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Getting the win title and pid of active window


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I need to run an operation [the _ReduceMemory() function] on several groups of processes, such as IE, Outlook, and another 3rd party program. This function requires a PID.  However, I want to be able to skip the active window.

I can use WinGetTitle(["active"]) to see if the current active window matches my criteria.

I can use WinGetProcess() to get the PID, however there are always multiple instances of the 3rd party program running and this process only returns one PID, not all of them.

I can use WinList() to get an HWND, but don't know how to convert this to PID.

I want to run _ReduceMemory() on the non-active instances while skipping the active foreground process.

I can't seem to reconcile how to do this.  Any help would be greatly appreciated.


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Local $var = WinList()
Local $s_PID_Buffer
For $i = 2 To $var[0][0]
If BitAND(WinGetState($var[$i][1]), 2) Then ; is visible
if not StringInStr($s_PID_Buffer,";" & WinGetProcess($var[$i][1]) & ";") then ; show PID only once
$s_PID_Buffer &= ";" & WinGetProcess($var[$i][1]) & ";"
ConsoleWrite($i & @TAB & "Title=" & $var[$i][0] & @LF & "Handle=" & $var[$i][1] & @CRLF & "PID: " & WinGetProcess($var[$i][1]) & @CRLF & @CRLF)
"Is visible" and "Show PID only once" are of course optional.

Afaik Winlist() returns the windows in z-order, meaning the first one is the currently active one. So starting the enumeration with $i = 2 should skip the active window.

Edited by KaFu
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How can I then determine which of these is the active window?

As KaFu told you:

Afaik Winlist() returns the windows in z-order, meaning the first one is the currently active one. So starting the enumeration with $i = 2 should skip the active window.

which is also my experience. ;)

You could also get the active handle directly and so avoid it when looping through the list: :)

$hActive = WinGetHandle("[ACTIVE]")

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I did a sleep(2000) at the beginning and set $i=1, just to see what happened. 

In this 2 second period, I switched to IE.  The program returned:


PID: 5800

Title=Remote Manager
PID: 568

Title=Getting the win title and pid of active window - General Help and Support - AutoIt Forums - Windows Internet Explorer
PID: 5852

Title=Windows Command Processor
PID: 4800


So I am not 100% sure z-order is returned for me on Win 7.

That being said,

$hActive = WinGetHandle("[ACTIVE]")

will be very helpful.  I think this is exactly what I needed.  Thanks M23!

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Just an FYI, the _ReduceMemory function doesn't actually reduce the memory used by a program, it just takes what's in memory and swaps it out to the hard drive to the swap file. This just makes your programs run slower, doesn't really do much in the way of reducing memory used, and generally isn't a useful thing to do.

Let Windows manage the memory used, the developers of it probably have a much better idea of how to manage memory than the average user.

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to get the pid

#include <WinAPI.au3>
$iProcessID = ""
_WinAPI_GetWindowThreadProcessId(WinGetHandle("[ACTIVE]"), $iProcessID)
ConsoleWrite($iProcessID & @CRLF)
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