api:
FreeEnvironmentStrings, GetEnvironmentVariable, SetEnvironmentVariable
GetEnvironmentStrings
#include <stdlib.h>
_putenv( const char *envstring)
通过注册表API
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE,strKey,0,KEY_WRITE,&hResult)!=ERROR_SUCCESS)
{
return 0;
}
if(RegSetValueEx(hResult,szName,NULL,REG_SZ,
(const unsigned char *)szValue,strlen(szValue)) !=
ERROR_SUCCESS)
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