Do Until Loops

To create a Do Until loop, we will first delacre the count variable, this will be incremented on each loop execution.

Local $i = 0

Next we'll create the actual Loop, the until statement says that the loop should continue until the $counter equals 10, which will never happen as it is currently. I.e.

Do
Until $counter = 10

For the counter to actually count, we will need to increment it, which can be done with the following piece of code.

$counter = $counter + 1

Full script:

Local $counter = 0
Do
  MsgBox(0, "Value of $i is:", $i)
  $counter = $counter + 1
Until $counter = 10

While Loops

The while loop begins with the while keyword, followed by a statement – while the statement is false, the loop will continue running.

$counter = 0
While $counter <= 5
    MsgBox(0, "Value of $counter is:", $counter)
    $counter = $counter + 1
WEnd

As you can see, the syntax reminds a lot of that in the Do Until example.

For Loops

The For loop may feel a bit different, or harder to use for some – but as a rule of thumb, you should just remember that the statement is written immediately after the For keyword. Also, the counter is automatically incremented after each iteration, which avoids having to do it inside the loop block itself, and that somewhat simplifies the code.

For $counter = 1 to 10
    MsgBox(0, "Counter: ", $counter)
Next

Local $aArray[4]

$aArray[0] = "Hallo"
$aArray[1] = 0
$aArray[2] = 1.9233
$aArray[3] = "Another String"

Local $string = ""
For $element In $aArray
    $string = $string & $element & @CRLF
Next
MsgBox(0, "For..IN Arraytest", "Result is: " & @CRLF & $string)

Local $oShell = ObjCreate("shell.application")
Local $oShellWindows = $oShell.windows

If IsObj($oShellWindows) Then
    $string = ""

    For $Window In $oShellWindows
        $string = $string & $Window.LocationName & @CRLF
    Next

    MsgBox(0, "", "Your Current Open Shell Windows:" & @CRLF & $string)
Else

    MsgBox(0, "", "You have no open Shell Windows.")
EndIf