### Overlay Surfaces

This section contains information about DirectDraw overlay surface support. The following topics are discussed:

- Overlay Surface Overview
- Significant DDCAPS Members and Flags
- Source and Destination Rectangles
- Boundary and Size Alignment
- Minimum and Maximum Stretch Factors
- Overlay Color Keys
- Positioning Overlay Surfaces
- Creating Overlay Surfaces
- Overlay Z-Orders
- Flipping Overlay Surfaces

For information about implementing overlay surfaces, see Tutorial 6: Using Overlay Surfaces.