Variable Scope for Custom Server Controls

[EADeveloper]

Quick ASP.Net architectural question....

We're creating a set of standard web controls for use in our app, and those custom controls need access to a set of variables that we are initializing at the PAGE level (in the Master page, actually). What's the syntax to access those variables from inside the custom control's render sub? Will we be able to just reference Master.varnm like we can in the page, or is there a different syntax when we're inside the server control?

FYI - There are a number of threads in this forum on variable scope, but I didn't want to attach to them due to age (mostly 2004/5).

Thanks in advance.