c# - Retrieve order of open windows as ordered in the Alt-Tab list? -


this entire code of c# application, simple goal. want retrieve open windows on system, ordered how opened, in alt-tab list. alt-tab list lists programs last opened, pressing alt-tab , releasing once take last window had opened. code windows 10. code below information need, not in right order. should information need?

using system; using system.collections.generic; using system.diagnostics; using system.linq; using system.runtime.interopservices; using system.text; using system.threading.tasks;  namespace getopenwindowname {     class program     {         static void main(string[] args)         {             process[] processlist = process.getprocesses();              foreach (process process in processlist)             {                 if (!string.isnullorempty(process.mainwindowtitle))                 {                     console.writeline("process: {0} id: {1} window title: {2}", process.processname, process.id, process.mainwindowtitle);                 }             }              console.readline();         }     } }

so, best able do, of @paulf, @stuartd, , @iinspectible.

the order of windows in alt-tab list z-order of windows. @iinspectible informs window set topmost break this, part, z-order can respected. so, need z-order of open windows.

first, need bring in external function getwindow, using these 2 lines:

[dllimport("user32.dll", setlasterror = true)] private static extern intptr getwindow(intptr hwnd, int nindex);

once function exists, can create function z-order:

public static int getzorder(process p) {     intptr hwnd = p.mainwindowhandle;     var z = 0;     // 3 getwindowtype.gw_hwndprev     (var h = hwnd; h != intptr.zero; h = getwindow(h, 3)) z++;     return z; }

key point: 3 in call getwindow function flag:

/// <summary> /// retrieved handle identifies window above specified window in z order. /// <para /> /// if specified window topmost window, handle identifies topmost window. /// if specified window top-level window, handle identifies top-level window. /// if specified window child window, handle identifies sibling window. /// </summary> gw_hwndprev = 3,

these building blocks finding z-order of windows process list, (for part) alt-tab order is.


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