getSize method
Implementation
math.Point<double> getSize() {
var w = calloc<Int32>();
var h = calloc<Int32>();
sdlGetWindowSize(this, w, h);
// 1059
var result = math.Point<double>(w.value.toDouble(), h.value.toDouble());
calloc.free(w);
calloc.free(h);
return result;
}