diff --git a/stdin_unix.go b/stdin_unix.go
index 4c0d6e1..b478b89 100644
--- a/stdin_unix.go
+++ b/stdin_unix.go
@@ -27,6 +27,7 @@ import (
 	"syscall"
 	"time"
 
+	"golang.org/x/sys/unix"
 	"golang.org/x/term"
 )
 
@@ -133,11 +134,14 @@ func (tty *stdIoTty) Stop() error {
 	return nil
 }
 
-func (tty *stdIoTty) WindowSize() (int, int, error) {
-	w, h, err := term.GetSize(tty.fd)
+func (tty *stdIoTty) WindowSize() (WindowSize, error) {
+	size := WindowSize{}
+	ws, err := unix.IoctlGetWinsize(tty.fd, unix.TIOCGWINSZ)
 	if err != nil {
-		return 0, 0, err
+		return size, err
 	}
+	w := int(ws.Col)
+	h := int(ws.Row)
 	if w == 0 {
 		w, _ = strconv.Atoi(os.Getenv("COLUMNS"))
 	}
@@ -150,7 +154,11 @@ func (tty *stdIoTty) WindowSize() (int, int, error) {
 	if h == 0 {
 		h = 25 // default
 	}
-	return w, h, nil
+	size.Width = w
+	size.Height = h
+	size.PixelWidth = int(ws.Xpixel)
+	size.PixelHeight = int(ws.Ypixel)
+	return size, nil
 }
 
 func (tty *stdIoTty) NotifyResize(cb func()) {
diff --git a/tscreen.go b/tscreen.go
index e1d0126..568e58f 100644
--- a/tscreen.go
+++ b/tscreen.go
@@ -1091,19 +1091,22 @@ func (t *tScreen) Size() (int, int) {
 }
 
 func (t *tScreen) resize() {
-	if w, h, e := t.tty.WindowSize(); e == nil {
-		if w != t.w || h != t.h {
-			t.cx = -1
-			t.cy = -1
-
-			t.cells.Resize(w, h)
-			t.cells.Invalidate()
-			t.h = h
-			t.w = w
-			ev := NewEventResize(w, h)
-			_ = t.PostEvent(ev)
-		}
+	ws, err := t.tty.WindowSize()
+	if err != nil {
+		return
 	}
+	if ws.Width == t.w && ws.Height == t.h {
+		return
+	}
+	t.cx = -1
+	t.cy = -1
+
+	t.cells.Resize(ws.Width, ws.Height)
+	t.cells.Invalidate()
+	t.h = ws.Height
+	t.w = ws.Width
+	ev := &EventResize{t: time.Now(), ws: ws}
+	_ = t.PostEvent(ev)
 }
 
 func (t *tScreen) Colors() int {
@@ -1894,8 +1897,8 @@ func (t *tScreen) engage() error {
 		return err
 	}
 	t.running = true
-	if w, h, err := t.tty.WindowSize(); err == nil && w != 0 && h != 0 {
-		t.cells.Resize(w, h)
+	if ws, err := t.tty.WindowSize(); err == nil && ws.Width != 0 && ws.Height != 0 {
+		t.cells.Resize(ws.Width, ws.Height)
 	}
 	stopQ := make(chan struct{})
 	t.stopQ = stopQ
diff --git a/tty.go b/tty.go
index 1e7c02e..8bb1ac5 100644
--- a/tty.go
+++ b/tty.go
@@ -50,7 +50,7 @@ type Tty interface {
 
 	// WindowSize is called to determine the terminal dimensions.  This might be determined
 	// by an ioctl or other means.
-	WindowSize() (width int, height int, err error)
+	WindowSize() (WindowSize, error)
 
 	io.ReadWriteCloser
 }
diff --git a/tty_unix.go b/tty_unix.go
index 05d5a7d..ca82d83 100644
--- a/tty_unix.go
+++ b/tty_unix.go
@@ -27,6 +27,7 @@ import (
 	"syscall"
 	"time"
 
+	"golang.org/x/sys/unix"
 	"golang.org/x/term"
 )
 
@@ -136,11 +137,14 @@ func (tty *devTty) Stop() error {
 	return nil
 }
 
-func (tty *devTty) WindowSize() (int, int, error) {
-	w, h, err := term.GetSize(tty.fd)
+func (tty *devTty) WindowSize() (WindowSize, error) {
+	size := WindowSize{}
+	ws, err := unix.IoctlGetWinsize(tty.fd, unix.TIOCGWINSZ)
 	if err != nil {
-		return 0, 0, err
+		return size, err
 	}
+	w := int(ws.Col)
+	h := int(ws.Row)
 	if w == 0 {
 		w, _ = strconv.Atoi(os.Getenv("COLUMNS"))
 	}
@@ -153,7 +157,11 @@ func (tty *devTty) WindowSize() (int, int, error) {
 	if h == 0 {
 		h = 25 // default
 	}
-	return w, h, nil
+	size.Width = w
+	size.Height = h
+	size.PixelWidth = int(ws.Xpixel)
+	size.PixelHeight = int(ws.Ypixel)
+	return size, nil
 }
 
 func (tty *devTty) NotifyResize(cb func()) {