WinExists hanging for upwards to 15 seconds

[CWeeks]

I am using the WInExists function to determine if a specific window by name exists.  On some machines this is taking nearly 15 seconds to return when the window does not exist.  Any thoughts?

[Jos]

Any script to show having the issue we can have a look at?

[CWeeks]

It is a really simple call that is part of a larger process. Originally I was only using a WinActivate call and not checking for existance which seemed to work everywhere else, but then I added a WinExists call before using a WinActivate.  Both calls could take upwards to 15 seconds when the window does not exist.  Here is a sample.

If WinExists("Error") Then
   MsgBox(1, "Success", "Error found")
EndIf

I ended up capturing the original window handle of the window I looking for which was possible for my process. I then created my own function using WIn APIs to detect it's existance and activate it. That work without the delay.  I didn't have direct access to the workstation with the issue and could only provide different test programs until the issue was solved.

Perhaps there is a delay enumerating through all the windows, but then there is no delay if the window does exist.

Quite puzzling and I'm sorry this isn't more helpful, 

 

[jchd]

If Not WinExists("Window not present") Then MsgBox(1, "", "Window not found")

returns the message box immediately. Note the Not.

[Musashi]

Just in case the suggestion of @jchd does not work : Try this "brute force" approach 

#include <WinAPI.au3>
Global $aList = WinList(), $sSearchTitle, $bTitleFound = False
$sSearchTitle = "xxx" ; <== insert title
For $i = 1 To $aList[0][0]
    If $aList[$i][0] = $sSearchTitle And BitAND(WinGetState($aList[$i][0]), 1) Then $bTitleFound = True
Next

If $bTitleFound Then
    MsgBox(0, "Search Title", $sSearchTitle & " exists" & @CRLF)
Else
    MsgBox(0, "Search Title", $sSearchTitle & " not found" & @CRLF)
EndIf