OpenEuphoria

Re: lost focus

• Posted by Derek Parnell <ddparnell at bigpond.com> Feb 18, 2002
• 512 views

----- Original Message -----
From: <gwalters at sc.rr.com>
To: "EUforum" <EUforum at topica.com>
Subject: lost focus


>
> can someone show me how to tell when an editText field looses focus
whether
> it came about from a tab or mouse click or otherwise? i would like to take
> some action based on what caused the lost focus.
>

Hi George,
here is one way to do it...

 ---
 without warning
 include win32lib.ew
 constant w = createEx(Window,"TEST", 0, 0,  0, 100, 200, 0, 0),
         f1 = createEx(EditText, "one", w, 5,  5, 80,  25, 0, 0),
         f2 = createEx(EditText, "two", w, 5, 45, 80,  25, 0, 0),
         f3 = createEx(EditText, "three", w, 5, 85, 80,  25, 0, 0),
         sb = createEx(StatusBar, "", w, 0, 0, 0, 0, 0, 0)

 atom vEvent vEvent = -1

 procedure eh(integer self, integer event, sequence parms)
    atom Msg
    Msg = parms[1]
    if find(Msg, {WM_KEYDOWN, WM_LBUTTONDOWN, WM_RBUTTONDOWN}) then
        vEvent = Msg
    end if
 end procedure

 procedure lf(integer self, integer event, sequence parms)
    sequence msg

    if vEvent = WM_KEYDOWN then
        msg = "key"
    elsif find(vEvent, {WM_LBUTTONDOWN, WM_RBUTTONDOWN}) then
        msg = "btn"
    elsif vEvent = 0 then
        msg = "other"
    elsif vEvent = -1 then
        msg = "initial"
    else
        msg = sprintf("%d?", vEvent)
    end if

    setText(sb, sprintf("%s %s ", {getText(self), msg}))
    -- Reset so we can trap Alt-TAB etc...
    vEvent = 0

 end procedure

 setHandler({f1,f2,f3}, w32HEvent,     routine_id("eh"))
 setHandler({f1,f2,f3}, w32HLostFocus, routine_id("lf"))

 WinMain(w, Normal)
 ----------
cheers,
Derek