struct Gio::AppLaunchContext::LaunchStartedSignal

Overview

The [signal@Gio.AppLaunchContext::launch-started] signal is emitted when a Gio::AppInfo is about to be launched. If non-null the platform_data is an GVariant dictionary mapping strings to variants (ie a{sv}), which contains additional, platform-specific data about this launch. On UNIX, at least the startup-notification-id keys will be present.

The value of the startup-notification-id key (type s) is a startup notification ID corresponding to the format from the startup-notification specification. It allows tracking the progress of the launchee through startup.

It is guaranteed that this signal is followed by either a Gio::AppLaunchContext::#launched or [signal@Gio.AppLaunchContext::launch-failed] signal.

Because a launch operation may involve spawning multiple instances of the target application, you should expect this signal to be emitted multiple times, one for each spawned instance.

Defined in:

lib/gi-crystal/src/auto/gio-2.0/app_launch_context.cr

Instance Method Summary

Instance methods inherited from struct GObject::Signal

[](detail : String) : self [], name : String name

Constructor methods inherited from struct GObject::Signal

new(source : GObject::Object, detail : Nil | String = nil) new

Instance Method Detail

def connect(*, after : Bool = false, &block : Proc(Gio::AppInfo, GLib::Variant | Nil, Nil)) : GObject::SignalConnection #

def connect(handler : Proc(Gio::AppInfo, GLib::Variant | Nil, Nil), *, after : Bool = false) : GObject::SignalConnection #

def connect(handler : Proc(Gio::AppLaunchContext, Gio::AppInfo, GLib::Variant | Nil, Nil), *, after : Bool = false) : GObject::SignalConnection #

def emit(info : Gio::AppInfo, platform_data : _ | Nil) : Nil #

def name : String #
Description copied from struct GObject::Signal

The signal name