WndProc in wrapped class problem

[sciguyryan]

I have wrapped up a window in a class, but WndProc has to be a static function of the class. But what if I want to make use of a variable from that class in the function.

Example. I have a member varaible called hInst. It is the HINSTANCE you get when you start a win application. but since WndProc is static I can't use normal member variables. So I thought I had to make the member variable static too. But that didn't help (Well it is probably my fault, because I am pretty sure it whould work. Here is a snapshot of the code. I guess I am messing up the function definition or something? Or any other advice?

.h file

class Device{


public:
	Device();
	~Device();


private:
	static LRESULT WndProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam );
	static HINSTANCE hInst;	    					// Hinstance to our window

};

.c file

LRESULT CALLBACK Device::WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){

	static 	PAINTSTRUCT	paintstruct;

	switch (message){

		//This is sent following WM_NCCREATE -- we can assume our window is up
		//If it gets this far
		case WM_CREATE:{
			CreateWndControls(hwnd, hInst);
			FillControls();
			break;
		}

Cheers,

RyanJ
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