Message Q error

working on message Q with a parent and child process and the Q is not being created, getting an Error # 38 on it.  This is the program:

#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/msg.h>
#include <sys/ipc.h>
#include <errno.h>


struct myMessage
      {
            long int message_type;
            char some_text[3];
      };
      
int main()
{
      int messageQ;
      pid_t processNum= fork();            
      
      // create messageQ
      
      if(processNum==0)
      {   printf("child: create and send messQ, process=0 ");
            messageQ=getmsg((key_t)1234, 0666|IPC_CREAT);
            fprintf(stderr,"messageerror: %d\n",errno);
            printf("creatQ = %d ",messageQ);
            //create message
      
            struct myMessage message;
            message.message_type=0;
            message.some_text[0]='1';
            message.some_text[1]='2';
            message.some_text[2]='3';
      
            //send message
            msgsnd(messageQ,(void *)&message,3,0);
            printf("MSG sent ");
            printf("sentQ = %d ",messageQ);
      
      }
      
      if(processNum!=0)
      {      printf("Waiting ");
            printf("%d ",processNum);
            wait(10);
      }

      
      
      // create struct pointer to return results into
      int success = 0;
      if(processNum!=0)
      {      struct myMessage recievedMsg;
            success=msgrcv(messageQ, (void *)&recievedMsg,3, 0 ,0);
            printf("recQ = %d ",messageQ);
              printf("success: %d",success);

      }
      

      
      return 0;
      
}