That's because Grade uses NukeWrapper which hides much of the complexity of 
handling the inputs for you.

-jonathan

On May 27, 2011, at 10:54 AM, Steven Booth wrote:

> I might also observe (with a certain degree of irony) that the ‘Grade.cpp’ 
> example contains no reference to ‘optional_input’.
>  
> Steve
>  
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Steve3D
> Sent: Friday, May 27, 2011 10:21 AM
> To: [email protected]
> Subject: [Nuke-dev] Side-mounted arrows
>  
> I've been trying to figure this out for a couple days, with no luck, so I 
> thought I'd place the query here.
> 
> I have a mask input to one of the nodes I'm working on. I have defined, and 
> am using it successfully, but I would very much like the UI for the node to 
> work like the Grade node. I.e., to have the mask arrow initially appear as a 
> small, embedded solid triangle on the right (or, for me, the left) side of 
> the node, normally mostly hidden, until the user pulls it out.
> 
> How do you specify that in the NDK. I can't find a method or property that 
> woudl permit it.
> 
> Steve
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