Get either the layout of the widget or the this-pointer

LZ4_putPosition*() : only used in byPtr mode */

QML does not handle 64bit integers, so use string instead, we only need the value for comparison, we can convert back to quintptr in C++

! * Checks if it is dangerous to unpack a QVariant because it stores an invalid pointer. * Returns true if the value is an invalid pointer to a QObj

! * Checks if the given pointer should be considered a nullptr. * One would assume this to be trivial, but there are some interesting hacks * in fo