diff --git a/.circleci/config.yml b/.circleci/config.yml
index 54858e1..d1edb3e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -12,10 +12,10 @@ jobs:
       # specify any bash command here prefixed with `run: `
       - run: apt update
       - run: apt -y install gcc libc6-dev
-      - run: apt -y install libx11-dev xorg-dev libxtst-dev libpng++-dev
-      - run: apt -y install xcb libxcb-xkb-dev x11-xkb-utils libx11-xcb-dev libxkbcommon-x11-dev
-      - run: apt -y install libxkbcommon-dev
-      - run: apt -y install xsel xclip
+          libx11-dev xorg-dev libxtst-dev libpng++-dev
+          xcb libxcb-xkb-dev x11-xkb-utils libx11-xcb-dev libxkbcommon-x11-dev
+          libxkbcommon-dev
+          xsel xclip
       - run: apt -y install xvfb
       #
       #  override:
diff --git a/examples/window/main.go b/examples/window/main.go
index fb8bbb1..292ee35 100644
--- a/examples/window/main.go
+++ b/examples/window/main.go
@@ -39,10 +39,6 @@ func get() {
 	hwnd := robotgo.GetHandle()
 	fmt.Println("hwnd---", hwnd)
 
-	// get current Window Handle
-	bhwnd := robotgo.GetBHandle()
-	fmt.Println("bhwnd---", bhwnd)
-
 	// get current Window title
 	title := robotgo.GetTitle()
 	fmt.Println("title-----", title)