"Variable used without being declared" problem

[Maurice 0]

HotKeySet ( "{PAUSE}", "Pos_1" )
    ToolTip( "Place Mouse cursor on top left point and press PAUSE", @Desktopwidth / 2, 7, "", 0, 2)

func Pos_1()
    $first = MouseGetPos()
    HotKeySet ( "{PAUSE}", "Pos_2" )
    ToolTip( "Place Mouse cursor on bottom right point and press PAUSE", @Desktopwidth / 2, 7, "", 0, 2)
endfunc

func Pos_2()
    $second = MouseGetPos()
    HotKeySet ( "{PAUSE}", "Quit" )
    ToolTip( "Press PAUSE to quit", @Desktopwidth / 2, 7, "", 0, 2)
    Doing()
endfunc

func Quit()
    Exit
endfunc

sleep(2000)

Func Doing()
    while 1 
        MouseClick ( "left" , random( $first[1] , $second[1] ), random($first[2] , $second[2] ), 1 , 0)
        sleep(10)
    WEnd
endfunc

Error:

MouseClick ( "left" , random( $first[1] , $second[1] ), random($first[2] , $second[2] ), 1 , 0)

MouseClick ( "left" , random( ^ Variable used without being declared.

MouseGetPos page

As you can see I declared $first and $second in the $first = MouseGetPos() at the beginning.

So why isn't it working?

Edited August 26, 2007 by Maurice

[MHz 72]

The undeclared variables are of Local scope as the rules of Dim apply. You will need to declare them as Global to share between functions are pass as a function parameter.

Dim = Local scope if the variable name doesn't already exist globally (in which case it reuses the global variable!)

[Maurice 0]

Thank you very much. Didn't know I had to declare variables if I want to have them global.