I'm attempting to write a wrapper so that my C# application can use a DLL written in C. Here is a method defintion that i'm trying to wrap:

void methodA(const uint32_t *data); //c header declaration

The issue I'm having is trying to figure out how to give a equivalent pointer from c#. In c# I want it to operate on a:

 UInt32 data[]  //my c# object i want to be able to pass in

but how do I give an equivalent pointer in my wrapper? I have tried

ref data //my attempt at giving an equivalent pointer to the DLL

but that doesnt seem to be working. Using debug statements in the DLL I can see that the values it gets that way are not what I'm attempting to pass in.

So my question boils down to have do I properly wrap a c fuction that is using a pointer to reference an array?