Determines whether invisible text in a window is "seen" for the purpose of finding the window. This affects built-in functions such as WinExist and WinActivate.
On or 1 (true): Hidden text is detected. This is the default.
Off or 0 (false): Hidden text is not detected.
"Hidden text" is a term that refers to those controls of a window that are not visible. Their text is thus considered "hidden". Turning off DetectHiddenText can be useful in cases where you want to detect the difference between the different panes of a multi-pane window or multi-tabbed dialog. Use Window Spy to determine which text of the currently-active window is hidden. All built-in functions that accept a WinText parameter are affected by this setting, including WinActivate, WinActive, WinWait, and WinExist.
The built-in variable A_DetectHiddenText contains the current setting (On or Off).
Every newly launched thread (such as a hotkey, custom menu item, or timed subroutine) starts off fresh with the default setting for this function. That default may be changed by using this function in the auto-execute section (top part of the script).