text and then press tab or return
> and I only get a beep and the _changed method
> does not get called. How can I detect tab or return
> keyboard input?
> 
> There must be a tiny little detail I do not
> know about how to change the properties of
> that VREdit input field, no?
> 
> My feeling is that I can add it the "style", but WS_TABSTOP
> does not do the trick.  Who knows the "magic" entry I need?
> Probably dead-standard for anybody who knows the Windows
> GUI API.
> 
> addControl(VREdit,   "name","",1.5,0.5,3,0.65, WStyle::WS_TABSTOP)
> 
> Why I want that?
> To enable the input focus jump by pressing
> Tab from one VREdit field to the next.

This is an ugly hack, but I just trapped WM_KEYUP events like so...

class MyVREdit < VREdit
  def vrinit
    super()
    addHandler WMsg::WM_KEYUP, 'keyup', MSGTYPE::ARGINTINT,nil
    acceptEvents [WMsg::WM_KEYUP]
  end

  def self_keyup(keyc, keyd)
    # look for TAB or enter keycodes
    # used a callback to initiate next_field logic
  end
end


-- 
Alan Chen
Digikata LLC
http://digikata.com