Func with optional arguments, but mandatory if entered

[alongsnake]

The best example is MouseClick, where you have MouseClick($Button, [$x, $y, [..........]]) Where if X is set, Y must be set too.

I do know how to make it so that X and Y are optional, but I am not sure how to get Y mandatory if X is set. I did check the help, but didn't see anything there.

Thanks in advance

[Jos]

No sure I understand the true issue here, but just do a simply with $y and $x in the Func itself and only make $x mandatory?

Jos

[alongsnake]

You know how you can do MouseClick and not specify a position argument? It will just click where ever the mouse is. If you want to specify a position, you have to specify both X and Y. It is optional to specify an X and Y, but if you do, they both have to be.

[jguinch]

Something like this ?

Func Function($x = Default, $y = Default)
    If ($x <> Default AND $y = Default) OR ($x = Default AND $y <> Default) Then
        Return SetError(1, 0, 0)
    ElseIf $x = Default Then
        ConsoleWrite("X and Y not set")
    Else
        ConsoleWrite("X and Y set")
    EndIf
EndFunc

 

[JohnOne]

_MouseClick(10)

Func _MouseClick($x = 0, $y = 0)
    If @NumParams = 1 Then
        Return SetError(1)
    EndIf
    MsgBox(0,"Yay","Click mouse")
EndFunc