add nativeapis

Signed-off-by: Nzengyawen <zengyawen1@huawei.com>

en/application-dev/reference/native-apis/_rect.md

+# Rect
+
+
+## Overview
+
+If **rects** is a null pointer, the buffer size is the same as the size of the dirty region by default.
+
+
+**Related Modules:**
+
+[NativeWindow](_native_window.md)
+
+
+## Summary
+
+
+
+### Member Variables
+
+| Name | Description | 
+| -------- | -------- |
+| x | Start X coordinate of the rectangle. | 
+| y | Start Y coordinate of the rectangle.  | 
+| w | Width of the rectangle. | 
+| h | Height of the rectangle.  | 
+
+
+## Member Variable Description 
+
+### x
+
+```
+int32_t Rect::x
+```
+**Description**<br>
+Start X coordinate of the rectangle.
+
+
+### y
+
+  
+```
+int32_t Rect::y
+```
+**Description**<br>
+Start Y coordinate of the rectangle.
+
+### w
+
+  
+```
+int32_t Rect::w
+```
+**Description**<br>
+Width of the rectangle.
+
+
+### h
+
+  
+```
+int32_t Rect::h
+```
+**Description**<br>
+Height of the rectangle.