Thread: Question about efficiency... structures and stuff

Alright, I have the following code:

Code:

class winStrct_T {
public:
	struct BLACK_t {
		int r;
		int g;
		int b;
	} BLACK;
	struct WHITE_t {
		int r;
		int g;
		int b;
	} WHITE;
	struct GREEN_t {
		int r;
		int g;
		int b;
	} GREEN;
	struct BLUE_t {
		int r;
		int g;
		int b;
	} BLUE;
	void set_colours(void);
protected:
	int tmpVar;		
} winStrct;

and it works, but I'm wondering if there is a more efficient way to do this? I don't know too much about unions, or structure pointers, however I feel that there's probably a way to improve this code...