最后，我们需要在头文件的“private：”部分中添加一个变量。
Finally, we need to add a single variable to the 'private:' section of the header file. This is the object that will handle the external executable (FFMPEG) from within qt.
部分Spirit框架在内部使用来自Boost的正则表达式库，在已安装的代码库中检查regex . h头文件。
Part of the Spirit framework internally USES the regular-expression library from Boost. After installation, check for the regex.h.
绝大部分情况下，没有理由去测试是否有权使用自 1989版本标准出现以后的ANSI/ISOC 中的函数或者标准的 C 头文件是否可用。
In most cases, there is no reason to test for access to functions that have been part of ANSI/ISO C since the 1989 version of the standard came out, or for availability of the standard C headers.
PPU代码中最有意思的一部分是包括了libspe.h头文件，它包含了所有用来在SPE上运行程序的函数声明。
The first interesting part of the PPU code is the inclusion of the libspe.h header file, which contains all of the function declarations for running programs on the SPE.
基本上，C+ +amp将会是一个类似STL的库，“作为现有并发命名空间的一部分，并通过新的amp . h头文件发布”，Moth写道。
C + + amp will be basically an STL-like library "as part of the existing concurrency namespace and delivered in the new amp.h header file", wrote Moth.
复杂的应用程序通常会使用头文件(. h或者.hpp)文件，它们是需要作为一部分进行包括的一个或多个源文件的代码部分。
Complex applications often make use of header (.h or.hpp) files, which are sections of code that are meant to be included as part of one or more source files.
注意，不需要单独的主函数，代码也不使用任何链接库：作为Boost一部分的unit _ test .hpp头文件中包含所需的所有定义。
Notice that no separate main function is needed, nor does the code use any link library: the unit_test.hpp header that's part of the Boost installation contains all the necessary definitions.
该头文件中导出的大部分应该是属于实现，所以此处没有详细说明。
Much of what is exposed in this header should be considered part of the implementation, so is not documented in detail here.
该头文件中导出的大部分应该是属于实现，所以此处没有详细说明。
Much of what is exposed in this header should be considered part of the implementation, so is not documented in detail here.
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