1# OH_NativeXComponent_Callback
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4## 概述
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6注册surface生命周期和触摸事件回调。
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8**起始版本：** 8
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10**相关模块：**[Native XComponent](_o_h___native_x_component.md)
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13## 汇总
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16### 成员变量
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18| 名称 | 描述 |
19| -------- | -------- |
20| void(\* [OnSurfaceCreated](_o_h___native_x_component.md#onsurfacecreated) )([OH_NativeXComponent](_o_h___native_x_component.md#oh_nativexcomponent) \*component, void \*window) |  创建surface时调用。|
21| void(\* [OnSurfaceChanged](_o_h___native_x_component.md#onsurfacechanged) )([OH_NativeXComponent](_o_h___native_x_component.md#oh_nativexcomponent) \*component, void \*window) |  当surface改变时调用。|
22| void(\* [OnSurfaceDestroyed](_o_h___native_x_component.md#onsurfacedestroyed) )([OH_NativeXComponent](_o_h___native_x_component.md#oh_nativexcomponent) \*component, void \*window) |  当surface被销毁时调用。|
23| void(\* [DispatchTouchEvent](_o_h___native_x_component.md#dispatchtouchevent) )([OH_NativeXComponent](_o_h___native_x_component.md#oh_nativexcomponent) \*component, void \*window) |  当触摸事件被触发时调用。|
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