Changes the title of the specified window.
WinSetTitle NewTitle , WinTitle, WinText, ExcludeTitle, ExcludeText
The new title for the window. If this is the only parameter given, the Last Found Window will be used.
Type: String, Integer or Object
If each of these is blank or omitted, the Last Found Window will be used. Otherwise, specify for WinTitle a window title or other criteria to identify the target window and/or for WinText a substring from a single text element of the target window (as revealed by the included Window Spy utility).
ExcludeTitle and ExcludeText can be used to exclude one or more windows by their title or text. Their specification is similar to WinTitle and WinText, except that ExcludeTitle does not recognize any criteria other than the window title.
Window titles and text are case-sensitive. By default, hidden windows are not detected and hidden text elements are detected, unless changed with DetectHiddenWindows and DetectHiddenText. By default, a window title can contain WinTitle or ExcludeTitle anywhere inside it to be a match, unless changed with SetTitleMatchMode.
A TargetError is thrown if the window could not be found.
An OSError is thrown if the change could not be applied.
A change to a window's title might be merely temporary if the application that owns the window frequently changes the title.
WinMove, WinGetTitle, WinGetText, ControlGetText, WinGetPos, Win functions
WinSetTitle("This is a new title", "Untitled - Notepad")
Run "notepad.exe" WinWaitActive "Untitled - Notepad" WinSetTitle "This is a new title" ; Use the window found by WinWaitActive.
Opens the main window, waits until it is active and changes its title.
ListVars WinWaitActive "ahk_class AutoHotkey" WinSetTitle "This is a new title" ; Use the window found by WinWaitActive.