request (ULONG) - input

A value to be passed with the queue element.

It is used by an application to code an event. The data is understood by the thread that is adding the element to the queue, as well as by the thread that receives the queue element. There is no special meaning to this data, and the operating system does not alter it.

This value is the same as the data in pRequest field of DosPeekQueue operation for examining a queue element.