The native implementation is available, but you shouldn't use it unless you are familiar with the underlying operating system, don't mind depending on it, and know simpledisplay.d's internals too. It is virtually private; you can hopefully do what you need to do with handleNativeEvent instead.

This is likely to eventually change to be just a struct holding platform-specific handles instead of a template mixin at some point because I'm not happy with the code duplication here (ironically).