ユーザー名を得る(Core Graphics Framework使用) - sugawara @ ウィキ

Mac OS X Tips

CFStringRef userName;
CFDictionaryRef sessionInfoDict;

sessionInfoDict = CGSessionCopyCurrentDictionary();
if ( sessionDictionary == nil ) {
    printf( "Unnable to get session dictionary.?n" );
    return;
}

userName = (const CFStringRef)CFDictionaryGetValue( sessionInfoDict, kCGSessionUserNameKey );