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Solaris X Window System Developer's Guide |
1. Introduction to the Solaris X Server
2. DPS Features and Enhancements
3. Visuals on the Solaris X Server
What are Transparent Overlay Windows?
Basic Characteristics of Transparent Overlay Windows
More on Transparent Overlay Characteristics
Choosing Visuals for Overlay/Underlay Windows
Overview of the Solaris Transparent Overlay Window API
Creating Transparent Overlay Windows
Setting the Paint Type of a Graphics Context
Setting the Background State of a Transparent Overlay Window
Rendering to a Transparent Overlay Window
Querying the Characteristics of a Transparent Overlay Window
Determining Whether a Window is an Overlay Window
Determining the Paint Type of a Graphics Context
Filling an Area Using the Source Area Paint Type
Copying an Area and Its Paint Type
Retrieving Overlay Color Information
Using Existing Xlib Pixel Transfer Routines
Designing an Application for Portability
Selecting a Visual for an Overlay/Underlay Window
This chapter presents information on the Transparent Overlay Extension application programming interface (API) that provides transparent overlay window capabilities in the Solaris OpenWindows environment. The chapter includes information on the following topics:
How overlay windows differ from standard X windows
How to create and draw to overlay windows
How to ensure that applications using transparent overlay windows are portable to a wide range of devices
Note - It is recommended that you use server overlays if supported by your hardware. Server overlays are supported on FFB devices. For more information about server overlays, see Chapter 5, Server Overlay Windows.
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