diff --git a/.gitignore b/.gitignore
index ee2e52a..f83994c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@
 examples/screen/screen
 examples/screen/saveCapture.png
 examples/bitmap/test.png
+examples/bitmap/test2.png
 examples/bitmap/test.tif
 examples/bitmap/test31.tif
 test/test.png
diff --git a/examples/bitmap/main.go b/examples/bitmap/main.go
index 10e1fb5..465f50a 100644
--- a/examples/bitmap/main.go
+++ b/examples/bitmap/main.go
@@ -12,8 +12,10 @@ package main
 
 import (
 	"fmt"
+	"log"
 
 	"github.com/go-vgo/robotgo"
+	"github.com/vcaesar/imgo"
 	// "go-vgo/robotgo"
 )
 
@@ -79,6 +81,20 @@ func main() {
 	robotgo.SaveBitmap(bitmap, "test.png")
 	robotgo.SaveBitmap(bitmap, "test31.tif", 1)
 
+	img, name, err := robotgo.DecodeImg("test.png")
+	if err != nil {
+		log.Println("decode image ", err)
+	}
+	fmt.Println("decode test.png", img, name)
+
+	byt := robotgo.OpenImg("test.png")
+	imgo.Save("test2.png", byt)
+
+	w, h := robotgo.GetImgSize("test.png")
+	fmt.Println("image width and hight ", w, h)
+	w, h = imgo.GetSize("test.png")
+	fmt.Println("image width and hight ", w, h)
+
 	// convert image
 	robotgo.Convert("test.png", "test.tif")
 
diff --git a/examples/key/main.go b/examples/key/main.go
index a294603..ba75ff0 100644
--- a/examples/key/main.go
+++ b/examples/key/main.go
@@ -26,11 +26,15 @@ func main() {
 	robotgo.TypeString("Hello World")
 
 	robotgo.TypeString("留给真爱你的人")
+	robotgo.MicroSleep(1)
+
 	robotgo.TypeStr("所以, 你好, 再见")
+	robotgo.Sleep(1)
+
 	ustr := uint32(robotgo.CharCodeAt("所以, 你好, 再见", 0))
 	robotgo.UnicodeType(ustr)
 
-	robotgo.PasteStr("粘贴字符串, paste")
+	robotgo.PasteStr(" 粘贴字符串, paste")
 
 	// press "enter"
 	robotgo.KeyTap("enter")
diff --git a/examples/main.go b/examples/main.go
index 6211041..2e908df 100644
--- a/examples/main.go
+++ b/examples/main.go
@@ -12,8 +12,10 @@ package main
 
 import (
 	"fmt"
+	"log"
 
 	"github.com/go-vgo/robotgo"
+	"github.com/vcaesar/imgo"
 	// "go-vgo/robotgo"
 )
 
@@ -26,11 +28,15 @@ func key() {
 	robotgo.TypeString("Hello World")
 
 	robotgo.TypeString("留给真爱你的人")
+	robotgo.MicroSleep(1)
+
 	robotgo.TypeStr("所以, 你好, 再见")
+	robotgo.Sleep(1)
+
 	ustr := uint32(robotgo.CharCodeAt("所以, 你好, 再见", 0))
 	robotgo.UnicodeType(ustr)
 
-	robotgo.PasteStr("粘贴字符串, paste")
+	robotgo.PasteStr(" 粘贴字符串, paste")
 
 	// press "enter"
 	robotgo.KeyTap("enter")
@@ -219,6 +225,20 @@ func bitmap() {
 	robotgo.SaveBitmap(bitmap, "test.png")
 	robotgo.SaveBitmap(bitmap, "test31.tif", 1)
 
+	img, name, err := robotgo.DecodeImg("test.png")
+	if err != nil {
+		log.Println("decode image ", err)
+	}
+	fmt.Println("decode test.png", img, name)
+
+	byt := robotgo.OpenImg("test.png")
+	imgo.Save("test2.png", byt)
+
+	w, h := robotgo.GetImgSize("test.png")
+	fmt.Println("image width and hight ", w, h)
+	w, h = imgo.GetSize("test.png")
+	fmt.Println("image width and hight ", w, h)
+
 	// convert image
 	robotgo.Convert("test.png", "test.tif")