In order to make position-based keyboard shortcuts, that work for all keyboard layouts, I need to identify a physical keyboard key, without the keyboard layout on top of it. Ide
You already have the most multiplatform way of doing it. Except that Qt hasn't implemented it for OS X yet, at least as of Qt 5.7.
Feel free to patch your copy of Qt to include a HID event tap to get the scancodes, see e.g. this question.