OnEvent functions design

[Andreik]

How are designed functions like GUICtrlSetOnEvent()? For example I want to create a function to update a control when system time is changed. Well this is quite simple even with AdlibRegister but would be nice to have a function to react just when time has been changed, not keep call a function 10 times/sec to see when the time is changed.

An example using AdlibRegister:

AdlibRegister("OnTimeChange",100)

$hMain = GUICreate("OnTimeChange",200,30)
$hCtrl = GUICtrlCreateLabel("",0,0,200,30,0x01)
GUICtrlSetFont($hCtrl,18,700,1,"Garamond")
GUISetState(@SW_SHOW,$hMain)

Do
     Sleep(10)
Until GUIGetMsg() = -3

Func OnTimeChange()
    Static $Last
    Local $New = @HOUR & ":" & @MIN
    If $New <> $Last Then
        GUICtrlSetData($hCtrl,$New)
        $Last = $New
    EndIf
EndFunc

I appreciate any idea.

[Zedna]

Use GUIRegisterMsg and WM_TIMECHANGE

http://msdn.microsoft.com/en-us/library/windows/desktop/ms725498%28v=vs.85%29.aspx

EDIT: Now I see you probably didn't mean "change of system time", so my answer is not for you.

Edited May 7, 2012 by Zedna