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Have number increase each time a button is pressed

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I want the number in a file to be overwritten with the next number up each time a button is pressed. 

So it is pressed once, the number '1' is written to the file. It is pressed again and the number '2' overwrites the first number.

At the moment I get the number 1 written, but can't get it to overwrite. What I have so far:

#include <ButtonConstants.au3>
#include <GUIConstantsEx.au3>
#include <StaticConstants.au3>
#include <WindowsConstants.au3>
#include <FileConstants.au3>
#include <MsgBoxConstants.au3>
#include <WinAPIFiles.au3>
#Region ### START Koda GUI section ### Form=C:\Users\soulf\Desktop\CalcGui\RLCalc.kxf
$Form1 = GUICreate("Form1", 615, 437, 426, 141)
$One = GUICtrlCreateButton("1", 32, 72, 25, 25)
GUICtrlSetBkColor(-1, 0xFF0000)

GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###

Func First ()
    $fPath = "C:\temp\First.txt"
    $fOpen = FileOpen ($fPath, 2)
    $Counter = FileReadLine ($fpath)
    $counter = $counter + 1
    $fWrite = filewriteline ($fPath, $counter)

    FileClose ($fpath)

EndFunc

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
        Case $One
            Call ("First")

    EndSwitch
WEnd

I tried a Do Until statement, but that just puts the numbers 1 to 5 in the file.

Any help would be greatly appreciated! 

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Declare $counter as global variable or local Static :

$Form1 = GUICreate("Form1", 615, 437, 426, 141)
$One = GUICtrlCreateButton("1", 32, 72, 25, 25)
GUICtrlSetBkColor(-1, 0xFF0000)

GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###

Func First ()
    Local Static $counter = 0
    $counter += 1
    $fPath = "C:\temp\First.txt"
    $fOpen = FileOpen ($fPath, 2)
    $Counter = FileReadLine ($fpath)
    $fWrite = filewriteline ($fPath, $counter)

    FileClose ($fpath)
EndFunc

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
        Case $One
            ; Call ("First") <---- Call not needed
            First()
    EndSwitch
WEnd

 

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Note you haven't used the file handle from FileOpen function in the FileClose function.

#include <GUIConstantsEx.au3>

Global $fPath = "First.txt" ; This file will be created in the script's directory (no path).

Local $Form1 = GUICreate("Form1", 615, 437, 426, 141)

Local $One = GUICtrlCreateButton("0", 32, 72, 25, 25)
GUICtrlSetBkColor(-1, 0xFF0000)
If FileExists($fPath) Then GUICtrlSetData($One, FileRead($fPath))

GUISetState(@SW_SHOW)

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
        Case $One
            _First()
    EndSwitch
WEnd


Func _First()
    Local $Counter = FileRead($fPath)
    $Counter = $Counter + 1
    Local $fOpen = FileOpen($fPath, 2) ;     $FO_OVERWRITE (2) = Write mode (erase previous contents)
    FileWrite($fOpen, $Counter) ; Use file handle write mode.
    FileClose($fOpen)
    GUICtrlSetData($One, $Counter) ; Update the text on button.
EndFunc   ;==>_First

 

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20 hours ago, jguinch said:

Declare $counter as global variable or local Static :

$Form1 = GUICreate("Form1", 615, 437, 426, 141)
$One = GUICtrlCreateButton("1", 32, 72, 25, 25)
GUICtrlSetBkColor(-1, 0xFF0000)

GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###

Func First ()
    Local Static $counter = 0
    $counter += 1
    $fPath = "C:\temp\First.txt"
    $fOpen = FileOpen ($fPath, 2)
    $Counter = FileReadLine ($fpath)
    $fWrite = filewriteline ($fPath, $counter)

    FileClose ($fpath)
EndFunc

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
        Case $One
            ; Call ("First") <---- Call not needed
            First()
    EndSwitch
WEnd

 

Thanks for the help with this one, but it unfortunately it just created a blank file.

19 hours ago, Malkey said:

Note you haven't used the file handle from FileOpen function in the FileClose function.

#include <GUIConstantsEx.au3>

Global $fPath = "First.txt" ; This file will be created in the script's directory (no path).

Local $Form1 = GUICreate("Form1", 615, 437, 426, 141)

Local $One = GUICtrlCreateButton("0", 32, 72, 25, 25)
GUICtrlSetBkColor(-1, 0xFF0000)
If FileExists($fPath) Then GUICtrlSetData($One, FileRead($fPath))

GUISetState(@SW_SHOW)

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
        Case $One
            _First()
    EndSwitch
WEnd


Func _First()
    Local $Counter = FileRead($fPath)
    $Counter = $Counter + 1
    Local $fOpen = FileOpen($fPath, 2) ;     $FO_OVERWRITE (2) = Write mode (erase previous contents)
    FileWrite($fOpen, $Counter) ; Use file handle write mode.
    FileClose($fOpen)
    GUICtrlSetData($One, $Counter) ; Update the text on button.
EndFunc   ;==>_First

 

This worked perfectly! Thanks so much for your help. You actually went above and beyond and got me on my way with my next challenge of having the number on the button update (well it will be on a label, but same-same!)

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