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Im wondering if it is possible to 'empty' the variable value to save memory, for example i often use variable as a onetime use thing and would prefer to 'forget' it after is is used

Maybe it is just as easy as to setting $vVar = Null, but i wanted to make sure that this is the case :)

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It is.

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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If you declare local variables inside a function and you return from the function then these local variables are destroyed and released.


SciTE4AutoIt =   AutoIt =   AutoItX64 = 0   OS = Win7Pro SP1   OSArch = X64   Language = 0407/german
H:\...\AutoIt3\SciTE     H:\...\AutoIt3      H:\...\AutoIt3\Include     (H:\ = Network Drive)

   88x31.png  Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind.

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    • By Chimp
      After watching this movie (https://www.youtube.com/watch?v=cPiDHXtM0VA) I wanted to try the test to see how much i could compete with that chimpanzee so i created this script.
      well, actually passing that test is a lot harder than it sounds. With the difficulty set to seven numbers and a display time of one second, I can only remember 2 or 3 numbers ... (what a disappointment)
      I can only do better if I reduce the slider to 5 numbers and increase the storage time to 2 seconds (the easyest level), a very poor performance. That chimpanzee is great.
      The script offers you a sequence of 10 random quizzes. At the end it gives you the percentage of your "level". The chimpanzee resolves on average 8 out of 10 (80%), so you can compare your performance to that of the chimpanzee.
      How to play:
      Run the script. At the beginning there are 2 sliders at the bottom of the screen where you can set the difficulty level by varying the memorization time and the amount of numbers to memorize as you like. After setting the difficulty, click the circle on the bottom left to get started. after the first move the sliders are no longer displayed until the next game, (the game lasts 10 attempts, there is a progress bar at the bottom of the screen to see where you are) between one test and the other of the ten, click on the circle to move on to the next test have fun.
      (here a related interesting video: https://www.youtube.com/watch?v=ktkjUjcZid0 )
      #include <GUIConstants.au3> #include <MsgBoxConstants.au3> #include <Array.au3> #include <WinAPIMisc.au3> ; HotKeySet("{ESC}", "_EndOfGame") Global $iNumbersToGuess = 7, $iExpositionTime = 1000, $iMatches = 10, $iMatchesWon Global $aNumbers[10] = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] Global $aButtons[10], $aControls[5] Global $iWinWidth = @DesktopWidth / 2, $iWinHeight = @DesktopHeight / 2, $iButtonXSide = Int($iWinWidth / UBound($aNumbers)), $iButtonYSide = Int($iWinHeight / UBound($aNumbers)), $sWinTitle = "Beat the Chimp" Global $aX[Int($iWinWidth / $iButtonXSide)], $aY[Int($iWinHeight / $iButtonYSide)], $iNdx = 0, $aPoints[3], $score, $GUIGetMsg, $iDockHeight = 50, $iProgrssHeight = 5 For $i = 0 To (Int($iWinWidth / $iButtonXSide) - 1) * $iButtonXSide Step $iButtonXSide $aX[$iNdx] = $i $iNdx += 1 Next $iNdx = 0 For $i = 0 To (Int($iWinHeight / $iButtonYSide) - 1) * $iButtonYSide Step $iButtonYSide $aY[$iNdx] = $i $iNdx += 1 Next Global Const $iDockLeftBorder = 200, $iForeColor = 0xFFFFFF, $iBackColor = 0x000000 Global $hGUI = GUICreate($sWinTitle, $iWinWidth, $iWinHeight + $iDockHeight + $iProgrssHeight, @DesktopWidth / 4, @DesktopHeight / 5) GUISetBkColor($iBackColor, $hGUI) ; the circle to continue playing $aControls[0] = GUICtrlCreateLabel(ChrW(0x25EF), 0, $iWinHeight + 1, 100, $iDockHeight, 0x01) ; GUICtrlSetTip(-1, "Click the circle," & @CRLF & "then click the squares" & @CRLF & "in numeric order.") GUICtrlSetFont(-1, 24, 900) GUICtrlSetColor(-1, $iForeColor) GUICtrlSetBkColor(-1, $iBackColor) ; slider for the amount of numbers to guess $aControls[2] = GUICtrlCreateSlider($iDockLeftBorder, $iWinHeight, $iWinWidth - $iDockLeftBorder, Int($iDockHeight / 2)) GUICtrlSetLimit(-1, 10, 5) ; 5 steps 5 (easy) to 10 (hard) GUICtrlSetData(-1, $iNumbersToGuess) ; label for the amount of quizzes $aControls[1] = GUICtrlCreateLabel("Numbers : " & GUICtrlRead($aControls[2]), 100, $iWinHeight + 1, 100) GUICtrlSetColor(-1, $iForeColor) ; slider for the exposition time $aControls[4] = GUICtrlCreateSlider($iDockLeftBorder, $iWinHeight + (Int($iDockHeight / 2)), $iWinWidth - $iDockLeftBorder, $iDockHeight / 2) GUICtrlSetLimit(-1, 8, 1) ; 8 steps (0f 250ms each) GUICtrlSetData(-1, $iExpositionTime / 250) ; label for the exposition time $aControls[3] = GUICtrlCreateLabel("ms to show : " & GUICtrlRead($aControls[4]) * 250, 100, $iWinHeight + 1 + (Int($iDockHeight / 2)), 100) GUICtrlSetColor(-1, $iForeColor) ; progress bar of the match Global $idProgressbar = GUICtrlCreateProgress(0, $iWinHeight + $iDockHeight, $iWinWidth, $iProgrssHeight) ; Create buttons For $i = 0 To 9 $aButtons[$i] = GUICtrlCreateLabel($i + 1, $iWinWidth + 5, $iWinHeight + $iDockHeight + $iProgrssHeight + 5, $iButtonXSide, $iButtonYSide, 0x01) GUICtrlSetFont($aButtons[$i], 24) GUICtrlSetColor($aButtons[$i], $iForeColor) GUICtrlSetBkColor($aButtons[$i], $iBackColor) Next GUISetState(@SW_SHOW) ; --- Main loop --- Do ; New game $iMatchesWon = 0 GUICtrlSetData($idProgressbar, 0) For $iRound = 1 To $iMatches ; the game lasts $iMatches rounds $iNdx = 0 ; reset pointer (index to the next correct answer) _HideControls(__get_IDs_by_indexes($aButtons, $aNumbers)) ; remove the numbers from the screen ; show the dock and wait (only in the first round are also shown the sliders) _ShowControls($iRound = 1 ? $aControls : $aControls[0]) ; display the dock's control(s) While 1 Switch GUIGetMsg() Case $aControls[0] ; The circle (play a new quiz) ExitLoop Case $aControls[2] ; slider to choose how many numbers to guess $iNumbersToGuess = GUICtrlRead($aControls[2]) GUICtrlSetData($aControls[1], "Numbers : " & $iNumbersToGuess) Case $aControls[4] ; slider to choose how long (milliseconds) to show the numbers $iExpositionTime = GUICtrlRead($aControls[4]) * 250 ; 8 steps of 250 milliseconds each GUICtrlSetData($aControls[3], "ms to show : " & $iExpositionTime) Case $GUI_EVENT_CLOSE _EndOfGame() EndSwitch WEnd _HideControls($aControls) ; hide the dock Sleep(750) ; wait a bit $aQuiz = _GenerateQuiz($iNumbersToGuess) ; generate random elements to guess _SpreadControls(__get_IDs_by_indexes($aButtons, $aQuiz)) ; scatter the numbers on the GUI _ShowControls(__get_IDs_by_indexes($aButtons, $aQuiz)) ; display the numbers Sleep($iExpositionTime) ; leave numbers visible for a short time _MaskControls(__get_IDs_by_indexes($aButtons, $aQuiz)) ; mask the numbers GUICtrlSetData($idProgressbar, Round($iRound / $iMatches * 100)) ; _ShowControls(__get_IDs_by_indexes($aButtons, $aQuiz)) ; <------------- keep numbers visible FOR DEBUG PURPOSE ONLY! While 1 ; wait for a move $GUIGetMsg = GUIGetMsg() If $GUIGetMsg = $GUI_EVENT_CLOSE Then _EndOfGame() ; scan all quiz buttons to check if one was pressed For $i = 0 To UBound($aQuiz) - 1 ; $aButtons) - 1 If $GUIGetMsg = $aButtons[$aQuiz[$i] - 1] Then If $i = $iNdx Then ; -------------------------- ; actions for a right move ; -------------------------- ; hide the guessed number _HideControls($aButtons[$aQuiz[$i] - 1]) ; --------------------------------- ; check if this round is complete ; --------------------------------- If $iNdx = (UBound($aQuiz) - 1) Then _WinAPI_PlaySound("SystemExclamation", Null, BitOR($SND_ALIAS, $SND_ASYNC)) $iMatchesWon += 1 ExitLoop 2 EndIf ; play a short ok sound ; _WinAPI_PlaySound("FaxBeep", Null, BitOR($SND_ALIAS, $SND_ASYNC)) ; "SystemAsterisk" $iNdx += 1 ; set index to next correct answer Else ; -------------------------- ; actions for a wrong move ; -------------------------- ; show all the right sequence _ShowControls(__get_IDs_by_indexes($aButtons, $aQuiz)) _WinAPI_PlaySound("DeviceFail", Null, BitOR($SND_ALIAS, $SND_ASYNC)) ; give a little time to the user to control it Sleep(1500) ; go to next step ExitLoop 2 EndIf EndIf Next WEnd ; loop till end of match $score = Round($iMatchesWon / $iMatches * 100, 2) ; percentage Select Case $score < 80 $sResult = "The chimp beat you!" Case $score > 80 $sResult = "You beat the chimp!" Case $score = 80 $sResult = "You tied the chimp." EndSelect Next ; next round ; game over? Until MsgBox($MB_YESNO + $MB_ICONINFORMATION + $MB_TASKMODAL + $MB_SETFOREGROUND, _ "Game over", _ "You got " & $score & "% correct." & @CRLF & _ "Ayumu averages 80% correct." & @CRLF & $sResult & @CRLF & @CRLF & _ "do you want to try again?") <> 6 Func _SpreadControls($aTemp) ; place the required numbers scattered on the GUI SRandom(@YEAR + @MON + @MDAY + @HOUR + @MIN + @SEC) _ArrayShuffle($aX) _ArrayShuffle($aY) ; first, place all buttons out of GUI For $i = 0 To UBound($aButtons) - 1 GUICtrlSetPos($aButtons[$i], $iWinWidth + 5, $iWinHeight + $iDockHeight + $iProgrssHeight + 5) GUICtrlSetState($aButtons[$i], $GUI_DISABLE) Next ; Then place only the numbers of this quiz in visible area For $i = 0 To UBound($aTemp) - 1 GUICtrlSetPos($aTemp[$i], $aX[$i], $aY[$i]) GUICtrlSetState($aTemp[$i], $GUI_ENABLE) Next EndFunc ;==>_SpreadControls Func _GenerateQuiz($iNumElements) ; generate an array of required random numbers SRandom(@YEAR + @MON + @MDAY + @HOUR + @MIN + @SEC) Local $aTemp[$iNumElements] _ArrayShuffle($aNumbers) For $i = 0 To $iNumElements - 1 $aTemp[$i] = $aNumbers[$i] Next _ArraySort($aTemp) Return $aTemp EndFunc ;==>_GenerateQuiz Func _ShowControls($aTemp) ; render controls visible (and enabled) $aTemp = _EnforceArray($aTemp) For $i = 0 To UBound($aTemp) - 1 GUICtrlSetState($aTemp[$i], $GUI_SHOW) GUICtrlSetColor($aTemp[$i], $iForeColor) GUICtrlSetBkColor($aTemp[$i], $iBackColor) Next EndFunc ;==>_ShowControls Func _MaskControls($aTemp) ; mask the controls $aTemp = _EnforceArray($aTemp) For $i = 0 To UBound($aTemp) - 1 GUICtrlSetColor($aTemp[$i], $iForeColor) GUICtrlSetBkColor($aTemp[$i], $iForeColor) Next EndFunc ;==>_MaskControls Func _HideControls($aTemp) ; hide the controls (implies disable) $aTemp = _EnforceArray($aTemp) For $i = 0 To UBound($aTemp) - 1 GUICtrlSetState($aTemp[$i], $GUI_HIDE) ; $GUI_DISABLE) ; GUICtrlSetColor($aButtons[$aTemp[$i] - 1], $iBackColor) ; GUICtrlSetBkColor($aButtons[$aTemp[$i] - 1], $iBackColor) Next EndFunc ;==>_HideControls Func _EnforceArray($vParam) ; if only one value is passed, turn it into an array of only 1 element If Not IsArray($vParam) Then Local $aTemp[1] = [$vParam] Return $aTemp EndIf Return $vParam EndFunc ;==>_EnforceArray Func __get_IDs_by_indexes(ByRef $aCtrls, ByRef $aNdxs) ; returns the handles of the controls pointed to by the indexes Local $aTemp[UBound($aNdxs)] For $i = 0 To UBound($aNdxs) - 1 $aTemp[$i] = $aCtrls[$aNdxs[$i] - 1] Next Return $aTemp EndFunc ;==>__get_IDs_by_indexes Func _EndOfGame() ; _WinAPI_PlaySound ("SystemExit" , Null, $SND_ALIAS) GUIDelete() Exit EndFunc ;==>_EndOfGame P.S. At this link (https://web.archive.org/web/20131006161544/http://games.lumosity.com/chimp.html) there is a Flash version of this game.
    • By Vikramjeet
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        2.TJ 1234567890123
        3.TJ 1234567890333
      I am reading a file with last 5 lines as above. I want to be able to loop through and pick the values as follows
      1- Pick 1234567890123
      2- Use it to build a format with N1.1
      3- Pick 1234567890333
      2- Use it to build a format with N2.1
      Need help with the loop. Thank You
    • By SteveJM
      When I use DllStructCreate() to reserve a chunk of memory I would like to know if I can rely on that memory being initialized to zero. Experience suggests that it is, but I have been searching to try and find a definitive statement anywhere that this is the case. I apologise if I have missed somewhere. Part of the reason for this question is so that my next search (after my personal memory has dimmed) should yield a link to this post, hopefully with an answer.
      A number of DLLs I use have structs where a few parts have to be explicitly set and other parts are reserved with the instruction that they must be set to zero. Because DllStructCreate() appears to zero-initialise the memory, I tend to forget to do it explicitly and everything seems to work. I am wondering whether I have been lucky and am storing up trouble for myself. It seems likely that the OS has been asked for zeroed memory, but without a promise in the documentation for DllStructCreate(),  perhaps that could change? Perhaps the developers wish to reserve the right to change their minds?
    • By Pickpocketz88
      First I would just like to say HELLO! to anyone reading. It has been a while since I've posted to the Forums but I'm always crawling around.
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    • By ManualIT
      Guys, i need help on creating a script that restarts a program once it starts using more than 1GB of memory.
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