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分享请教GetEnvironmentVariable的问题
GetEnvironmentVariable("windir", szDir, 255);是什么意思？windir、szDir和255这些参数怎么设置的，设置后，在电脑哪里可以找到？谢谢！！
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一名程序员 2011-02-19
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在我的电脑的属性里的高级中的环境变量设置中能找到。如path变量的设置。
yschat2010 2011-02-19
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谢谢！！！
gradual 2011-02-17
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DWORD WINAPI GetEnvironmentVariable(
__in LPCTSTR lpName,
__out LPTSTR lpBuffer,
__in DWORD nSize
);
Parameters
lpName
The name of the environment variable.
lpBuffer
A pointer to a buffer that receives the contents of the specified environment variable as a null-terminated string. An environment variable has a maximum size limit of 32,767 characters, including the null-terminating character.
nSize
The size of the buffer pointed to by the lpBuffer parameter, in characters.
__in LPCTSTR lpName,
__out LPTSTR lpBuffer,
__in DWORD nSize
);
Parameters
lpName
The name of the environment variable.
lpBuffer
A pointer to a buffer that receives the contents of the specified environment variable as a null-terminated string. An environment variable has a maximum size limit of 32,767 characters, including the null-terminating character.
nSize
The size of the buffer pointed to by the lpBuffer parameter, in characters.
向立天 2011-02-17
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