GtkApplication* gtk_application_new ( const gchar* application_id, GApplicationFlags flags )
Creates a new
GtkApplication, it is not necessary to call
manually. It is called as soon as the application gets registered as
the primary instance.
gtk_init() is called in the default handler for the
GApplication::startup signal. Therefore,
GtkApplication subclasses should
chain up in their
GApplication::startup handler before using any GTK+ API.
Note that commandline arguments are not passed to gtk_init().
All GTK+ functionality that is available via commandline arguments
can also be achieved by setting suitable environment variables
G_DEBUG, so this should not be a big
problem. If you absolutely must support GTK+ commandline arguments,
you can explicitly call
gtk_init() before creating the application instance.
NULL, the application ID must be valid. See g_application_id_is_valid().
If no application ID is given then some features (most notably application uniqueness) will be disabled. A null application ID is only allowed with GTK+ 3.6 or later.
Available since: 3.0
The application ID.
The argument can be
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string.
The application flags.
|The caller of the function takes ownership of the data, and is responsible for freeing it.|