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The GDI library provides the priority-queue data type that is used with
device-specific fonts to sort output strings into the correct order on the
page. Priority queues are accessed through a two-byte value, known as the
key. Each key can also have two bytes of associates information, called a
tag.
 
The following lists the priority-queue functions, and provides a brief
description of each.
 
Function   Description
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CreatePQ   Creates a priority queue.
 
DeletePQ   Deletes a priority queue.
 
InsertPQ   Inserts a key in a priority queue.
 
MinPQ      Returns the tag having the smallest key in the queue.
 
SizePQ     Sets the size of the priority queue.
 
ExtractPQ  Extracts a key from a priority queue.
 
 
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