Disables the showing of a tray icon.
#NoTrayIcon
Specifying this anywhere in a script will prevent the showing of a tray icon for that script when it is launched (even if the script is compiled into an EXE).
If you use this for a script that has hotkeys, you might want to bind a hotkey to the ExitApp function. Otherwise, there will be no easy way to exit the program (without restarting the computer or killing the process). For example: #x::ExitApp.
The tray icon can be made to disappear or reappear at any time during the execution of the script by assigning a true or false value to A_IconHidden. The only drawback of using A_IconHidden := true at the very top of the script is that the tray icon might be briefly visible when the script is first launched. To avoid that, use #NoTrayIcon instead.
The built-in variable A_IconHidden contains 1 if the tray icon is currently hidden or 0 otherwise, and can be assigned a value to show or hide the icon.
TraySetIcon, A_IconHidden, A_IconTip, ExitApp
#NoTrayIcon