QueryPerformanceFrequency() [英] QueryPerformanceFrequency()

问题描述

此语句的含义是:

What is the meaning of this statement:

QueryPerformanceFrequency((LARGE_INTEGER*)&freq);

任何人都可以解释一下吗?

Can anyone please explain?

推荐答案

如果您担心

If you are concerned about the

(LARGE_INTEGER*)&freq

部分，我想freq变量未声明为LARGE_INTEGER(但至少从作者的角度来看，它的类型与之兼容)，因此需要强制转换(在其后地址是通过&运算符获取的.)

part, I guess the freq variable isn''t declared as LARGE_INTEGER (but it''s type, at least from the author''s point of view, is compatible with) so a cast is needed (after its address is taken via the & operator).

对MSDN的简单搜索会产生

A simple search of MSDN yields this[^].

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