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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Answer
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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https://learn.microsoft.com/en-us/windows/win32/api/...
GetComputerNameA function (winbase.h) - Win32 apps
Retrieves the NetBIOS name of the local computer. This name is established at system startup, when the system reads it from the registry.
GetComputerName retrieves only the NetBIOS name of the local computer. To retrieve the DNS host name, DNS domain name, or the fully qualifi… See more
Parameters
[out] lpBuffer
A pointer to a buffer that receives the computer name or the cluster virtual ser…
[in, out] nSize
On input, specifies the size of the buffer, in TCHARs. On output, t… See more
See also
1. Computer Names
2. GetComputerNameEx
3. SetComputerName
4. SetComputerNameEx
5. S… See more
Return value
If the function succeeds, the return value is a nonzero value.
If the function fails, the return value is zero. To get extende… See more
Remarks
The GetComputerName function retrieves the NetBIOS name established at syste…
If the caller is running under a client session, this function returns the server …
Examples
For an example, see … See more
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WEBGetComputerName は、ローカルコンピューターの NetBIOS 名のみを取得します。 DNS ホスト名、DNS ドメイン名、または完全修飾 DNS 名を取得するには、 …
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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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What is getcomputername in winbase?
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 retrieve the NetBIOS name of a local computer?
Retrieves the NetBIOS name of the local computer. This name is established at system startup, when the system reads it from the registry. GetComputerName retrieves only the NetBIOS name of the local computer. To retrieve the DNS host name, DNS domain name, or the fully qualified DNS name, call the GetComputerNameEx function.
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How do I get a computer name if 'user' is a string?
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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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What is getcomputernameex in sysinfoapi?
ZeroMemory(buffer, dwSize); The sysinfoapi.h header defines GetComputerNameEx as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant.
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c++ - Get Computer Name and logged user name - Stack ...
WEBJul 29, 2016 · 6 Answers. Sorted by: 31. Windows. You can try to use GetComputerName and GetUserName, here is a example: #define INFO_BUFFER_SIZE 32767. TCHAR …
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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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On POSIX systems you can use the gethostname and getlogin functions, both declared in unistd.h . /* This is a C program (I've seen the C++...
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WEBコンピュータ名を取得を取得します。 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 …
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