AutoHotkey is a Windows programs that provides GUI and Keystroke automation and scripting.

Download: http://www.autohotkey.com/

AHK script is the scripting language used to write automation script and key mapping.

The default configuration file for AutoHotKey is under

%userprofile%\Documents\AutoHotKey.ahk

AHKscript online reference: http://www.autohotkey.com/docs/

• additional ref: http://www.jeffjade.com/2016/03/11/2016-03-11-autohotkey/

• remap key and some example

  F3::Send {numpad0}
  0::Send o
  ^0::Send O

• firefox

  #IfWinActive ahk_class MozillaUIWindowClass
  ^+z::Send ^j ; dowload list
  !t::Send ^t ; Open a new tab
  !r::Send ^r ; Reload the page
  !w::Send ^w ; Close the tab
  !q::Send ^+b ; bookmark
  !c::Send ^+{Del} ; clean history
  F2::SendInput, whatapc{Enter}
  Return
  #IfWinActive

• command

  #IfWinActive ahk_class ConsoleWindowClass
  ^V::
  SendInput {Raw}%clipboard%
  return
  #IfWinActive

• notepad

  ;===========notepad
  #IfWinActive ahk_class Notepad
  !MButton::Send {Enter}
  !Escape::Send {Enter}
  Return
  #IfWinActive

• access window menu item

  ; //demo of click XnView application, Tools menu, Set as Wallpaper sub menu, 3rd item
  #IfWinActive ahk_class XmainClass
  F4::WinMenuSelectItem, XnView, , Tools, Set as Wallpaper, 3&
  Return
  #IfWinActive

• window toggle AlwaysOnTop (works on win10 as well) (ref: https://www.groovypost.com/howto/howto/windows-programs-always-on-top/)

  ^SPACE::  Winset, Alwaysontop, , A

• window toggle maximize

  ;===window toggle maximize
  #s::
  WinGet MX, MinMax, A
     If MX
          WinRestore A
     Else WinMaximize A
  return

• window resize

  ;=============base function of resize
      ResizeWin(Width = 0,Height = 0)
      {
        WinGetPos,X,Y,W,H,A
        If %Width% = 0
          Width := W
  
        If %Height% = 0
          Height := H
  
        WinMove,A,,%X%,%Y%,%Width%,%Height%
      }
      PoseWin(locx = 0,locy = 0)
      {
        WinGetPos,X,Y,W,H,A
        If %locx% = 0
          locx := X
  
        If %locy% = 0
          locy := Y
  
        WinMove,A,,%locx%,%locy%,%W%,%H%
      }
  
  #F1::ResizeWin(1024,768)
  #F2::ResizeWin(800,600)
  #F3::ResizeWin(640,480)
  #F4::PoseWin(1,1)

• move window with left-mouse-button drag while holding Windows key

  ;----------------move tool
  LWIN & !LButton::
  
  CoordMode, Mouse  ; Switch to screen/absolute coordinates.
  MouseGetPos, EWD_MouseStartX, EWD_MouseStartY, EWD_MouseWin
  WinGetPos, EWD_OriginalPosX, EWD_OriginalPosY,,, ahk_id %EWD_MouseWin%
  WinGet, EWD_WinState, MinMax, ahk_id %EWD_MouseWin%
  if EWD_WinState = 0  ; Only if the window isn't maximized
      SetTimer, EWD_WatchMouse, 10 ; Track the mouse as the user drags it.
  return
  
  EWD_WatchMouse:
  GetKeyState, EWD_LButtonState, LButton, P
  if EWD_LButtonState = U  ; Button has been released, so drag is complete.
  {
      SetTimer, EWD_WatchMouse, off
      return
  }
  GetKeyState, EWD_EscapeState, Escape, P
  if EWD_EscapeState = D  ; Escape has been pressed, so drag is cancelled.
  {
      SetTimer, EWD_WatchMouse, off
      WinMove, ahk_id %EWD_MouseWin%,, %EWD_OriginalPosX%, %EWD_OriginalPosY%
      return
  }
  ; Otherwise, reposition the window to match the change in mouse coordinates
  ; caused by the user having dragged the mouse:
  CoordMode, Mouse
  MouseGetPos, EWD_MouseX, EWD_MouseY
  WinGetPos, EWD_WinX, EWD_WinY,,, ahk_id %EWD_MouseWin%
  SetWinDelay, -1   ; Makes the below move faster/smoother.
  WinMove, ahk_id %EWD_MouseWin%,, EWD_WinX + EWD_MouseX - EWD_MouseStartX, EWD_WinY + EWD_MouseY - EWD_MouseStartY
  EWD_MouseStartX := EWD_MouseX  ; Update for the next timer-call to this subroutine.
  EWD_MouseStartY := EWD_MouseY
  return