Remap the Keyboard in Windows: AutoHotkey

.keyboard_setting.ahk

if not A_IsAdmin {
    Run('*RunAs "' A_ScriptFullPath '"')
    ExitApp()
}

; Log GUI
; global g_LogGui := Gui("+Resize +AlwaysOnTop", "AHK Log")
; global g_LogEdit := g_LogGui.Add("Edit", "ReadOnly -Wrap w500 h300")
; g_LogGui.Show("NoActivate")
;
; Log(msg) {
;     global g_LogEdit
;     g_LogEdit.Value .= "[" FormatTime(, "HH:mm:ss") "] " msg "`n"
;     SendMessage(0xB1, -1, -1, g_LogEdit)   ; EM_SETSEL: move caret to end
;     SendMessage(0xB7, 0, 0, g_LogEdit)     ; EM_SCROLLCARET: scroll to caret
; }

; GroupAdd("Vim_Only", "ahk_exe devenv.exe")  ; Visual Studio 2019
; GroupAdd("Vim_Only", "ahk_exe Code.exe")    ; Visual Studio Code
; GroupAdd("Vim_Only", "ahk_exe msedge.exe")  ; Edge

; Left Alt + h / j / k / l 為方向鍵
; #HotIf WinActive("ahk_group Vim_Only")
;     <!h::Send("{Left}")
;     <!j::Send("{Down}")
;     <!k::Send("{Up}")
;     <!l::Send("{Right}")
; #HotIf

<!h:: Send("{Left}")
<!j:: Send("{Down}")
<!k:: Send("{Up}")
<!l:: Send("{Right}")

; Left Ctrl + J 切換輸入語言 (Left Alt + Shift)
; <^J:: {
;     KeyWait("Ctrl")
;     KeyWait("J")
;     ; Send("{LAlt down}{Shift}{LAlt up}")               ; {LAlt down}{Shift down}{Shift up}{LAlt up} 中文輸入法的輸入模式會交替互換，這次為中文、下次換英數字元
;                                                      ; {Shift down}{LAlt down}{LAlt up}{Shift up} 切換輸入語言後，會停留在工具列上 (e.g., File)
;     Send("{LAlt down}{Shift down}{LAlt up}{Shift up}")  ; 避免中文輸入法的輸入模式會交替互換
; }
; [使用AutoHotkey快速切換語言鍵盤，和超難用的Ctrl/Alt+Shift說再見！（AHK #9） – 簡睿隨筆](https://jdev.tw/blog/5738)
<^J:: {
    ; 改用 SPI_GETDEFAULTINPUTLANG（SystemParametersInfo）讀取系統預設輸入法
    buf := Buffer(4, 0)
    DllCall("SystemParametersInfo", "UInt", 0x0059, "UInt", 0, "UPtr", buf.Ptr, "UInt", 0)
    langId := NumGet(buf, 0, "UInt") & 0xFFFF
    if (langId = 0x0409) {  ; 目前為英文，切換為中文
        SetDefaultKeyboard(0x0404)
        ; Log("切換輸入法: 英文 → 中文")
    } else {              ; 目前為中文，切換為英文
        SetDefaultKeyboard(0x0409)
        ; Log("切換輸入法: 中文 → 英文")
    }
}

SetDefaultKeyboard(LocaleID) {
    SPI_SETDEFAULTINPUTLANG := 0x005A
    SPIF_SENDWININICHANGE := 2
    Lan := DllCall("LoadKeyboardLayout", "Str", Format("{:08x}", LocaleID), "Int", 0)
    buf := Buffer(4, 0)
    NumPut("UInt", LocaleID, buf, 0)
    ;Lan := 0xE0090404
    DllCall("SystemParametersInfo", "UInt", SPI_SETDEFAULTINPUTLANG, "UInt", 0, "UPtr", buf.Ptr, "UInt",
        SPIF_SENDWININICHANGE)
    windows := WinGetList()
    for hwnd in windows {
        PostMessage(0x50, 0, Lan, , "ahk_id " hwnd)
    }
}

^h:: Send("{Backspace}")
#HotIf IsExcludedApp()
^w:: Send("^{Backspace}")
;    ^d::Send("{Delete}")
#HotIf

IsExcludedApp() {
    exeName := WinGetProcessName("A")

    if (exeName = "Code.exe" || exeName = "devenv.exe" || exeName = "bash.exe" || exeName = "WindowsTerminal.exe" ||
        exeName = "warp.exe")
        return true

    return false
}

; CapsLock 鍵改成 Esc 鍵
*CapsLock:: {
    KeyWait("CapsLock")
    if (A_ThisHotkey = "*CapsLock")
        Send("{Blind}{Esc}")
}

; Ctrl+Shift+O to open containing folder in Explorer.
; Ctrl+Shift+E to open folder with current file selected.
; Supports SciTE and Notepad++.
; ^+o::
; ^+e:: {
;     path := WinGetTitle("A")
;     if (RegExMatch(path, "\*?\K(.*)\\[^\\]+(?= [-*] )", &match)) {
;         path := match[1]
;         if (FileExist(path) && A_ThisHotkey = "^+e")
;             Run('explorer.exe /select,"' path '"')
;         else
;             Run('explorer.exe "' path '"')
;     }
; }

; Moving the Mouse Cursor via the Keyboard
; *#up::MouseMove(0, -10, 0, "R")  ; Win+UpArrow hotkey => Move cursor upward
; *#Down::MouseMove(0, 10, 0, "R")  ; Win+DownArrow => Move cursor downward
; *#Left::MouseMove(-10, 0, 0, "R")  ; Win+LeftArrow => Move cursor to the left
; *#Right::MouseMove(10, 0, 0, "R")  ; Win+RightArrow => Move cursor to the right
;
; *<#RCtrl:: {  ; LeftWin + RightControl => Left-click (hold down Control/Shift to Control-Click or Shift-Click).
;     SendEvent("{Blind}{LButton down}")
;     KeyWait("RCtrl")  ; Prevents keyboard auto-repeat from repeating the mouse click.
;     SendEvent("{Blind}{LButton up}")
; }
;
; *<#AppsKey:: {  ; LeftWin + AppsKey => Right-click
;     SendEvent("{Blind}{RButton down}")
;     KeyWait("AppsKey")  ; Prevents keyboard auto-repeat from repeating the mouse click.
;     SendEvent("{Blind}{RButton up}")
; }