1# ArkUI_Rect 2 3 4## Overview 5 6Defines a mask area. 7 8**Since**: 12 9 10**Related module**: [ArkUI_NativeModule](_ark_u_i___native_module.md) 11 12 13## Summary 14 15 16### Member Variables 17 18| Name| Description| 19| -------- | -------- | 20| float [x](#x) | X-coordinate of the mask area. | 21| float [y](#y) | Y-coordinate of the mask area. | 22| float [width](#width) | Width of the mask area. | 23| float [height](#height) | Height of the mask area. | 24 25 26## Member Variable Description 27 28 29### height 30 31``` 32float ArkUI_Rect::height 33``` 34**Description** 35 36Height of the mask area. 37 38 39### width 40 41``` 42float ArkUI_Rect::width 43``` 44**Description** 45 46Width of the mask area. 47 48 49### x 50 51``` 52float ArkUI_Rect::x 53``` 54**Description** 55 56X-coordinate of the mask area. 57 58 59### y 60 61``` 62float ArkUI_Rect::y 63``` 64**Description** 65 66Y-coordinate of the mask area. 67