The information in this section pertains only to applications written in C and C++. See DirectDraw Visual Basic Tutorials.

After creating your overlay surface, you can display it. Often, display hardware imposes alignment restrictions on the position and pixel width of the rectangles you use to display the overlay. Additionally, you will often need to account for a minimum required stretch factor by adjusting the width of the destination rectangle in order to successfully display the overlay surface. The Mosquito sample performs the following tasks to prepare and display the overlay surface.

• Step 4.1: Determine the Minimum Display Requirements
• Step 4.2: Set Up the Source and Destination Rectangles
• Step 4.3: Display the Overlay Surface

Next: Step 4.1: Determine the Minimum Display Requirements