Windows Media Player 11 SDK How Properties Work 

How Properties Work

Property values are stored in member variables.

Properties are made accessible by method pairs. One method provides the implementation to specify the property value; its name starts with put_. The other method provides the implementation to retrieve the property value; its name starts with get_. The interface definition is in Echo.idl. The property method prototypes are in Echo.h. They are implemented in Echo.cpp.

The next three sections will show you how to modify the existing property methods to suit your needs and how to add the methods for an additional property.

• Variables to Store Properties
• Modifying the Scale Property
• Adding the Wet Mix Property

See Also

• Echo Sample Properties