Even if realistically it is difficult to make good use of under Windows.
+ Style editor: Use a more explicit form of RadioButton() to avoid being depending on underlying flags type. (#2983)
// (minor and older changes stripped away, please see git history for details)
// 2020-01-17: Inputs: Added support for io.KeySuper (Windows key) for consistency with other backends, even if realistically it is difficult to make good use of under Windows.
// 2020-01-14: Inputs: Added support for #define IMGUI_IMPL_WIN32_DISABLE_GAMEPAD/IMGUI_IMPL_WIN32_DISABLE_LINKING_XINPUT.
// 2019-12-05: Inputs: Added support for ImGuiMouseCursor_NotAllowed mouse cursor.
// 2019-05-11: Inputs: Don't filter value from WM_CHAR before calling AddInputCharacter().