Intresting Bug by Using GUIOnEvent - (Moved)

[NoNameCode]

Hello people

I found an interesting bug here related to GUIOnEvent & whether to hide GUI using GUISetSate or WinSetState.

Compiled the code & run it 2x

first execution: hide the GUI by clicking X (common e.g. for features like minimize to tray)
second execution: a msgbox with the title "Singelton" signals that it was detected that the application is already running. The window with the title "Test" is displayed again.

If one hid here in the function "_GUIOnEvent_GUIClose" the window use WinSetState OnEvent is active, if GUISetState was used OnEvent is inactive.
(Use the Test button to test if onevent is active or inactive)

 

#include <Misc.au3>

AutoItSetOption("GUIOnEventMode", 1)

If Not _Singleton("Test", 1) Then
    WinSetState("Test", "", @SW_SHOW)
    MsgBox(0, "_Singleton", "", 2)
    Exit
EndIf

$hGUI = GUICreate("Test", 100, 100)
GUISetOnEvent(-3, "_GUIOnEvent_GUIClose")

GUICtrlCreateButton("Test Button", 10, 10, 80, 80)
GUICtrlSetOnEvent(-1, "_GUIOnEvent_Button_Test")


GUISetState(@SW_SHOW)




While 1
    Sleep(1000)
WEnd

Func _GUIOnEvent_Button_Test()
    MsgBox(0, "_GUIOnEvent_Button_Test", "")
EndFunc

Func _GUIOnEvent_GUIClose()
;~  WinSetState($hGUI, '', @SW_HIDE)            ;==> OnEvent still aktiv
    GUISetState(@SW_HIDE)                       ;==> OnEvent somehow inakiv
EndFunc

 

regards

 

NoNameCode

 

[Danp2]

You may want to restate the issue because it isn't clear to me after reading your post.

[argumentum]

..that GUISetState(@SW_HIDE)  fails at times where WinSetState($hGUI, '', @SW_HIDE) works fine ( in my interpretation )

[JLogan3o13]

Moved to the appropriate forum.

Moderation Team

[NoNameCode]

Okay so it's hard to understand, let me visual it a bit:

Script Start -> GUI Build -> GUI Show -> Click Button -> CtrlOnEvent for this Button will trigger a MsgBox

Case 1:
Pressing X -> Hiding Windows use GUISetState(@SW_Hide) -> Start a Second Instans of the Script -> Singelton will notice and Return False -> Second Instanz Show the GUI with WinSetState(... @SW_Show) -> Click Button -> No Reaktion
; It seems to be that only GUISetState(@SW_Show) enables the CtrlOnEvent Routine

Case 2:

Pressing X ->  Hiding Windows use WinSetState($hGUI, '', @SW_Hide) -> Start a Second Instans of the Script -> Singelton will notice and Return False -> Second Instanz Show the GUI with WinSetState(... @SW_Show) -> Click Button -> CrlOnEvent for this Button will trigger a MsgBox

 

Is it a bug or a feature?

 

Regards

NoNameCode

[Melba23]

NoNameCode,

I raised the same point some years ago and a then-Dev told me that it was a design decision to block events when using GUISetState and that only that function should be used when dealing with AutoIt-created GUIs. Furthermore, it was suggested then the use of WinSetState on AutoIt GUIs could lead to unwelcome results, although, in the typically laconic style of that then-Dev, no hard facts as to what exactly might occur were forthcoming.

So I would go for "feature".

M23