Horse Screen Open

Play 0x29, server → client.

play · 0x29 · clientbound (server → client)

Opens the inventory screen for a horse, donkey, llama, or similar entity with entityId, using window windowId and nbSlots inventory columns. The server sends it when the player sneak-interacts with the animal. The client shows the mount inventory screen and later ContainerSetContent fills the slots.

Sent by the server, read by the client. Listen for it with client.on("HorseScreenOpen", (data) => …) on the receiving side.

Fields

Send it

await client.sendPacket("HorseScreenOpen", {
  windowId: /* ContainerID */,
  nbSlots: /* VarInt */,
  entityId: /* Int */,
});

Field aliases listed under Notes are accepted as alternative keys when writing.

Source: src/Core/Versions/776/Packets/play/clientbound/HorseScreenOpen.ts