[Solved] Question: Why $Button is working when Opt() function is used

[KickStarter15]

Hi Experts,

I wold like to ask this question since I don't have any idea as of this moment.

Question: Why "GUICtrlCreateButton()" will not work when Opt("GUIOnEventMode", 1) was set on a code.

I have my sample code from Help file. When you click on Button "$idNotepad" it won't run. But when you remove the Opt("GUIOnEventMode", 1) from your code the script will run after clicking the button.

expandcollapse popup

#include <GUIConstantsEx.au3>
HotKeySet("{ESC}", "Terminate")
Opt("GUIOnEventMode", 1) ; this is my issue when declared, button won't work.

Example()

Func Example()
    ; Create a GUI with various controls.
    Local $hGUI = GUICreate("Example", 300, 200)
    GUISetOnEvent($GUI_EVENT_CLOSE, "_Close")
    ; Create a button control.
    Local $idNotepad = GUICtrlCreateButton("Run Notepad", 120, 170, 85, 25)
    Local $idClose = GUICtrlCreateButton("Close", 210, 170, 85, 25)

    ; Display the GUI.
    GUISetState(@SW_SHOW, $hGUI)

    Local $iPID = 0
   ; Loop until the user exits.
    While 1
        Switch GUIGetMsg()
            Case $GUI_EVENT_CLOSE, $idClose
                ExitLoop
            Case $idNotepad
                ; Run Notepad with the window maximized.
                $iPID = Run("notepad.exe", "", @SW_SHOWMAXIMIZED)
        EndSwitch
    WEnd

   GUIDelete($hGUI)
   If $iPID Then ProcessClose($iPID)
EndFunc   ;==>Example

Func Terminate()
   Exit
EndFunc
Func _Close()
   Exit
EndFunc

 

Any advise from you Experts is very appreciated.

 

Thanks!

KS15

Edited June 16, 2018 by KickStarter15

[AutoBert]

It couldn't work: The GuiOnEventMode ignores GuiGetMsg and needs GUICtrlSetOnEvent. You can read about this:

GUI Reference

• GUI Concepts
• GUI MessageLoop Mode
• GUI OnEvent Mode

it's very important to understand the concepts and the diferences between both.

Edited June 16, 2018 by AutoBert

[KickStarter15]

@AutoBert,

Thanks, well that explained everything. Still need to read those guides further. However, when I don't want to use the Opt() OnEventMode, then clicked the "X" button from the GUI my loop will continue looping and GUI will pop-out many times but when I pressed close button which is "GUICtrlCreateButton()" no looping will happened and will close the GUI.

Maybe I just need to check my codes very well on how to handle this situation. I think I need to use the code without the Opt() event, I'll just find another way around if possible.

[KickStarter15]

Thanks for the guide @AutoBert, found the way to solve my question.