Using the DirectShow Base Classes

To use the base classes in Microsoft® DirectShow®, you must build and link the base class library, located in the following directory:

(SDK root)\Samples\C++\DirectShow\BaseClasses

The project workspace for the base classes is named BaseClasses.dsw. The project builds two versions of the library—a retail version, Strmbase.lib, and a debug version, Strmbasd.lib. In your own project, include the header file Streams.h. Link your project either to Strmbase.lib or to Strmbasd.lib, depending on whether you are making a retail build or a debug build.

The table that follows summarizes the files you need.

For more information on setting up your build environment, see Setting Up the Build Environment.

Preprocessor Symbols

When you include the header file Streams.h, the following preprocessor symbols have special meaning:

• PERF: Reserved. Do not use this preprocessor symbol.
• VFWROBUST: Enables pointer validation in retail. For more information, see Pointer Validation Macros. In debug builds, it is not necessary to define VFWROBUST.