The Be Book - System Overview - The Interface Kit
A BScreen
object represents a single display screen that's connected to
the computer. With a
BScreen object you can…
Get and set the screen's size and pixel depth.
Get the screen's color map.
Make a screen shot.
Set the desktop color.
Synchronize your code with the screen's retrace event.
You can't copy a BScreen
object—the copy constructor and assignment
operators are private.
Although, the BeOS currently only supports a single screen, in the future it will let the user hook up multiple screens. One of the screens, the main screen, will have the origin of the screen coordinate system at its left top corner. Other screens will be located elsewhere in the same coordinate system. If there's just one screen, it's the main screen.
A BScreen
object represents one screen. An application can have more than
one object referring to the same screen.
When multiple screens are supported, a screen_id identifier will be
assigned to each one. Currently, B_MAIN_SCREEN_ID is the only identifier.
