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Mechaflash

Detecting an application opening another application

4 posts in this topic

So I use PrimoPDF to auto-convert some files to PDF for me. After it's done with the conversion, it opens the file in whatever default application its made to open PDF files in (in my case Foxit).

I want to be able to track the handle to the spawned window from PrimoPDF so I can close it directly instead of blindly using a WinClose()/WinKill() against a named window, as the user may have Foxit reader open with another document.

I could check all of the Foxit Reader.exe processes that are running prior to starting, then check those spawned instances against it... but I was hoping for a more straight-forward approach.


Spoiler

“Hello, ladies, look at your man, now back to me, now back at your man, now back to me. Sadly, he isn’t me, but if he stopped using ladies scented body wash and switched to Old Spice, he could smell like he’s me. Look down, back up, where are you? You’re on a boat with the man your man could smell like. What’s in your hand, back at me. I have it, it’s an oyster with two tickets to that thing you love. Look again, the tickets are now diamonds. Anything is possible when your man smells like Old Spice and not a lady. I’m on a horse.”

 

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Check it uses WinAPIEx to track the child process of another program.


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#3 ·  Posted (edited)

Thanks for the link Brew. This is what I ended up with. Looks a bit dirty, but I noticed that PrimoPDF spawns 2 processes, and they may overlap eachother for a split second: First program being what it opens to perform the pseudo-print command (if its a txt file it opens notepad.exe by default) and the second the pdf viewer (foxit reader.exe).

Func _ConvertFiles()
    $sConvertFolder = @AppDataDir & "PDF MergePROCESSING FOLDERConvert"
    $key = "HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionUninstallPrimoPDF"
    $primo = StringTrimLeft(StringTrimRight(RegRead($key, "InstallLocation"), 1), 1) & "PrimoPDF.exe"
    $asConvertFolder = _RecFileListToArray($sConvertFolder, "*", 1, 0, 0, 2)
    _ArrayDelete($asConvertFolder, 0)
    For $files in $asConvertFolder
        $hPrimo = Run($primo & ' "' & $files & '"', $sConvertFolder, "Open")
        TrayTip(@ScriptName, "File: " & $files & " being converted...", 5)
        _KillChildProcess($hPrimo)
    Next
    msgbox(0,"","STOPPING AT END OF CONVERT LOOP BEFORE CLEANUP")
    _Cleanup()
EndFunc

  Func _KillChildProcess($hPrimo)
    While 1
      Sleep(1000)
      $aiChild = _WinAPI_EnumChildProcess($hPrimo)
      If Not IsArray($aiChild) Then ContinueLoop
      If Not $aiChild[1][1] = "Foxit Reader.exe" Then
        ContinueLoop
      ElseIf Ubound($aiChild) > 2 Then
        If Not $aiChild[2][1] = "Foxit Reader.exe" Then
          ContinueLoop
        Else
          ProcessClose($aiChild[1][0])
          ExitLoop
        EndIf
      Else
        ProcessClose($aiChild[1][0])
        ExitLoop
      EndIf
    WEnd
  EndFunc

EDIT: Moved the whole Child process check to its own function

Edited by mechaflash213

Spoiler

“Hello, ladies, look at your man, now back to me, now back at your man, now back to me. Sadly, he isn’t me, but if he stopped using ladies scented body wash and switched to Old Spice, he could smell like he’s me. Look down, back up, where are you? You’re on a boat with the man your man could smell like. What’s in your hand, back at me. I have it, it’s an oyster with two tickets to that thing you love. Look again, the tickets are now diamonds. Anything is possible when your man smells like Old Spice and not a lady. I’m on a horse.”

 

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Discovered something awkward about PrimoPDF usage...

Using the above on txt files seem fine (largest was only around 10kb however). I used it on a 300kb .doc file, which PrimoPDF uses OpenOffice to perform its pseudo-print. The loop kept exiting before the foxit reader window was ever even created. So the test script would end and foxit would popup with the finished document still.

Discovered that it did find a PID the first time around, and killed it, but then Primo spawned ANOTHER instance. I suppose since it wasn't done loading the first instance, it thought there was an error so it killed the second instance as well. Ugh...

So I added an additional loop to check again... and now it loops indefinitely because everytime it kills the process prior to the window coming up, it spawns a new one...


Spoiler

“Hello, ladies, look at your man, now back to me, now back at your man, now back to me. Sadly, he isn’t me, but if he stopped using ladies scented body wash and switched to Old Spice, he could smell like he’s me. Look down, back up, where are you? You’re on a boat with the man your man could smell like. What’s in your hand, back at me. I have it, it’s an oyster with two tickets to that thing you love. Look again, the tickets are now diamonds. Anything is possible when your man smells like Old Spice and not a lady. I’m on a horse.”

 

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