Handles launching an application in a graphical context.
It is an implementation of GAppLaunchContext that provides startup notification and allows to launch applications on a specific workspace.
## Launching an application
context = gdk_display_get_app_launch_context (display);
gdk_app_launch_context_set_timestamp (gdk_event_get_time (event));
if (!g_app_info_launch_default_for_uri ("http://www.gtk.org", context,
&error)) g_warning ("Launching failed: %s\n", error->message);
g_object_unref (context); ```
Display_Property : constant Glib.Properties.Property_Boxed;
Type: Display The display that the GdkAppLaunchContext is on.
type Gdk_App_Launch_Context is access all Gdk_App_Launch_Context_Record'Class;
type Gdk_App_Launch_Context_Record is new Gapp_Launch_Context_Record with null record;
function Get_Display
(Self : not null access Gdk_App_Launch_Context_Record)
return Gdk.Gdk_Display
Gets the GdkDisplay that Context is for.
the display of Context. Has transfer-ownership='none'.
function Get_Type return Glib.GType
procedure Set_Desktop
(Self : not null access Gdk_App_Launch_Context_Record;
Desktop : Glib.Gint)
Sets the workspace on which applications will be launched. This only works when running under a window manager that supports multiple workspaces, as described in the Extended Window Manager Hints. Specifically this sets the _NET_WM_DESKTOP property described in that spec. This only works when using the X11 backend. When the workspace is not specified or Desktop is set to -1, it is up to the window manager to pick one, typically it will be the current workspace.
the number of a workspace, or -1
procedure Set_Icon
(Self : not null access Gdk_App_Launch_Context_Record;
Icon : Glib.G_Icon.G_Icon)
Sets the icon for applications that are launched with this context. Window Managers can use this information when displaying startup notification. See also [methodGdk.AppLaunchContext.set_icon_name].
a GIcon
procedure Set_Icon_Name
(Self : not null access Gdk_App_Launch_Context_Record;
Icon_Name : UTF8_String := "")
Sets the icon for applications that are launched with this context. The Icon_Name will be interpreted in the same way as the Icon field in desktop files. See also [methodGdk.AppLaunchContext.set_icon]. If both Icon and Icon_Name are set, the Icon_Name takes priority. If neither Icon or Icon_Name is set, the icon is taken from either the file that is passed to launched application or from the GAppInfo for the launched application itself.
an icon name
procedure Set_Timestamp
(Self : not null access Gdk_App_Launch_Context_Record;
Timestamp : Guint32)
Sets the timestamp of Context. The timestamp should ideally be taken from the event that triggered the launch. Window managers can use this information to avoid moving the focus to the newly launched application when the user is busy typing in another window. This is also known as 'focus stealing prevention'.
a timestamp