diff --git a/zh-cn/application-dev/device/pointerstyle-guidelines.md b/zh-cn/application-dev/device/pointerstyle-guidelines.md
index cc5f3fd52ed14efacfad961345635e7588f9f8ac..f8c36332f0f473cb2f8248683866fa0270ef2826 100644
--- a/zh-cn/application-dev/device/pointerstyle-guidelines.md
+++ b/zh-cn/application-dev/device/pointerstyle-guidelines.md
@@ -77,43 +77,48 @@ try {
 5. 设置鼠标光标样式为默认样式。
 
 ```js
+import pointer from '@ohos.multimodalInput.pointer';
 import window from '@ohos.window';
 
 // 1.开发者使能取色功能
 // 2.调用窗口实例获取对应的窗口id
-window.getTopWindow((error, windowClass) => {
-  windowClass.getProperties((error, data) => {
-    var windowId = data.id;
-    if (windowId < 0) {
-      console.log(`Invalid windowId`);
-      return;
-    }
-    try {
-      // 3.设置鼠标光标样式为取色器样式
-      pointer.setPointerStyle(windowId, pointer.PointerStyle.COLOR_SUCKER).then(() => {
-        console.log(`Successfully set mouse pointer style`);
-      });
-    } catch (error) {
-      console.log(`Failed to set the pointer style, error=${JSON.stringify(error)}, msg=${JSON.stringify(message)}`);
-    }
-  });
+window.getLastWindow(this.context, (error, windowClass) => {
+  if (error.code) {
+    console.error('Failed to obtain the top window. Cause: ' + JSON.stringify(error));
+    return;
+  }
+  var windowId = windowClass.getWindowProperties().id;
+  if (windowId < 0) {
+    console.log(`Invalid windowId`);
+    return;
+  }
+  try {
+    // 3.设置鼠标光标样式为取色器样式
+    pointer.setPointerStyle(windowId, pointer.PointerStyle.COLOR_SUCKER).then(() => {
+      console.log(`Successfully set mouse pointer style`);
+    });
+  } catch (error) {
+    console.log(`Failed to set the pointer style, error=${JSON.stringify(error)}, msg=${JSON.stringify(`message`)}`);
+  }
 });
 // 4.取色结束
-window.getTopWindow((error, windowClass) => {
-  windowClass.getProperties((error, data) => {
-    var windowId = data.id;
-    if (windowId < 0) {
-      console.log(`Invalid windowId`);
-      return;
-    }
-    try {
-      // 5.设置鼠标光标样式为默认样式
-      pointer.setPointerStyle(windowId, pointer.PointerStyle.DEFAULT).then(() => {
-        console.log(`Successfully set mouse pointer style`);
-      });
-    } catch (error) {
-      console.log(`Failed to set the pointer style, error=${JSON.stringify(error)}, msg=${JSON.stringify(message)}`);
-    }
-  });
+window.getLastWindow(this.context, (error, windowClass) => {
+  if (error.code) {
+    console.error('Failed to obtain the top window. Cause: ' + JSON.stringify(error));
+    return;
+  }
+  var windowId = windowClass.getWindowProperties().id;
+  if (windowId < 0) {
+    console.log(`Invalid windowId`);
+    return;
+  }
+  try {
+    // 5.设置鼠标光标样式为默认样式
+    pointer.setPointerStyle(windowId, pointer.PointerStyle.DEFAULT).then(() => {
+      console.log(`Successfully set mouse pointer style`);
+    });
+  } catch (error) {
+    console.log(`Failed to set the pointer style, error=${JSON.stringify(error)}, msg=${JSON.stringify(`message`)}`);
+  }
 });
 ```
diff --git a/zh-cn/application-dev/reference/apis/js-apis-pointer.md b/zh-cn/application-dev/reference/apis/js-apis-pointer.md
index deefe2780eb2107ea2a2ebe8979fca43d3e45e48..d4fdde6403d39a226b15e0ac994b74b8aecbd190 100755
--- a/zh-cn/application-dev/reference/apis/js-apis-pointer.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-pointer.md
@@ -278,21 +278,23 @@ getPointerStyle(windowId: number, callback: AsyncCallback&lt;PointerStyle&gt;):
 ```js
 import window from '@ohos.window';
 
-window.getTopWindow((error, win) => {
-  win.getProperties((error, properties) => {
-    let windowId = properties.id;
-    if (windowId < 0) {
-      console.log(`Invalid windowId`);
-      return;
-    }
-    try {
-      pointer.getPointerStyle(windowId, (error, style) => {
-        console.log(`Get pointer style success, style: ${JSON.stringify(style)}`);
-      });
-    } catch (error) {
-      console.log(`Get pointer style failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
-    }
-  });
+window.getLastWindow(this.context, (error, win) => {
+  if (error.code) {
+    console.error('Failed to obtain the top window. Cause: ' + JSON.stringify(error));
+    return;
+  }
+  let windowId = win.getWindowProperties().id;
+  if (windowId < 0) {
+    console.log(`Invalid windowId`);
+    return;
+  }
+  try {
+    pointer.getPointerStyle(windowId, (error, style) => {
+      console.log(`Get pointer style success, style: ${JSON.stringify(style)}`);
+    });
+  } catch (error) {
+    console.log(`Get pointer style failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
+  }
 });
 ```
 
@@ -321,21 +323,23 @@ getPointerStyle(windowId: number): Promise&lt;PointerStyle&gt;
 ```js
 import window from '@ohos.window';
 
-window.getTopWindow((error, win) => {
-  win.getProperties((error, properties) => {
-    let windowId = properties.id;
-    if (windowId < 0) {
-      console.log(`Invalid windowId`);
-      return;
-    }
-    try {
-      pointer.getPointerStyle(windowId).then((style) => {
-        console.log(`Get pointer style success, style: ${JSON.stringify(style)}`);
-      });
-    } catch (error) {
-      console.log(`Get pointer style failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
-    }
-  });
+window.getLastWindow(this.context, (error, win) => {
+  if (error.code) {
+    console.error('Failed to obtain the top window. Cause: ' + JSON.stringify(error));
+    return;
+  }
+  let windowId = win.getWindowProperties().id;
+  if (windowId < 0) {
+    console.log(`Invalid windowId`);
+    return;
+  }
+  try {
+    pointer.getPointerStyle(windowId).then((style) => {
+      console.log(`Get pointer style success, style: ${JSON.stringify(style)}`);
+    });
+  } catch (error) {
+    console.log(`Get pointer style failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
+  }
 });
 ```
 
@@ -360,21 +364,23 @@ setPointerStyle(windowId: number, pointerStyle: PointerStyle, callback: AsyncCal
 ```js
 import window from '@ohos.window';
 
-window.getTopWindow((error, win) => {
-  win.getProperties((error, properties) => {
-    let windowId = properties.id;
-    if (windowId < 0) {
-      console.log(`Invalid windowId`);
-      return;
-    }
-    try {
-      pointer.setPointerStyle(windowId, pointer.PointerStyle.CROSS, error => {
-        console.log(`Set pointer style success`);
-      });
-    } catch (error) {
-      console.log(`Set pointer style failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
-    }
-  });
+window.getLastWindow(this.context, (error, win) => {
+  if (error.code) {
+    console.error('Failed to obtain the top window. Cause: ' + JSON.stringify(error));
+    return;
+  }
+  let windowId = win.getWindowProperties().id;
+  if (windowId < 0) {
+    console.log(`Invalid windowId`);
+    return;
+  }
+  try {
+    pointer.setPointerStyle(windowId, pointer.PointerStyle.CROSS, error => {
+      console.log(`Set pointer style success`);
+    });
+  } catch (error) {
+    console.log(`Set pointer style failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
+  }
 });
 ```
 ## pointer.setPointerStyle<sup>9+</sup>
@@ -398,21 +404,23 @@ setPointerStyle(windowId: number, pointerStyle: PointerStyle): Promise&lt;void&g
 ```js
 import window from '@ohos.window';
 
-window.getTopWindow((error, win) => {
-  win.getProperties((error, properties) => {
-    let windowId = properties.id;
-    if (windowId < 0) {
-      console.log(`Invalid windowId`);
-      return;
-    }
-    try {
-      pointer.setPointerStyle(windowId, pointer.PointerStyle.CROSS).then(() => {
-        console.log(`Set pointer style success`);
-      });
-    } catch (error) {
-      console.log(`Set pointer style failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
-    }
-  });
+window.getLastWindow(this.context, (error, win) => {
+  if (error.code) {
+    console.error('Failed to obtain the top window. Cause: ' + JSON.stringify(error));
+    return;
+  }
+  let windowId = win.getWindowProperties().id;
+  if (windowId < 0) {
+    console.log(`Invalid windowId`);
+    return;
+  }
+  try {
+    pointer.setPointerStyle(windowId, pointer.PointerStyle.CROSS).then(() => {
+      console.log(`Set pointer style success`);
+    });
+  } catch (error) {
+    console.log(`Set pointer style failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
+  }
 });
 ```
 ## PointerStyle<sup>9+</sup>