static bool wxGIFHandler_WriteByte(wxOutputStream *, wxUint8);
static bool wxGIFHandler_WriteWord(wxOutputStream *, wxUint16);
static bool wxGIFHandler_WriteHeader(wxOutputStream *, int width, int height,
static bool wxGIFHandler_WriteByte(wxOutputStream *, wxUint8);
static bool wxGIFHandler_WriteWord(wxOutputStream *, wxUint16);
static bool wxGIFHandler_WriteHeader(wxOutputStream *, int width, int height,