Using as400 QRCVDTAQ api to retrieve a message / entry from a dataqueue

Heres an example of using the QRCVDTAQ as400 api to retrieve a message / entry from a as400 dataqueue

C                     CALL 'QRCVDTAQ' 
C                     PARM 'MYQUEUE' DTQ    10 
C                     PARM 'QTEMP'   DTLIB  10 
C                     PARM 100       LENGTH  50 
C                     PARM           DATA 
C                     PARM 0         WAITT   50 
C                     PARM           ORDER   2 
C                     PARM           KLEN    30 
C                     PARM           KEY 
C                     PARM           SNDLEN  30 
C                     PARM           ID 

DTQ as400 Data queue name
DTLIB as400 library name
LENGTH Length of entry received.
zero if no entry received.
DATA Entry received. Must be minimum length indicated by LENGTH at least.
WAITT Time in seconds to wait for an entry.
Zero = no wait.
-ve number = wait until entry received.

(only used if dataqueue keyed, optional)

ORDER Condition operator, EQ, NE, LT, LE, GT or GE.
KEYLEN Key length
KEY Key value. Length indicated by KEYLEN.
SNDLEN Length of SENDER field
SENDER Field to receive sender ID. Usually 44 bytes

Using as400 QRCVDTAQ api to retrieve a message / entry from a dataqueue