harmony 鸿蒙native_vsync.h
native_vsync.h
Overview
The native_vsync.h file declares the functions for obtaining and using native virtual synchronization (VSync).
Since
9
Related Modules
Summary
Types
| Name | Description |
|---|---|
| OH_NativeVSync | Provides the declaration of an OH_NativeVSync struct. |
| (*OH_NativeVSync_FrameCallback) (long long timestamp, void *data) | Defines the pointer to a VSync callback function. |
Functions
| Name | Description |
|---|---|
| OH_NativeVSync_Create (const char *name, unsigned int length) | Creates an OH_NativeVSync instance. A new OH_NativeVSync instance is created each time this function is called. |
| OH_NativeVSync_Destroy (OH_NativeVSync *nativeVsync) | Destroys an OH_NativeVSync instance. |
| OH_NativeVSync_RequestFrame (OH_NativeVSync *nativeVsync, OH_NativeVSync_FrameCallback callback, void *data) | Requests the next VSync signal. When the signal arrives, a callback function is invoked. |
| OH_NativeVSync_GetPeriod (OH_NativeVSync *nativeVsync, long long *period) | Obtains the VSync period. |
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