Reading Messages in a Queue

Reading messages in a queue is a two-function operation if the application only reads the first message in the queue and is a three-function operation if the application needs to navigate through the queue. To read the first message in the queue, the application must call MQOpenQueue and MQReceiveMessage. However, to read messages that are not at the front of the queue, the application must call MQOpenQueue, MQCreateCursor, and then MQReceiveMessage.

For examples, see:

When reading messages in a queue, MSMQ can peek at the messages or retrieve them.

When reading messages, the application can retrieve all the message properties that are provided by MSMQ. It is the application's responsibility to specify which message properties it wants to read (this includes the body of the message).

Message properties include:

PROPID_M_ACKNOWLEDGE

PROPID_M_ADMIN_QUEUE

PROPID_M_ADMIN_QUEUE_LEN

PROPID_M_APPSPECIFIC

PROPID_M_ARRIVEDTIME

PROPID_M_AUTH_LEVEL

PROPID_M_AUTHENTICATED