Mine

class wxMyPanel : wxPanel
{
	public:
		wxMyPanel(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style);

	protected:
		void onPaint(wxPaintEvent &event);
		void onSize(wxSizeEvent &event);

	private:
		void draw(unsigned char *data, int width, int height);
};