func main() {
	// Initialize GTK without parsing any command line arguments.
	gtk.Init(nil)

	// Create a new toplevel window, set its title, and connect it to the
	// "destroy" signal to exit the GTK main loop when it is destroyed.
	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.SetTitle("Simple Example")
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	// Create a new socket:
	s, err := gtkx.SocketNew()
	if err != nil {
		log.Fatal("Unable to create socket:", err)
	}

	//Adding the socket to the window:
	win.Add(s)

	// Getting the socketId:
	sId := s.GetId()
	fmt.Printf("Our socket: %v\n", sId)

	//Building a Plug for our Socket:
	p, err := gtkx.PlugNew(sId)
	if err != nil {
		log.Fatal("Unable to create plug:", err)
	}

	//Building a Button for our Plug:
	b, err := gtk.ButtonNewWithLabel("Click me .)")
	if err != nil {
		log.Fatal("Unable to create button:", err)
	}

	//Click events for the Button:
	b.Connect("clicked", func() {
		fmt.Printf("Yeah, such clicks!\n")
	})

	//Adding the Button to the Plug:
	p.Add(b)
	//Displaying the Plug:
	p.ShowAll()

	// Set the default window size.
	win.SetDefaultSize(800, 600)

	// Recursively show all widgets contained in this window.
	win.ShowAll()

	// Begin executing the GTK main loop.  This blocks until
	// gtk.MainQuit() is run.
	gtk.Main()
}

func (ui *Ui) init() {
	win, _ := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	win.SetTitle("GNOMEConnect")
	win.SetDefaultSize(800, 600)
	win.Connect("destroy", func() {
		gtk.MainQuit()
		ui.Quit <- true
	})
	ui.win = win

	hbox, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
	win.Add(hbox)

	scroller := ui.initDevicesList()
	hbox.PackStart(scroller, false, true, 0)

	sep, _ := gtk.SeparatorNew(gtk.ORIENTATION_HORIZONTAL)
	hbox.PackStart(sep, false, true, 0)

	box := ui.initDeviceView()
	hbox.PackEnd(box, true, true, 0)

	titlebar := ui.initTitlebar()
	win.SetTitlebar(titlebar)

	win.ShowAll()
	ui.selectDevice(nil)
}

func main() {
	// Initialize GTK without parsing any command line arguments.
	gtk.Init(nil)

	// Create a new toplevel window, set its title, and connect it to the
	// "destroy" signal to exit the GTK main loop when it is destroyed.
	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.SetTitle("Simple Example")
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	// Create a new label widget to show in the window.
	l, err := gtk.LabelNew("Hello, gotk3!")
	if err != nil {
		log.Fatal("Unable to create label:", err)
	}

	// Add the label to the window.
	win.Add(l)

	// Set the default window size.
	win.SetDefaultSize(800, 600)

	// Recursively show all widgets contained in this window.
	win.ShowAll()

	// Begin executing the GTK main loop.  This blocks until
	// gtk.MainQuit() is run.
	gtk.Main()
}

// Setup the Window.
func setupWindow() *gtk.Window {
	w, _ := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	w.Connect("destroy", gtk.MainQuit)
	w.SetDefaultSize(500, 300)
	w.SetPosition(gtk.WIN_POS_CENTER)
	w.SetTitle("TextView properties example")

	return w
}

func RunErrorMessage(format string, args ...interface{}) error {
	dummy, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		return err
	}
	dialog := gtk.MessageDialogNew(dummy, gtk.DIALOG_MODAL, gtk.MESSAGE_ERROR, gtk.BUTTONS_OK, fmt.Sprint("ERROR: ", format), args...)
	dialog.Run()
	dialog.Destroy()
	return nil
}

func main() {
	/*
	   We set an environment variable so that we don't get bothered by xterm accessibility warnings
	   like "** (xterm:16917): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-QznzMfGEXB: Connection refused"
	   See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15154
	*/
	os.Setenv("NO_AT_BRIDGE", "1")

	// Initialize GTK without parsing any command line arguments.
	gtk.Init(nil)

	// Create a new toplevel window, set its title, and connect it to the
	// "destroy" signal to exit the GTK main loop when it is destroyed.
	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.SetTitle("Simple Example")
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	// Create a new socket:
	s, err := gtkx.SocketNew()
	if err != nil {
		log.Fatal("Unable to create socket:", err)
	}

	//Adding the socket to the window:
	win.Add(s)

	// Getting the socketId:
	sId := s.GetId()
	fmt.Printf("Our socket: %v\n", sId)

	// Embedding something in the socket:
	xterm := exec.Command("xterm", "-into", gtkx.WindowIdToString(sId))

	go func() {
		xterm.Run()
	}()

	// Set the default window size.
	win.SetDefaultSize(800, 600)

	// Recursively show all widgets contained in this window.
	win.ShowAll()

	// Begin executing the GTK main loop.  This blocks until
	// gtk.MainQuit() is run.
	gtk.Main()
}

func setup_window(title string) *gtk.Window {
	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.SetTitle(title)
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})
	win.SetDefaultSize(800, 600)
	win.SetPosition(gtk.WIN_POS_CENTER)
	return win
}

func main() {
	gtk.Init(nil)

	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	win.Add(windowWidget())

	// Native GTK is not thread safe, and thus, gotk3's GTK bindings may not
	// be used from other goroutines.  Instead, glib.IdleAdd() must be used
	// to add a function to run in the GTK main loop when it is in an idle
	// state.
	//
	// Two examples of using glib.IdleAdd() are shown below.  The first runs
	// a user created function, LabelSetTextIdle, and passes it two
	// arguments for a label and the text to set it with.  The second calls
	// (*gtk.Label).SetText directly, passing in only the text as an
	// argument.
	//
	// If the function passed to glib.IdleAdd() returns one argument, and
	// that argument is a bool, this return value will be used in the same
	// manner as a native g_idle_add() call.  If this return value is false,
	// the function will be removed from executing in the GTK main loop's
	// idle state.  If the return value is true, the function will continue
	// to execute when the GTK main loop is in this state.
	go func() {
		for {
			time.Sleep(time.Second)
			s := fmt.Sprintf("Set a label %d time(s)!", nSets)
			_, err := glib.IdleAdd(LabelSetTextIdle, topLabel, s)
			if err != nil {
				log.Fatal("IdleAdd() failed:", err)
			}
			nSets++
			s = fmt.Sprintf("Set a label %d time(s)!", nSets)
			_, err = glib.IdleAdd(bottomLabel.SetText, s)
			if err != nil {
				log.Fatal("IdleAdd() failed:", err)
			}
			nSets++
		}
	}()

	win.ShowAll()
	gtk.Main()
}

func main() {
	gtk.Init(nil)

	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	win.Add(windowWidget())
	win.ShowAll()

	gtk.Main()
}

// RunGUI initializes GTK, creates the toplevel window and all child widgets,
// opens the pages for the default session, and runs the Glib main event loop.
// This function blocks until the toplevel window is destroyed and the event
// loop exits.
func RunGUI() {
	gtk.Init(nil)

	window, _ := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	window.Connect("destroy", func() {
		gtk.MainQuit()
	})
	window.SetDefaultGeometry(defaultWinWidth, defaultWinHeight)
	window.Show()

	wc := wk2.DefaultWebContext()
	wc.SetProcessModel(wk2.ProcessModelMultipleSecondaryProcesses)

	session := []PageDescription{HomePage}
	pm := NewPageManager(session)
	window.Add(pm)
	pm.Show()

	gtk.Main()
}

func main() {
	gtk.Init(nil)

	// gui boilerplate
	win, _ := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	da, _ := gtk.DrawingAreaNew()
	win.Add(da)
	win.SetTitle("Arrow keys")
	win.Connect("destroy", gtk.MainQuit)
	win.ShowAll()

	// Data
	unitSize := 20.0
	x := 0.0
	y := 0.0
	keyMap := map[uint]func(){
		KEY_LEFT:  func() { x-- },
		KEY_UP:    func() { y-- },
		KEY_RIGHT: func() { x++ },
		KEY_DOWN:  func() { y++ },
	}

	// Event handlers
	da.Connect("draw", func(da *gtk.DrawingArea, cr *cairo.Context) {
		cr.SetSourceRGB(0, 0, 0)
		cr.Rectangle(x*unitSize, y*unitSize, unitSize, unitSize)
		cr.Fill()
	})
	win.Connect("key-press-event", func(win *gtk.Window, ev *gdk.Event) {
		keyEvent := &gdk.EventKey{ev}
		if move, found := keyMap[keyEvent.KeyVal()]; found {
			move()
			win.QueueDraw()
		}
	})

	gtk.Main()
}

// Displays image in a new Gtk window
// This function blocks until the window is closed
func displayImage(img image.Image) error {
	// Copy img into a new gdk.Pixbuf
	pixbuf, err := imageToPixbuf(img)
	if err != nil {
		return errors.New("Failed to create a pixbuf for image")
	}
	// Initialize GtkWindow
	gtk.Init(nil)
	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		return errors.New("Failed to create new window")
	}
	win.Connect("destroy", func() { gtk.MainQuit() })
	// Create GtkImage widget from pixbuf
	gimg, err := gtk.ImageNewFromPixbuf(pixbuf)
	if err != nil {
		return errors.New("Failed to load image into window")
	}
	win.Add(gimg)
	win.ShowAll()
	gtk.Main()
	return nil
}

func main() {
	gtk.Init(nil)

	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.SetTitle("UDP client v0.0.1")
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	var c client.Client
	answers := make(chan string)

	grid, err := gtk.GridNew()
	if err != nil {
		log.Fatal("Unable to create grid:", err)
	}

	messageHistory, err := gtk.TextViewNew()
	if err != nil {
		log.Fatal("Unable to create TextView:", err)
	}
	grid.Attach(messageHistory, 0, 0, 4, 1)

	messageEntry, err := gtk.EntryNew()
	if err != nil {
		log.Fatal("Unable to create entry:", err)
	}
	grid.Attach(messageEntry, 0, 1, 1, 1)

	privateEntry, err := gtk.EntryNew()
	if err != nil {
		log.Fatal("Unable to create entry:", err)
	}
	grid.Attach(privateEntry, 1, 1, 1, 1)

	sendButton, err := gtk.ButtonNewWithLabel("Send")
	if err != nil {
		log.Fatal("Unable to create button:", err)
	}
	sendButton.Connect("clicked", func(btn *gtk.Button) {
		lbl, _ := btn.GetLabel()
		if lbl != "Send" {
			return
		}
		log.Print(lbl)
		msg, _ := messageEntry.GetText()
		log.Print(msg)
		c.Message(msg)
	})
	grid.Attach(sendButton, 0, 2, 1, 1)

	privateButton, err := gtk.ButtonNewWithLabel("Private")
	if err != nil {
		log.Fatal("Unable to create button:", err)
	}
	privateButton.Connect("clicked", func(btn *gtk.Button) {
		lbl, _ := btn.GetLabel()
		if lbl != "Private" {
			return
		}
		log.Print(lbl)
		private, _ := privateEntry.GetText()
		log.Print(private)
		if private != "" {
			msg, _ := messageEntry.GetText()
			log.Print(msg)
			c.Private(private, msg)
		}
	})
	grid.Attach(privateButton, 1, 2, 1, 1)

	listButton, err := gtk.ButtonNewWithLabel("List")
	if err != nil {
		log.Fatal("Unable to create button:", err)
	}
	listButton.Connect("clicked", func(btn *gtk.Button) {
		lbl, _ := btn.GetLabel()
		if lbl != "List" {
			return
		}
		log.Print(lbl)
		c.List()
		log.Print(lbl)
	})
	grid.Attach(listButton, 2, 1, 1, 1)

	leaveButton, err := gtk.ButtonNewWithLabel("Leave")
	if err != nil {
		log.Fatal("Unable to create button:", err)
	}
	leaveButton.Connect("clicked", func(btn *gtk.Button) {
		lbl, _ := btn.GetLabel()
		if lbl != "Leave" {
			return
		}
		log.Print(lbl)
		c.Leave()
//.........这里部分代码省略.........

func main() {
	gtk.Init(nil)

	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.SetTitle("Grid Example")
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	// Create a new grid widget to arrange child widgets
	grid, err := gtk.GridNew()
	if err != nil {
		log.Fatal("Unable to create grid:", err)
	}

	// gtk.Grid embeds an Orientable struct to simulate the GtkOrientable
	// GInterface.  Set the orientation from the default horizontal to
	// vertical.
	grid.SetOrientation(gtk.ORIENTATION_VERTICAL)

	// Create some widgets to put in the grid.
	lab, err := gtk.LabelNew("Just a label")
	if err != nil {
		log.Fatal("Unable to create label:", err)
	}

	btn, err := gtk.ButtonNewWithLabel("Button with label")
	if err != nil {
		log.Fatal("Unable to create button:", err)
	}

	entry, err := gtk.EntryNew()
	if err != nil {
		log.Fatal("Unable to create entry:", err)
	}

	spnBtn, err := gtk.SpinButtonNewWithRange(0.0, 1.0, 0.001)
	if err != nil {
		log.Fatal("Unable to create spin button:", err)
	}

	nb, err := gtk.NotebookNew()
	if err != nil {
		log.Fatal("Unable to create notebook:", err)
	}

	// Calling (*gtk.Container).Add() with a gtk.Grid will add widgets next
	// to each other, in the order they were added, to the right side of the
	// last added widget when the grid is in a horizontal orientation, and
	// at the bottom of the last added widget if the grid is in a vertial
	// orientation.  Using a grid in this manner works similar to a gtk.Box,
	// but unlike gtk.Box, a gtk.Grid will respect its child widget's expand
	// and margin properties.
	grid.Add(btn)
	grid.Add(lab)
	grid.Add(entry)
	grid.Add(spnBtn)

	// Widgets may also be added by calling (*gtk.Grid).Attach() to specify
	// where to place the widget in the grid, and optionally how many rows
	// and columns to span over.
	//
	// Additional rows and columns are automatically added to the grid as
	// necessary when new widgets are added with (*gtk.Container).Add(), or,
	// as shown in this case, using (*gtk.Grid).Attach().
	//
	// In this case, a notebook is added beside the widgets inserted above.
	// The notebook widget is inserted with a left position of 1, a top
	// position of 1 (starting at the same vertical position as the button),
	// a width of 1 column, and a height of 2 rows (spanning down to the
	// same vertical position as the entry).
	//
	// This example also demonstrates how not every area of the grid must
	// contain a widget.  In particular, the area to the right of the label
	// and the right of spin button have contain no widgets.
	grid.Attach(nb, 1, 1, 1, 2)
	nb.SetHExpand(true)
	nb.SetVExpand(true)

	// Add a child widget and tab label to the notebook so it renders.
	nbChild, err := gtk.LabelNew("Notebook content")
	if err != nil {
		log.Fatal("Unable to create button:", err)
	}
	nbTab, err := gtk.LabelNew("Tab label")
	if err != nil {
		log.Fatal("Unable to create label:", err)
	}
	nb.AppendPage(nbChild, nbTab)

	// Add the grid to the window, and show all widgets.
	win.Add(grid)
	win.ShowAll()

	gtk.Main()
}

// CreateWindow creates the toplevel window for the GUI.
func CreateWindow() (*gtk.Window, error) {
	var err error
	mainWindow, err = gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		return nil, err
	}
	mainWindow.SetTitle("btcgui")
	mainWindow.Connect("destroy", func() {
		gtk.MainQuit()
	})

	grid, err := gtk.GridNew()
	if err != nil {
		return nil, err
	}
	grid.SetOrientation(gtk.ORIENTATION_VERTICAL)

	grid.Add(createMenuBar())

	notebook, err := gtk.NotebookNew()
	if err != nil {
		return nil, err
	}
	notebook.SetHExpand(true)
	notebook.SetVExpand(true)
	grid.Add(notebook)

	l, err := gtk.LabelNew("Overview")
	if err != nil {
		return nil, err
	}
	notebook.AppendPage(createOverview(), l)

	l, err = gtk.LabelNew("Send Coins")
	if err != nil {
		return nil, err
	}
	notebook.AppendPage(createSendCoins(), l)

	l, err = gtk.LabelNew("Receive Coins")
	if err != nil {
		return nil, err
	}
	notebook.AppendPage(createRecvCoins(), l)

	l, err = gtk.LabelNew("Transactions")
	if err != nil {
		log.Fatal(err)
	}
	notebook.AppendPage(createTransactions(), l)

	// TODO(jrick): Add back when address book is implemented.
	/*
		l, err = gtk.LabelNew("Address Book")
		if err != nil {
			log.Fatal(err)
		}
		notebook.AppendPage(createAddrBook(), l)
	*/

	grid.Add(createStatusbar())

	mainWindow.Add(grid)

	mainWindow.SetDefaultGeometry(800, 600)

	return mainWindow, nil
}