How to get value of an environment variable

28 01 2012

Windows Environment Variables hold some system paths or user defined paths. How can we read the contents of a specified environment variable.

There is an API GetEnvironmentVariable, which retrieves the contents of the specified variable from the environment block of the calling process.

 

 

void ReadEnvironmentVariable()
{
	TCHAR tcPath[MAX_PATH];
	GetEnvironmentVariable( _T("TMP"), tcPath, MAX_PATH );
}

This function can retrieve either a system environment variable or a user environment variable.

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5 responses

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