Understanding RUN example

[junkew]

Example()

Func Example()
    ; Run Notepad with the window maximized.
    Local $iPID = Run("notepad.exe", "", @SW_SHOWMAXIMIZED)

    ; Wait 10 seconds for the Notepad window to appear.
    WinWait("[CLASS:Notepad]", "", 10)

    ; Wait for 2 seconds.
    Sleep(2000)

    ; Close the Notepad process using the PID returned by Run.
    ProcessClose($iPID)
EndFunc   ;==>Example

In above example I do not fully understand why the WinWait is there whereas the $iPID already has a running program.

At what point is Run continuing with the next line in the script.

Is there a timelap moment between having a process ID and having a window?

 

[water]

Run returns as soon as the program has been started.
Then notepad starts processing and sooner or later displays the window.

So yes, I think there is a timelapse between Run returning the PID and Notepad displaying the window.

[junkew]

thx. 

But does this then make sense? Run returns PID according to help but when should I then wait with a processwait

$result = Run(..., $workingDir, $windowState)
            $PID  = ProcessWait($processName, 60)
            
            or 
            
            $PID = Run(..., $workingDir, $windowState)

 

[water]

ProcessWait does not make sense as $PID is the same as $result.
But WinWait makes sense because the PID is returned before the WIndows gets displayed.

[BrewManNH]

The WinWait in the example serves no purpose, I'm not even sure what why it's in there because it doesn't do anything in the script. It's pointless to have it.

Edited February 20, 2016 by BrewManNH
typo

[junkew]

winwait makes sense

processwait seems only to be usefull when you are not starting the application yourself

Although I have run below script it seems not to close the wordpad process whereas for notepad things go fine

Example("write.exe","[CLASS:WordPadClass]")
Example("notepad.exe","[CLASS:Notepad]")

Func Example($p,$w)
    ; Run Notepad with the window maximized.
    Local $iPID = Run($p, "")
;~  consolewrite("PID after RUN " & $iPID & @CRLF)

    $i=0
    while not processexists($p) and $i <=500
        $i=$i+1
        consolewrite("Process waiting " & $p & $i  & @CRLF)
;~      sleep(1)
    WEnd
;~      $iPID  = ProcessWait($p, 60)

    $i=0
    while not winexists($w) and $i<=500
        $i=$i+1
        consolewrite("Window waiting " & $w & $i & @CRLF)
;~      sleep(1)
    WEnd

    ; Wait for 2 seconds.
    Sleep(2000)

    ; Close the process using the PID returned by Run.
    ProcessClose($iPID)

    ; Wait for 2 seconds.
    Sleep(2000)
EndFunc   ;==>Example