GUI Event Handling

[HolmesShelock]

Hi All,

I'm new to AutoIt. I wrote a code snippet as follows

#include <GDIPlus.au3>
#include <GUIConstants.au3>
#include <GUIConstantsEx.au3>
#include <ButtonConstants.au3>
#include <WindowsConstants.au3>



$Main_BackGround = GUICreate("USB AIO", 500, 300, 200, 120)
$Background_Image = GUICtrlCreatePic(@ScriptDir & "\Images\Background.jpg", 0, 0, 500, 300)
GUICtrlSetState(-1, $GUI_DISABLE)
$ADD_SCRIPT_BUTTON = GUICtrlCreateButton("Add Script", 48, 24, 80, 80, $BS_BITMAP)
GUICtrlSetImage($ADD_SCRIPT_BUTTON, @ScriptDir & "\Images\Add.bmp", 0)
GUISetState(@SW_SHOW)

While 1
    $msg = GUIGetMsg()
    Select
        Case $msg = $GUI_EVENT_CLOSE
            ExitLoop
        Case $msg = $ADD_SCRIPT_BUTTON
            Run('Notepad.exe')
    EndSelect
WEnd

What I observed is, if I use

GUISetState(@SW_SHOW)

instead of

GUICtrlSetState(-1, $GUI_DISABLE)

@ line no 11, the "Add Script" button remains clickable NO MORE, i.e, pressing the button triggers no event. Can anybody please explain me the reason?

[Melba23]

HolmesShelock,

If you have overlapping active controls AutoIt will action neither as it cannot decide which you actually wanted to action. By omitting the GUICtrlSetState(-1, $GUI_DISABLE) line, you are leaving the Pic control active and so the button does not work.

As it says in the Help file:

"If a picture is set as a background picture, as the other controls will overlap, it's important to disable the pic control and create it after the others controls"

All clear?

M23

Edit: Welcome to the AutoIt forum, by the way!

Edited April 26, 2011 by Melba23

[HolmesShelock]

Thank you a lot Melba23. You explained it nicely. I got it very clearly.