Video Compression Manager Drivers

Video compression drivers provide low-level compression, decompression, and rendering services. The algorithms used by these drivers can be hardware- or software-based. These drivers are used for the following services:

• Compressing and decompressing data

• Rendering compressed data to the display

• Handling text and custom data.

The following topics describe the interface for these drivers:

• Writing video compression, decompression, and rendering drivers

• How a driver handles the system messages for the installable-driver interface

• How a driver handles messages specific to compressing, decompressing, and rendering data

• Alphabetic reference to the messages and data structures used to write compression, decompression, and rendering drivers.