From cba8ca5f7b826bfe844422f16222ea05aa19504f Mon Sep 17 00:00:00 2001
From: lihui <lihui359@huawei.com>
Date: Mon, 24 Mar 2025 16:15:06 +0800
Subject: [PATCH] add close hebc doc

Signed-off-by: lihui <lihui359@huawei.com>
---
 graphic/graphic_2d/native_window/external_window.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/graphic/graphic_2d/native_window/external_window.h b/graphic/graphic_2d/native_window/external_window.h
index 41b01ce8d..b5127d831 100644
--- a/graphic/graphic_2d/native_window/external_window.h
+++ b/graphic/graphic_2d/native_window/external_window.h
@@ -544,6 +544,18 @@ int32_t OH_NativeWindow_NativeWindowAbortBuffer(OHNativeWindow *window, OHNative
  * @brief Sets or obtains the attributes of a native window, including the width, height, and content format.\n
  * This interface is a non-thread-safe type interface.\n
  *
+ * <p><strong>API Note</strong>
+ *
+ * <strong>Performance Note</strong>
+ * <p>By default, the native window buffer uses the CPU to access data,
+ * and when the application does not need to use the CPU to access the native window buffer data,
+ * it can actively disable the CPU access capability to improve energy efficiency and reduce power consumption.
+ * </p>
+ * <p>Refer to [How to actively close the CPU to access the native window buffer data to reduce power consumption]
+ * {@link https://developer.huawei.com/consumer/cn/doc/harmonyos-faqs/faqs-arkgraphics-2d-14}Guide,
+ * which optimizes power consumption for data reads and writes in native window buffers.</p>
+ * </p>
+ *
  * @syscap SystemCapability.Graphic.Graphic2D.NativeWindow
  * @param window Indicates the pointer to a <b>OHNativeWindow</b> instance.
  * @param code Indicates the operation code, pointer to <b>NativeWindowOperation</b>.
-- 
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