#includeIn this example, we first create a message queue with the `msgget` function and assign it a unique key of 1234. We then define a message structure that contains a message type and a message text. We then receive a message with the `msgrcv` function by specifying the message queue ID, the message structure, the size of the message text, the message type, and the message flag. This code is part of the standard C library and does not require any additional package library.#include #include #include struct message { long mtype; char mtext[100]; }; int main() { int msgid = msgget(1234, 0666|IPC_CREAT); struct message msg; msgrcv(msgid, &msg, sizeof(msg.mtext), 1, 0); std::cout << "Received message: " << msg.mtext << std::endl; return 0; }