Get Last Focused Window

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Description	This script gets the previously focused window (2nd window in the z-order).
Language	C#
Minimum Version	9.1+
Created By	Thomas Malloch (BFS)
Contributors	-
Date Created	May 15, 2018
Date Last Modified	Aug 27, 2018

Scripted Function (Macro) Code

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using System; using System.Collections.Generic; using System.Drawing; using System.Runtime.InteropServices; // The 'windowHandle' parameter will contain the window handle for the: // - Active window when run by hotkey // - Window Location target when run by a Window Location rule // - TitleBar Button owner when run by a TitleBar Button // - Jump List owner when run from a Taskbar Jump List // - Currently focused window if none of these match public static class DisplayFusionFunction { [DllImport("user32.dll", SetLastError = true)] static extern IntPtr GetWindow(IntPtr hWnd, uint uCmd); //some constants const uint GW_HWNDNEXT = 2; public static void Run(IntPtr windowHandle) { BFS.Dialog.ShowMessageInfo( BFS.Window.GetText( GetWindowByZOrder(2) ) ); } private static IntPtr GetWindowByZOrder(uint zOrder) { if(zOrder == 1) return BFS.Window.GetFocusedWindow(); //get the visible window handles for that monitor HashSet<IntPtr> visibleWindows = new HashSet<IntPtr>( BFS.Window.GetVisibleWindowHandles() ); //enumerate through the monitors, starting with the focused window, and moving down //only enumerate if we havn't found the windows yet IntPtr topmost = BFS.Window.GetFocusedWindow(); int lastZOrderFound = 1; for (IntPtr window = GetWindow(topmost, GW_HWNDNEXT); ; window = GetWindow(window, GW_HWNDNEXT)) { //check to see if there are no windows left if(window == IntPtr.Zero) break; //check to see if the window is visible. if it's not, ignore it if(!visibleWindows.Contains(window)) continue; //if it is a window we should ignore, ignore it if(IsDisplayFusionWindowOrHiddenExplorerWindow(window)) continue; //this is a cantidate! increment the lastZOrderFound, and see if we're at the level we want lastZOrderFound++; if (lastZOrderFound != zOrder) continue; return window; } //return IntPtr.Zero if we didn't find anything return IntPtr.Zero; } private static bool IsDisplayFusionWindowOrHiddenExplorerWindow(IntPtr window) { //ignore any DisplayFusion windows (title bar buttons, etc.) //ignore pesky hidden explorer.exe windows if((BFS.Window.GetClass(window).StartsWith("DF", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("EdgeUiInputTopWndClass", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("EdgeUiInputWndClass", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("NativeHWNDHost", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("ModeInputWnd", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("MetroGhostWindow", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("ImmersiveLauncher", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("ApplicationManager_ImmersiveShellWindow", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("Shell_TrayWnd", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("WorkerW", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("Progman", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetClass(window).Equals("SearchPane", StringComparison.OrdinalIgnoreCase)) || (BFS.Window.GetText(window).Equals(""))) { return true; } return false; } }