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i3.ahk

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+; AutoHotkey v2 script
+SetWorkingDir(A_ScriptDir)
+
+; Path to the DLL, relative to the script
+VDA_PATH := A_ScriptDir . "\VirtualDesktopAccessor.dll"
+hVirtualDesktopAccessor := DllCall("LoadLibrary", "Str", VDA_PATH, "Ptr")
+
+GetDesktopCountProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "GetDesktopCount", "Ptr")
+GoToDesktopNumberProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "GoToDesktopNumber", "Ptr")
+GetCurrentDesktopNumberProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "GetCurrentDesktopNumber", "Ptr")
+IsWindowOnCurrentVirtualDesktopProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "IsWindowOnCurrentVirtualDesktop", "Ptr")
+IsWindowOnDesktopNumberProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "IsWindowOnDesktopNumber", "Ptr")
+MoveWindowToDesktopNumberProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "MoveWindowToDesktopNumber", "Ptr")
+IsPinnedWindowProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "IsPinnedWindow", "Ptr")
+GetDesktopNameProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "GetDesktopName", "Ptr")
+SetDesktopNameProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "SetDesktopName", "Ptr")
+CreateDesktopProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "CreateDesktop", "Ptr")
+RemoveDesktopProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "RemoveDesktop", "Ptr")
+
+; On change listeners
+RegisterPostMessageHookProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "RegisterPostMessageHook", "Ptr")
+UnregisterPostMessageHookProc := DllCall("GetProcAddress", "Ptr", hVirtualDesktopAccessor, "AStr", "UnregisterPostMessageHook", "Ptr")
+
+GetDesktopCount() {
+    global GetDesktopCountProc
+    count := DllCall(GetDesktopCountProc, "Int")
+    return count
+}
+
+MoveCurrentWindowToDesktop(number) {
+    global MoveWindowToDesktopNumberProc, GoToDesktopNumberProc
+    activeHwnd := WinGetID("A")
+    DllCall(MoveWindowToDesktopNumberProc, "Ptr", activeHwnd, "Int", number, "Int")
+    DllCall(GoToDesktopNumberProc, "Int", number, "Int")
+}
+
+GoToPrevDesktop() {
+    global GetCurrentDesktopNumberProc, GoToDesktopNumberProc
+    current := DllCall(GetCurrentDesktopNumberProc, "Int")
+    last_desktop := GetDesktopCount() - 1
+    ; If current desktop is 0, go to last desktop
+    if (current = 0) {
+        MoveOrGotoDesktopNumber(last_desktop)
+    } else {
+        MoveOrGotoDesktopNumber(current - 1)
+    }
+    return
+}
+
+GoToNextDesktop() {
+    global GetCurrentDesktopNumberProc, GoToDesktopNumberProc
+    current := DllCall(GetCurrentDesktopNumberProc, "Int")
+    last_desktop := GetDesktopCount() - 1
+    ; If current desktop is last, go to first desktop
+    if (current = last_desktop) {
+        MoveOrGotoDesktopNumber(0)
+    } else {
+        MoveOrGotoDesktopNumber(current + 1)
+    }
+    return
+}
+
+GoToDesktopNumber(num) {
+       global GoToDesktopNumberProc
+    global IsWindowOnDesktopNumberProc
+    global IsPinnedWindowProc
+
+    ; Switch to target desktop
+    DllCall(GoToDesktopNumberProc, "Int", num, "Int")
+
+    Sleep(150) ; Give Windows a moment to switch
+
+    windows := WinGetList()
+    largestHwnd := 0
+    largestArea := 0
+
+    for hwnd in windows {
+        if !WinExist("ahk_id " hwnd)
+            continue
+        if WinGetMinMax("ahk_id " hwnd) = -1 ; skip minimized
+            continue
+        if !WinGetTitle("ahk_id " hwnd) ; skip untitled
+            continue
+
+        ; Skip pinned windows
+        if DllCall(IsPinnedWindowProc, "Ptr", hwnd, "Int")
+            continue
+
+        ; Only keep windows on the target desktop
+        if !DllCall(IsWindowOnDesktopNumberProc, "Ptr", hwnd, "Int", num, "Int")
+            continue
+
+        WinGetPos(&x, &y, &w, &h, "ahk_id " hwnd)
+        if (w <= 50 || h <= 50) ; skip tiny tool windows
+            continue
+
+        area := w * h
+        if (area > largestArea) {
+            largestArea := area
+            largestHwnd := hwnd
+        }
+    }
+
+    if (largestHwnd)
+        WinActivate("ahk_id " largestHwnd)
+	
+    return
+}
+MoveOrGotoDesktopNumber(num) {
+    ; If user is holding down Mouse left button, move the current window also
+    if (GetKeyState("LButton")) {
+        MoveCurrentWindowToDesktop(num)
+    } else {
+        GoToDesktopNumber(num)
+    }
+    return
+}
+GetDesktopName(num) {
+    global GetDesktopNameProc
+    utf8_buffer := Buffer(1024, 0)
+    ;ran := DllCall(GetDesktopNameProc, "Int", num, "Ptr", utf8_buffer, "Ptr", utf8_buffer.Size, "Int")
+    name := StrGet(utf8_buffer, 1024, "UTF-8")
+    return name
+}
+SetDesktopName(num, name) {
+    global SetDesktopNameProc
+    OutputDebug(name)
+    name_utf8 := Buffer(1024, 0)
+    StrPut(name, name_utf8, "UTF-8")
+    ran := DllCall(SetDesktopNameProc, "Int", num, "Ptr", name_utf8, "Int")
+    return ran
+}
+CreateDesktop() {
+    global CreateDesktopProc
+    ran := DllCall(CreateDesktopProc, "Int")
+    return ran
+}
+RemoveDesktop(remove_desktop_number, fallback_desktop_number) {
+    global RemoveDesktopProc
+    ran := DllCall(RemoveDesktopProc, "Int", remove_desktop_number, "Int", fallback_desktop_number, "Int")
+    return ran
+}
+
+; SetDesktopName(0, "It works! 🐱")
+
+DllCall(RegisterPostMessageHookProc, "Ptr", A_ScriptHwnd, "Int", 0x1400 + 30, "Int")
+OnMessage(0x1400 + 30, OnChangeDesktop)
+OnChangeDesktop(wParam, lParam, msg, hwnd) {
+    Critical(1)
+    OldDesktop := wParam + 1
+    NewDesktop := lParam + 1
+    Name := GetDesktopName(NewDesktop - 1)
+
+    ; Use Dbgview.exe to checkout the output debug logs
+    OutputDebug("Desktop changed to " Name " from " OldDesktop " to " NewDesktop)
+    ; TraySetIcon(".\Icons\icon" NewDesktop ".ico")
+}
+
+!1::GoToDesktopNumber(0)
+!2::GoToDesktopNumber(1)
+!3::GoToDesktopNumber(2)
+!q::GoToDesktopNumber(3)
+!w::GoToDesktopNumber(4)
+!e::GoToDesktopNumber(5)
+!7::GoToDesktopNumber(6)
+!8::GoToDesktopNumber(7)
+!9::GoToDesktopNumber(8)
+!0::GoToDesktopNumber(9)
+
+!+1::MoveCurrentWindowToDesktop(0)
+!+2::MoveCurrentWindowToDesktop(1)
+!+3::MoveCurrentWindowToDesktop(2)
+!+4::MoveCurrentWindowToDesktop(3)
+!+5::MoveCurrentWindowToDesktop(4)
+!+6::MoveCurrentWindowToDesktop(5)
+!+7::MoveCurrentWindowToDesktop(6)
+!+8::MoveCurrentWindowToDesktop(7)
+!+9::MoveCurrentWindowToDesktop(8)
+!+0::MoveCurrentWindowToDesktop(9)