6 posts in this topic
So the code I use is as follows:
Local $InstancesList = WinList("[REGEXPTITLE:(?i)(.*Paint.*|.*WinAmp.*)]")
And then if this number changes, I do something. But once in a while I SEE a new window paint being opened but nothing happens.
So I added logs and printed the InstancesList and saw it did not pick up the new paint.
Now I also added a WinList with Class to doublecheck, but still now and then it fails. So I was wondering if this is a known problem, and whether there are alternatives of workarounds.
Hi, I use winlist to count the amount of instances of a specific window (in combination with a reg expression). Over multiple runs, it seems that it fails 1 in a hundred times more or less. Any idea how/why? And are there alternatives to use as a backup/check?
I get a database result back as sometimes as single array and sometimes multi array (I understand that is bad practice in general and I am trying to fix that, because there are some errors in my database)
but how can I error handle the best way or determine when something is single or multi array without making my script to break?
I am very poor at @error handling in such cases
for example $ncatid = $array
(because it is the answer i got back from database is multi array, that is because the item is unfortunate stored double which i am trying to fix in proper manner)
I get the error of, Array variable has incorrect number of subscripts or subscript dimension range exceeded
All my tests done on WinXP SP3, AutoItX v184.108.40.206
My AutoItX is not up-to-date, however the changelog does not record any change regarding this problem.
The issue is known :
* each call to o_AutoItX3Obj.WinList can consumme up to 4ko (in my tests),
which are not released even when exiting a sub or setting the o_AutoItX3Obj object to Nothing
-> this is a problem, for example, for ever-runnning scripts that do repetitive call to WinList
* a work-around : enumerate windows instead of using WinList
Option Explicit MAIN() Sub MAIN() Dim s_win_id, arr Dim o_AutoItX3Obj Set o_AutoItX3Obj = CreateObject("AutoItX3.Control") ' s_win_id : the advanced filter parameter that would have been used in the WinList function ' s_win_id : must not contain the INSTANCE parameter (it seems it just would be ignored) ' WinTitleMatchMode : the title match mode that would have been used with the WinList function ' WinSearchChildren : the child windows mode that would have been used with the WinList function ' *** EXAMPLE 1 *** ' s_win_id = "TITLE:a", with WinTitleMatchMode substring (=2), No WinSearchChildren (=0) ' there should be some of theses s_win_id = "TITLE:a" o_AutoItX3Obj.AutoItSetOption "WinTitleMatchMode", 2 o_AutoItX3Obj.AutoItSetOption "WinSearchChildren", 0 ' call the pseudo WinList function (ENUM_WIN) arr = ENUM_WIN(o_AutoItX3Obj, s_win_id) ' look for results SHOW_RESULTS o_AutoItX3Obj, s_win_id, arr ' *** EXAMPLE 2 *** ' s_win_id = "TITLE:a; REGEXPCLASS:a", with WinTitleMatchMode substring (=2), No WinSearchChildren (=0) ' there should be at least the 'Program Manager' [Class:Progman], which is the Windows desktop s_win_id = "TITLE:a; REGEXPCLASS:a" o_AutoItX3Obj.AutoItSetOption "WinTitleMatchMode", 2 o_AutoItX3Obj.AutoItSetOption "WinSearchChildren", 0 ' call the pseudo WinList function (ENUM_WIN) arr = ENUM_WIN(o_AutoItX3Obj, s_win_id) ' look for results SHOW_RESULTS o_AutoItX3Obj, s_win_id, arr End Sub Sub SHOW_RESULTS(ByVal o_AutoItX3Obj, ByVal s_win_id, ByVal arr) Dim s_res, i s_res = "Number of windows matching [" & s_win_id & "] : " & arr(0, 0) & vbCr s_res = s_res & "WinTitleMatchMode : " & o_AutoItX3Obj.AutoItSetOption("WinTitleMatchMode", 0) & ", " s_res = s_res & "WinSearchChildren : " & o_AutoItX3Obj.AutoItSetOption("WinSearchChildren", 0) & vbCr s_res = s_res & "(message boxes can cut long text)" & vbCr & vbCr s_res = s_res & "Num Handle" & vbTab & "Title" & vbCr & vbCr For i = 1 To UBound(arr, 2) s_res = s_res & i & ". " & arr(1, i) & vbTab & "[" & arr(0, i) & "]" & vbCr Next MsgBox s_res, vbInformation, WScript.ScriptName End Sub ' Re-usable code begins here (could be optimized if hundreds of matching windows are expected) ' ENUM_WIN returns an 2-Dim array, same formatting as by WinList function Function ENUM_WIN(ByVal o_AutoItX3Obj, ByVal s_win_id) Dim s_win_handle, s_win_title, arr, i ReDim arr(1, 0) arr(0, 0) = 0 ' will hold the number of found windows, like the WinList function arr(1, 0) = 0 ' will not be used i = 1 ' because Instances are 1-based Do s_win_handle = o_AutoItX3Obj.WinGetHandle("[" & s_win_id & "; INSTANCE:" & i & "]") If s_win_handle = "" Then Exit Do ' enumeration finished s_win_title = o_AutoItX3Obj.WinGetTitle("[HANDLE:" & s_win_handle & "]") ReDim Preserve arr(1, i) arr(0, i) = s_win_title ' title can be an empty string arr(1, i) = s_win_handle ' handle should always be a valid hex string number (32/64 bits ?) i = i + 1 Loop arr(0, 0) = i - 1 ' record the number of found windows ENUM_WIN = arr End Function
* note 1 :
enumerating windows could have timing issues if some windows matching the criteria
are appearing/disappearing while doing the enumeration... (I didn't test that)
* note 2 :
if it impossible to avoid memory leak in COM components returning arrays,
then WinList could return a simple string with titles/handles separated by Chr(0),
(assuming there are no Chr(0) inside window titles ?)
then the user would use the Split function to get an 1-Dim array : [title1, handle1, title2, handle2, title3, handle3] etc...
This string-type return could be an optional parameter given to the WinList function :
arr = o_AutoItX3Obj.Winlist("title" [, "text" [, return type]])
Since Authenticity was awesome enough to post how to get the Alt-Tab-able Windows, I decided to wrap it into a simple UDF that can be used just as WinList. The potential use is great. One person has already used the code to create a replacement Alt-Tab interface.
#include "_WinGetAltTabWinList.au3" #include <Array.au3> Local $aWindows=_WinGetAltTabWinList("","",True) _ArrayDisplay($aWindows)
Fixed extended-style check to skip over certain windows that shouldn't be in the list, cleaned up and shortened code a bit. Download the ZIP at my Site
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