namedWindow function
creates a new named OpenCV window
For further details, please see: http://docs.opencv.org/master/d7/dfc/group__highgui.html#ga5afdf8410934fd099df85c75b2e0888b
Implementation
void namedWindow(String winName, [int flags = 0]) {
final cname = winName.toNativeUtf8().cast<ffi.Char>();
cvRun(() => chighgui.cv_namedWindow(cname, flags));
calloc.free(cname);
}