| numFrames | 用户提供所需数量要获得其 FrameTimings 的帧。这应等于或小于该平台能够捕获的最大 FrameTimings。 |
| timings | FrameTiming 结构的数组，由用户传入并将根据请求在其中填充数据。用户负责确保传入的数组足够大，可容纳请求数量的 FrameTimings。 |
uint 返回可实际获取的 FrameTimings 数量。根据已捕获 FrameTimings 的可用性，始终等于或小于所请求的 numFrames。
可使用户访问当前捕获的 FrameTimings。
在用户提供的数组中填充请求数量的 FrameTimings（假设最近一次 CaptureFrameTimings 调用获得足够数量）。该数组从起始位置填充最近完成的帧 FrameTimings，依次向后填充。因此，返回数组的元素 0 包含最近一次完全完成的帧的数据。将捕获的最大帧数将因平台而异，返回的帧数可能永远不会超过其最大值。
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