OpenEuphoria

Re: inputbox

• Posted by Matthew Lewis <MatthewL at KAPCOUSA.COM> Jul 26, 2000
• 421 views

-----Original Message-----
From: =A9koda

>how do i make inputbox function with Win32Lib?
>object text
>text=3Dinputbox()
>it will return text when user presses ok, or 0 if user presses cancel
button.

There's no real way to do this (yet).  The proper way to do it would be =
to
use a dialog box (CreateDialog, etc--see msgbox.e), which isn't wrapped =
into
win32lib yet.  I came up with a hack a while back, which allows you to =
run
extra event loops within the main loop.  Then you can create a separate
window with your input box.

Include the code below, and use a function to 'wrap' the input box =
function.
The pseudocode for the input box would look something like this:

function inputbox
run event loop
check status (pressed cancel, ok, etc)
return value
end function

-- Begin Code
-- Allows extra event loops to be run!
sequence EventLoopExit  =20
EventLoopExit =3D {}
global procedure EventLoop( integer id, integer style )
-- main routine=20
    atom hWnd
    atom msg
    atom ele
   =20
    -- allocate a message buffer   =20
    msg =3D allocate_struct(SIZEOF_MESSAGE)
   =20
    EventLoopExit &=3D 0
    ele =3D length(EventLoopExit)
    openWindow( id, style )

    -- message loop
    while c_func( xGetMessage, { msg, NULL, 0, 0 } )  and not
        EventLoopExit[ele] do
        c_proc( xTranslateMessage, { msg } )
        c_proc( xDispatchMessage, { msg } )
    end while
   =20
    free(msg)
   =20
    EventLoopExit =3D EventLoopExit[1..ele-1]

end procedure
-- Back to original program
------------------------------------------------------------------

global procedure ExitEventLoop()
   =20
    if length(EventLoopExit) then
        EventLoopExit[length(EventLoopExit)] =3D 1
    end if

end procedure
-- End Code