How to get keyboard and mouse input

[ahaoboy]

same as #13520

I noticed that in the js script, it seems to use define-section to obtain input, but this command is marked as deprecated. I would like to know if there are other ways to capture user keyboard and mouse input.

I tried to emulate the execution logic of JavaScript in a C plugin, but I did not receive the MPV_EVENT_CLIENT_MESSAGE event. I'm not sure if I've missed something, and I hope someone can point out any mistakes or provide other useful information.

#include <mpv/client.h>
#include <stdio.h>

MPV_EXPORT
int mpv_open_cplugin(mpv_handle *handle)
{
  printf("Hello world from C plugin '%s'!\n", mpv_client_name(handle));
  mpv_command(handle, (const char *[]){"define-section", "mpv_input_js",
                                       "a\n", "default", NULL});
  mpv_command(handle, (const char *[]){"enable-section", "mpv_input_js",
                                       "allow-hide-cursor+allow-vo-dragging", NULL});
  while (1)
  {
    mpv_event *event = mpv_wait_event(handle, -1);
    printf("Got event: %d\n", event->event_id);
    if (event->event_id == MPV_EVENT_SHUTDOWN)
      break;

    if (event->event_id == MPV_EVENT_CLIENT_MESSAGE)
    {
      printf("key event: %d\n", event->event_id);
    }
  }
  return 0;
}