Return Value
Returns a handle that can be passed to TimerDiff() to calculate the difference in milliseconds.
Remarks
The return value from TimerInit() should be treated as an opaque handle and should only be used to pass to TimerDiff(). Any other usage of the return value is a potential error.
我只是照字面意思理解,感觉应该是Unix时间戳(英文为Unix epoch, Unix time, POSIX time 或 Unix timestamp)
是从1970年1月1日(UTC/GMT的午夜)开始所经过的秒数,不考虑闰秒。
UNIX时间戳的0按照ISO 8601规范为 :1970-01-01T00:00:00Z.