GetComputerName　C++

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https://stackoverflow.com/questions/27914311/get-computer-name-and-logged-use…
Get Computer Name and logged user name
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29edited Jan 6, 2017 at 8:18
Windows
You can try to use GetComputerName and GetUserName, here is a example:

#define INFO_BUFFER_SIZE 32767
TCHAR infoBuf[INFO_BUFFER_SIZE];
DWORD bufCharCount = INFO_BUFFER_SIZE;

// Get and display the name of the computer.
if( !GetComputerName( infoBuf, &bufCharCount ) )
printError( TEXT("GetComputerName") );
_tprintf( TEXT("\nComputer name: %s"), infoBuf );

// Get and display the user name.
if( !GetUserName( infoBuf, &bufCharCount ) )
printError( TEXT("GetUserName") );
_tprintf( TEXT("\nUser name: %s"), infoBuf );
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Microsoft Learn
https://learn.microsoft.com/ja-jp/windows/win32/api/...
GetComputerNameA 関数 (winbase.h) - Win32 apps ...
GetComputerName 関数は、システムの起動時に確立された NetBIOS 名を取得します。 SetComputerName 関数または SetComputerNameEx 関数によって行われた …
呼び出し元がクライアントセッションで実行されている場合、この関数はサーバー名を返します。クライアント名を取得するには、 WTSQuerySe… See more
概要
ローカルコンピューターの NetBIOS 名を取得します。この名前は、システム …
GetComputerName は、ローカルコンピューターの NetBIOS … See more
戻り値
関数が成功した場合、戻り値は 0 以外の値になります。
関数が失敗した場合は、0 を返します。詳細なエラー情報を … See more
パラメーター
[out] lpBuffer
コンピューター名またはクラスター仮想サーバー名を受け取るバッファーへのポ …
[in, out] nSize
入力時に、バッファーのサイズを TCHAR で指定します。出力 … See more
関連項目
1. コンピューター名
2. GetComputerNameEx
3. SetComputerName
4. SetComputerNameEx
5. See more
From Microsoft
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概要

パラメーター

戻り値

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What does getcomputername do in NetBIOS?
The GetComputerName function retrieves the NetBIOS name established at system startup. Name changes made by the SetComputerName or SetComputerNameEx functions do not take effect until the user restarts the computer. If the caller is running under a client session, this function returns the server name.
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The winbase.h header defines GetComputerName as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors.
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How do I get a computer name in Linux?
Use gethostname() to get computer name, support both windows and linux. Regarding Denis's answer, note that getenv("HOSTNAME") for Linux may not always work because the environment variables may not be exported to the program. Multi-platform C++ code example to fetch just the computer name (this is what worked for my Win7 and CentOS machines):
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c++ - Get Computer Name and logged user name - Stack ...
WebJul 29, 2016 · see: GetComputerName and GetUserName Linux Use gethostname to get computer name(see gethostname), and getlogin_r to get login username. You can look …
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Windows You can try to use GetComputerName and GetUserName , here is a example: #define INFO_BUFFER_SIZE 32767 TCHAR infoBuf[INFO_BUFFER_SIZE];...
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If you can use Boost, you can do this to easily get the host name: #include <boost/asio/ip/host_name.hpp> // ... whatever ... const auto host_name...
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Webコンピュータ名の取得にはGetComputerName関数を使用します。ローカルコンピュータの NetBIOS 名を取得します。この名前はシステムの起動時に確立されるもので、シ …
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