This is a filter plugin for OpenTabletDriver, allowing 1 program at a time to directly read the state of the tablet. When in use, the active OpenTabletDriver output mode is disabled.
It is primarily intended for use with OpenKneeboard, but OpenKneeboard is not required.
Currently released versions are only usable on Windows. master is also usable on macOS and Linux, though is a work in progress.
For more information, see the project website.
OpenKneeboard OTD-IPC is licensed under the MIT license; however, note that the plugin uses interfaces defined in OpenTabletDriver itself, which are licensed under their own terms, which may apply to the compiled plugin as-distributed.