| Maintainer | gtk2hs-users@lists.sourceforge.net |
|---|---|
| Stability | provisional |
| Portability | portable (depends on GHC) |
| Safe Haskell | None |
| Language | Haskell98 |
Graphics.UI.Gtk.Gdk.DisplayManager
Description
Maintains a list of all open GdkDisplays
- Module available since Gdk version 2.2
- data DisplayManager
- class GObjectClass o => DisplayManagerClass o
- castToDisplayManager :: GObjectClass obj => obj -> DisplayManager
- toDisplayManager :: DisplayManagerClass o => o -> DisplayManager
- displayManagerGet :: IO DisplayManager
- displayManagerListDisplays :: DisplayManagerClass self => self -> IO [Display]
- displayManagerDefaultDisplay :: DisplayManagerClass self => Attr self Display
- displayManagerOpened :: DisplayManagerClass self => Signal self (Display -> IO ())
Detail
The purpose of the DisplayManager singleton object is to offer
notification when displays appear or disappear or the default display
changes.
Class Hierarchy
| GObject
| +----DisplayManager
Types
data DisplayManager Source
class GObjectClass o => DisplayManagerClass o Source
Instances
castToDisplayManager :: GObjectClass obj => obj -> DisplayManager Source
toDisplayManager :: DisplayManagerClass o => o -> DisplayManager Source
Methods
Arguments
| :: IO DisplayManager | returns the singleton |
Returns the global DisplayManager singleton; parsePargs, init, or
initCheck must have been called first.
displayManagerListDisplays Source
Arguments
| :: DisplayManagerClass self | |
| => self | |
| -> IO [Display] | returns a newly allocated list of |
List all currently open displays.
Attributes
displayManagerDefaultDisplay :: DisplayManagerClass self => Attr self Display Source
The default display.
Signals
displayManagerOpened :: DisplayManagerClass self => Signal self (Display -> IO ()) Source
The displayManagerOpened signal is emitted when a display is opened.