Replaces the currently running instance of the script with a new one.
Reload
This function is useful for scripts that are frequently changed. By assigning a hotkey to this function, you can easily restart the script after saving your changes in an editor.
Any command-line parameters passed to the original script are not passed to the new instance. To pass such parameters, do not use Reload. Instead, use Run in conjunction with A_AhkPath and A_ScriptFullPath (and A_IsCompiled if the script is ever used in compiled form). Also, include the string /restart as the first parameter (i.e. after the name of the executable), which tells the program to use the same behavior as Reload. See also: command line switches and syntax.
When the script restarts, it is launched in its original working directory (the one that was in effect when it was first launched). In other words, SetWorkingDir will not change the working directory that will be used for the new instance.
If the script cannot be reloaded -- perhaps because it has a syntax error -- the original instance of the script will continue running. Therefore, the reload function should be followed by whatever actions you want taken in the event of a failure (such as a return to exit the current subroutine). To have the original instance detect the failure, follow this example:
Reload
Sleep 1000 ; If successful, the reload will close this instance during the Sleep, so the line below will never be reached.
Result := MsgBox("The script could not be reloaded. Would you like to open it for editing?",, 4)
if Result = "Yes"
Edit
return
^!r::Reload ; Assign Ctrl-Alt-R as a hotkey to restart the script.