How to pass a C struct?

[L-28C <kixdemp@...>]

Hello everyone!

I have this:

--------------------
struct Sprite
{
	BITMAP *sheet, *img;
	int pos, xdir, ydir, anim, walking,
		x, y, sheetX, sheetY;
};

struct Sprite *loadSprite(const char*);
--------------------

How would I pass the Sprite struct over to Lua so that it can call 
loadSprite?

I can't have all of my sprites hardcoded on C because, well, there are many.

Thanks in advance, everyone!