func (self *Window) bindKeys() {
// navigate
self.freqLimitedFunc(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
file := self.set.Next()
if file != nil {
self.currentFile = file
file.Draw()
}
}).Connect(X, self.Id, "Space", false)
self.freqLimitedFunc(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
file := self.set.Prev()
if file != nil {
self.currentFile = file
file.Draw()
}
}).Connect(X, self.Id, "c", false)
self.freqLimitedFunc(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
file := self.set.Rand()
if file != nil {
self.currentFile = file
file.Draw()
}
}).Connect(X, self.Id, "f", false)
// image operations
self.freqLimitedFunc(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
self.currentFile.ZoomIn()
self.currentFile.Draw()
}).Connect(X, self.Id, "z", false)
self.freqLimitedFunc(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
self.currentFile.ZoomOut()
self.currentFile.Draw()
}).Connect(X, self.Id, "x", false)
keybind.KeyPressFun(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
self.currentFile.Move(0, MOVE_STEP)
self.currentFile.Draw()
}).Connect(X, self.Id, "w", false)
keybind.KeyPressFun(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
self.currentFile.Move(0, -MOVE_STEP)
self.currentFile.Draw()
}).Connect(X, self.Id, "s", false)
keybind.KeyPressFun(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
self.currentFile.Move(MOVE_STEP, 0)
self.currentFile.Draw()
}).Connect(X, self.Id, "a", false)
keybind.KeyPressFun(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
self.currentFile.Move(-MOVE_STEP, 0)
self.currentFile.Draw()
}).Connect(X, self.Id, "d", false)
}
func keyHandlers(X *xgbutil.XUtil,
cycle *prompt.Cycle, items []*prompt.CycleItem) {
geom := headGeom(X)
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
shown := cycle.Show(geom, cycleNext, items)
if !shown {
log.Fatal("Did not show cycle prompt.")
}
cycle.Next()
}).Connect(X, X.RootWin(), cycleNext, true)
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
cycle.Next()
}).Connect(X, cycle.GrabId(), cycleNext, true)
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
shown := cycle.Show(geom, cyclePrev, items)
if !shown {
log.Fatal("Did not show cycle prompt.")
}
cycle.Prev()
}).Connect(X, X.RootWin(), cyclePrev, true)
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
cycle.Prev()
}).Connect(X, cycle.GrabId(), cyclePrev, true)
}
func main() {
X, err := xgbutil.NewConn()
if err != nil {
log.Fatal(err)
}
keybind.Initialize(X) // call once before using keybind package
// Read an example gopher image into a regular png image.
img, _, err := image.Decode(bytes.NewBuffer(gopher.GopherPng()))
if err != nil {
log.Fatal(err)
}
// Now convert it into an X image.
ximg := xgraphics.NewConvert(X, img)
// Now show it in a new window.
// We set the window title and tell the program to quit gracefully when
// the window is closed.
// There is also a convenience method, XShow, that requires no parameters.
win := showImage(ximg, "The Go Gopher!", true)
// Listen for key press events.
win.Listen(xproto.EventMaskKeyPress)
err = keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
println("fullscreen!")
err := ewmh.WmStateReq(X, win.Id, ewmh.StateToggle,
"_NET_WM_STATE_FULLSCREEN")
if err != nil {
log.Fatal(err)
}
}).Connect(X, win.Id, "f", false)
if err != nil {
log.Fatal(err)
}
err = keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
println("quit fullscreen!")
err := ewmh.WmStateReq(X, win.Id, ewmh.StateToggle,
"_NET_WM_STATE_FULLSCREEN")
if err != nil {
log.Fatal(err)
}
}).Connect(X, win.Id, "Escape", false)
if err != nil {
log.Fatal(err)
}
// If we don't block, the program will end and the window will disappear.
// We could use a 'select{}' here, but xevent.Main will emit errors if
// something went wrong, so use that instead.
xevent.Main(X)
}
func (hotkey Hotkey) attach(X *xgbutil.XUtil) {
log.Println(hotkey.Key)
err := keybind.KeyPressFun(
func(X *xgbutil.XUtil, e xevent.KeyPressEvent) {
go exec.Command("/bin/sh", "-c", hotkey.Cmd).Run()
}).Connect(X, X.RootWin(), hotkey.Key, true)
if err != nil {
log.Fatalf("Could not bind %s: %s", hotkey.Key, err.Error())
}
}
// API
func (ct *CommandTray) Bind(key string) {
if ct.mod != "" {
return
}
ct.mod = key
utils.FailMeMaybe(keybind.KeyPressFun(func(_ *xgbutil.XUtil, _ xevent.KeyPressEvent) {
ct.Focus()
}).Connect(ct.X, ct.X.RootWin(), ct.mod, true))
}
func (self *Window) freqLimitedFunc(fun func(*xgbutil.XUtil, xevent.KeyPressEvent)) keybind.KeyPressFun {
return keybind.KeyPressFun(func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
if self.forbidCommand {
return
}
fun(X, ev)
self.forbidCommand = true
go func() {
<-time.After(CMD_FREQ)
self.forbidCommand = false
}()
})
}
func (kcmd keyCommand) attach(run func()) {
if run == nil {
return
}
if kcmd.cmd == "PromptCyclePrev" || kcmd.cmd == "PromptCycleNext" {
// We've got to parse the key string first and make sure
// there are some modifiers; otherwise this utterly fails!
mods, _, _ := keybind.ParseString(X, kcmd.keyStr)
if mods == 0 {
logger.Warning.Printf("Sorry but the key binding '%s' for the %s "+
"command is invalid. It must have a modifier "+
"to work properly. i.e., Mod1-tab where 'Mod1' "+
"is the modifier.", kcmd.keyStr, kcmd.cmd)
return
}
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
run()
}).Connect(X, wingo.root.Id, kcmd.keyStr, true)
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
run()
}).Connect(X, X.Dummy(), kcmd.keyStr, true)
} else {
if kcmd.down {
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
run()
}).Connect(X, wingo.root.Id, kcmd.keyStr, true)
} else {
keybind.KeyReleaseFun(
func(X *xgbutil.XUtil, ev xevent.KeyReleaseEvent) {
run()
}).Connect(X, wingo.root.Id, kcmd.keyStr, true)
}
}
}
func main() {
X, err := xgbutil.NewConn()
if err != nil {
log.Fatalf("Could not connect to X: %v", err)
}
keybind.Initialize(X)
keybind.KeyPressFun(
func(X *xgbutil.XUtil, e xevent.KeyPressEvent) {
fmt.Println("Key press!")
}).Connect(X, X.RootWin(), "Mod4-j")
xevent.Main(X)
}
func main() {
X, err := xgbutil.NewConn()
fatal(err)
keybind.Initialize(X)
slct := prompt.NewSelect(X,
prompt.DefaultSelectTheme, prompt.DefaultSelectConfig)
// Create some artifical groups to use.
artGroups := []prompt.SelectGroup{
slct.NewStaticGroup("Group 1"),
slct.NewStaticGroup("Group 2"),
slct.NewStaticGroup("Group 3"),
slct.NewStaticGroup("Group 4"),
slct.NewStaticGroup("Group 5"),
}
// And now create some artificial items.
items := []*item{
newItem("andrew", 1), newItem("bruce", 2),
newItem("kaitlyn", 3),
newItem("cauchy", 4), newItem("plato", 1),
newItem("platonic", 2),
newItem("andrew gallant", 3),
newItem("Andrew Gallant", 4), newItem("Andrew", 1),
newItem("jim", 1), newItem("jimmy", 2),
newItem("jimbo", 3),
}
groups := make([]*prompt.SelectGroupItem, len(artGroups))
for i, artGroup := range artGroups {
groups[i] = slct.AddGroup(artGroup)
}
for _, item := range items {
item.promptItem = slct.AddChoice(item)
}
geom := headGeom(X)
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
showGroups := newGroups(groups, items)
slct.Show(geom, prompt.TabCompletePrefix, showGroups)
}).Connect(X, X.RootWin(), selectActivate, true)
println("Loaded...")
xevent.Main(X)
}
// setupEventHandlers attaches the canvas' channels to the window and
// sets the appropriate callbacks to some events:
// ConfigureNotify events will cause the window to update its state of geometry.
// Expose events will cause the window to repaint the current image.
// Button events to allow panning.
// Key events to perform various tasks when certain keys are pressed.
func (w *Window) setupEventHandlers(chans chans) {
w.Listen(xproto.EventMaskStructureNotify | xproto.EventMaskExposure |
xproto.EventMaskButtonPress | xproto.EventMaskButtonRelease | xproto.EventMaskKeyPress)
// Get the current geometry in case we don't get a ConfigureNotify event
// (or have already missed it).
if _, err := w.Geometry(); err != nil {
errLg.Fatal(err)
}
// Keep a state of window geometry.
xevent.ConfigureNotifyFun(
func(X *xgbutil.XUtil, ev xevent.ConfigureNotifyEvent) {
w.Geom.WidthSet(int(ev.Width))
w.Geom.HeightSet(int(ev.Height))
}).Connect(w.X, w.Id)
// Repaint the window on expose events.
xevent.ExposeFun(
func(X *xgbutil.XUtil, ev xevent.ExposeEvent) {
chans.ctl <- []string{"pan", "origin"}
}).Connect(w.X, w.Id)
// Setup a drag handler to allow panning.
mousebind.Drag(w.X, w.Id, w.Id, "1", false,
func(X *xgbutil.XUtil, rx, ry, ex, ey int) (bool, xproto.Cursor) {
chans.panStartChan <- image.Point{ex, ey}
return true, 0
},
func(X *xgbutil.XUtil, rx, ry, ex, ey int) {
chans.panStepChan <- image.Point{ex, ey}
},
// We do nothing on mouse release
func(X *xgbutil.XUtil, rx, ry, ex, ey int) { return })
for _, kb := range keybinds {
k := kb // Needed because the callback closure will capture kb
err := keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
chans.ctl <- k.command
}).Connect(w.X, w.Id, k.key, false)
if err != nil {
errLg.Println(err)
}
}
}
func BindKeys(keymap map[string]string) {
X, err := xgbutil.NewConn()
if err != nil {
log.Fatal(err)
}
keybind.Initialize(X)
for k, v := range keymap {
v := v
err = keybind.KeyPressFun(func(X *xgbutil.XUtil, e xevent.KeyPressEvent) {
h.broadcast <- v
}).Connect(X, X.RootWin(), k, true)
if err != nil {
log.Fatal(err)
}
}
log.Println("Program initialized. Start pressing keys!")
xevent.Main(X)
}
// setupEventHandlers attaches the canvas' channels to the window and
// sets the appropriate callbacks to some events:
// ConfigureNotify events will cause the window to update its state of geometry.
// Expose events will cause the window to repaint the current image.
// Button events to allow panning.
// Key events to perform various tasks when certain keys are pressed. Should
// these be configurable? Meh.
func (w *window) setupEventHandlers(chans chans) {
w.chans = chans
w.Listen(xproto.EventMaskStructureNotify | xproto.EventMaskExposure |
xproto.EventMaskButtonPress | xproto.EventMaskButtonRelease |
xproto.EventMaskKeyPress)
// Get the current geometry in case we don't get a ConfigureNotify event
// (or have already missed it).
_, err := w.Geometry()
if err != nil {
errLg.Fatal(err)
}
// And ask the canvas to draw the first image when it gets around to it.
go func() {
w.chans.drawChan <- func(origin image.Point) image.Point {
return image.Point{}
}
}()
// Keep a state of window geometry.
xevent.ConfigureNotifyFun(
func(X *xgbutil.XUtil, ev xevent.ConfigureNotifyEvent) {
w.Geom.WidthSet(int(ev.Width))
w.Geom.HeightSet(int(ev.Height))
}).Connect(w.X, w.Id)
// Repaint the window on expose events.
xevent.ExposeFun(
func(X *xgbutil.XUtil, ev xevent.ExposeEvent) {
w.chans.drawChan <- func(origin image.Point) image.Point {
return origin
}
}).Connect(w.X, w.Id)
// Setup a drag handler to allow panning.
mousebind.Drag(w.X, w.Id, w.Id, "1", false,
func(X *xgbutil.XUtil, rx, ry, ex, ey int) (bool, xproto.Cursor) {
w.chans.panStartChan <- image.Point{ex, ey}
return true, 0
},
func(X *xgbutil.XUtil, rx, ry, ex, ey int) {
w.chans.panStepChan <- image.Point{ex, ey}
},
func(X *xgbutil.XUtil, rx, ry, ex, ey int) {
w.chans.panEndChan <- image.Point{ex, ey}
})
// Set up a map of keybindings to avoid a lot of boiler plate.
// for keystring, fun := range kbs {
for _, keyb := range keybinds {
keyb := keyb
err := keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
keyb.action(w)
}).Connect(w.X, w.Id, keyb.key, false)
if err != nil {
errLg.Println(err)
}
}
}
func main() {
X, err := xgbutil.NewConn()
fatal(err)
// Whenever the mousebind package is used, you must call Initialize.
// Similarly for the keybind package.
keybind.Initialize(X)
mousebind.Initialize(X)
// Easter egg! Use a right click to draw a gopher.
gopherPng, _, err := image.Decode(bytes.NewBuffer(gopher.GopherPng()))
fatal(err)
// Now scale it to a reasonable size.
gopher := xgraphics.Scale(gopherPng, gopherWidth, gopherHeight)
// Create a new xgraphics.Image. It automatically creates an X pixmap for
// you, and handles drawing to windows in the XDraw, XPaint and
// XSurfaceSet functions.
// N.B. An error is possible since X pixmap allocation can fail.
canvas := xgraphics.New(X, image.Rect(0, 0, width, height))
// Color in the background color.
canvas.For(func(x, y int) xgraphics.BGRA {
return bg
})
// Use the convenience function XShowExtra to create and map the
// canvas window.
// XShowExtra will also set the surface window of canvas for us.
// We also use XShowExtra to set the name of the window and to quit the
// main event loop when the window is closed.
win := canvas.XShowExtra("Pointer painting", true)
// Listen for pointer motion events and key press events.
win.Listen(xproto.EventMaskButtonPress | xproto.EventMaskButtonRelease |
xproto.EventMaskKeyPress)
// The mousebind drag function runs three callbacks: one when the drag is
// first started, another at each "step" in the drag, and a final one when
// the drag is done.
// The button sequence (in this case '1') is pressed, the first callback
// is executed. If the first return value is true, the drag continues
// and a pointer grab is initiated with the cursor id specified in the
// second return value (use 0 to keep the cursor unchanged).
// If it's false, the drag stops.
// Note that Drag will automatically compress MotionNotify events.
mousebind.Drag(X, win.Id, win.Id, "1", false,
func(X *xgbutil.XUtil, rx, ry, ex, ey int) (bool, xproto.Cursor) {
drawPencil(canvas, win, ex, ey)
return true, 0
},
func(X *xgbutil.XUtil, rx, ry, ex, ey int) {
drawPencil(canvas, win, ex, ey)
},
func(X *xgbutil.XUtil, rx, ry, ex, ey int) {})
mousebind.Drag(X, win.Id, win.Id, "3", false,
func(X *xgbutil.XUtil, rx, ry, ex, ey int) (bool, xproto.Cursor) {
drawGopher(canvas, gopher, win, ex, ey)
return true, 0
},
func(X *xgbutil.XUtil, rx, ry, ex, ey int) {
drawGopher(canvas, gopher, win, ex, ey)
},
func(X *xgbutil.XUtil, rx, ry, ex, ey int) {})
// Bind to the clear key specified, and just redraw the bg color.
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
clearCanvas(canvas, win)
}).Connect(X, win.Id, clearKey, false)
// Bind a callback to each key specified in the 'pencils' color map.
// The response is to simply switch the pencil color.
for key, clr := range pencils {
c := clr
keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
log.Printf("Changing pencil color to: %#v", c)
pencil = c
}).Connect(X, win.Id, key, false)
}
// Output some basic directions.
fmt.Println("Use the left or right buttons on your mouse to paint " +
"squares and gophers.")
fmt.Println("Pressing numbers 1, 2, 3, 4, 5 or 6 will switch your pencil " +
"color.")
fmt.Println("Pressing 'c' will clear the canvas.")
xevent.Main(X)
}
func (kcmd keyCommand) attach() {
if kcmd.cmdName == "CycleClientPrev" || kcmd.cmdName == "CycleClientNext" {
// We've got to parse the key string first and make sure
// there are some modifiers; otherwise this utterly fails!
mods, _, _ := keybind.ParseString(X, kcmd.keyStr)
if mods == 0 {
logger.Warning.Printf("Sorry but the key binding '%s' for the %s "+
"command is invalid. It must have a modifier "+
"to work properly. i.e., Mod1-tab where 'Mod1' "+
"is the modifier.", kcmd.keyStr, kcmd.cmdName)
return
}
run, err := cmdHacks.CycleClientRunWithKeyStr(kcmd.keyStr, kcmd.cmdStr)
if err != nil {
logger.Warning.Printf("Could not setup %s: %s", kcmd.cmdName, err)
return
}
err = keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
go run()
}).Connect(X, Root.Id, kcmd.keyStr, true)
if err != nil {
logger.Warning.Printf("Could not bind '%s': %s", kcmd.keyStr, err)
}
err = keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
go run()
}).Connect(X, X.Dummy(), kcmd.keyStr, true)
if err != nil {
logger.Warning.Printf("Could not bind '%s': %s", kcmd.keyStr, err)
}
} else {
run := func() {
go func() {
_, err := gribbleEnv.Run(kcmd.cmdStr)
if err != nil {
logger.Warning.Println(err)
}
}()
}
if kcmd.down {
err := keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
run()
}).Connect(X, Root.Id, kcmd.keyStr, true)
if err != nil {
logger.Warning.Printf("Could not bind '%s': %s",
kcmd.keyStr, err)
}
} else {
err := keybind.KeyReleaseFun(
func(X *xgbutil.XUtil, ev xevent.KeyReleaseEvent) {
run()
}).Connect(X, Root.Id, kcmd.keyStr, true)
if err != nil {
logger.Warning.Printf("Could not bind '%s': %s",
kcmd.keyStr, err)
}
}
}
}
func makeWindow(ximage *xgraphics.Image) (*xwindow.Window, *bool) {
w, h := ximage.Rect.Dx(), ximage.Rect.Dy()
window, err := xwindow.Generate(ximage.X)
if err != nil {
xgbutil.Logger.Printf("Could not generate new window id: %s", err)
return nil, nil
}
window.Create(ximage.X.RootWin(), 0, 0, w, h, xproto.CwBackPixel, 0x00000000)
window.Listen(xproto.EventMaskExposure,
xproto.EventMaskKeyPress,
xproto.EventMaskStructureNotify,
xproto.EventMaskVisibilityChange)
window.WMGracefulClose(func(w *xwindow.Window) {
xevent.Detach(w.X, w.Id)
keybind.Detach(w.X, w.Id)
mousebind.Detach(w.X, w.Id)
w.Destroy()
xevent.Quit(w.X)
})
err = icccm.WmStateSet(ximage.X, window.Id, &icccm.WmState{
State: icccm.StateNormal,
})
if err != nil {
xgbutil.Logger.Printf("Could not set WM_STATE: %s", err)
}
err = ewmh.WmNameSet(ximage.X, window.Id, "Computer System Monitor")
if err != nil {
xgbutil.Logger.Printf("Could not set _NET_WM_NAME: %s", err)
}
err = keybind.KeyPressFun(
func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) {
err := ewmh.WmStateReq(ximage.X, window.Id, ewmh.StateToggle,
"_NET_WM_STATE_FULLSCREEN")
if err != nil {
log.Fatal(err)
}
}).Connect(ximage.X, window.Id, "f", false)
if err != nil {
log.Fatal(err)
}
xevent.ExposeFun(
func(xu *xgbutil.XUtil, event xevent.ExposeEvent) {
ximage.XExpPaint(window.Id, 0, 0)
}).Connect(ximage.X, window.Id)
obscured := false
xevent.VisibilityNotifyFun(
func(xu *xgbutil.XUtil, event xevent.VisibilityNotifyEvent) {
obscured = event.State == xproto.VisibilityFullyObscured
}).Connect(ximage.X, window.Id)
window.Map()
return window, &obscured
}
func main() {
// Connect to the X server using the DISPLAY environment variable.
X, err := xgbutil.NewConn()
if err != nil {
log.Fatal(err)
}
// Anytime the keybind (mousebind) package is used, keybind.Initialize
// *should* be called once. It isn't strictly necessary, but allows your
// keybindings to persist even if the keyboard mapping is changed during
// run-time. (Assuming you're using the xevent package's event loop.)
keybind.Initialize(X)
// Before attaching callbacks, wrap them in a callback function type.
// The keybind package exposes two such callback types: keybind.KeyPressFun
// and keybind.KeyReleaseFun.
cb1 := keybind.KeyPressFun(
func(X *xgbutil.XUtil, e xevent.KeyPressEvent) {
log.Println("Key press!")
})
// We can now attach the callback to a particular window and key
// combination. This particular example grabs a key on the root window,
// which makes it a global keybinding.
// Also, "Mod4-j" typically corresponds to pressing down the "Super" or
// "Windows" key on your keyboard, and then pressing the letter "j".
// N.B. This approach works by issuing a passive grab on the window
// specified. To respond to Key{Press,Release} events without a grab, use
// the xevent.Key{Press,Release}Fun callback function types instead.
err = cb1.Connect(X, X.RootWin(), "Mod4-j", true)
// A keybinding can fail if the key string could not be parsed, or if you're
// trying to bind a key that has already been grabbed by another client.
if err != nil {
log.Fatal(err)
}
// We can even attach multiple callbacks to the same key.
err = keybind.KeyPressFun(
func(X *xgbutil.XUtil, e xevent.KeyPressEvent) {
log.Println("A second handler always happens after the first.")
}).Connect(X, X.RootWin(), "Mod4-j", true)
if err != nil {
log.Fatal(err)
}
// Finally, if we want this client to stop responding to key events, we
// can attach another handler that, when run, detaches all previous
// handlers.
// This time, we'll show an example of a KeyRelease binding.
err = keybind.KeyReleaseFun(
func(X *xgbutil.XUtil, e xevent.KeyReleaseEvent) {
// Use keybind.Detach to detach the root window
// from all KeyPress *and* KeyRelease handlers.
keybind.Detach(X, X.RootWin())
log.Printf("Detached all Key{Press,Release}Events from the "+
"root window (%d).", X.RootWin())
}).Connect(X, X.RootWin(), "Mod4-Shift-q", true)
if err != nil {
log.Fatal(err)
}
// Finally, start the main event loop. This will route any appropriate
// KeyPressEvents to your callback function.
log.Println("Program initialized. Start pressing keys!")
xevent.Main(X)
}