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GetModuleFileName info  Overview  Group

The GetModuleFileName function retrieves the full path and filename for the executable file containing the specified module.

Windows 95: The GetModuleFilename function will return long filenames when an application’s version number is greater than or equal to 4.00 and the long filename is available. Otherwise, it returns only 8.3 format filenames.

DWORD GetModuleFileName(

    HMODULE hModule,

// handle to module to find filename for

    LPTSTR lpFilename,

// pointer to buffer to receive module path

    DWORD nSize 

// size of buffer, in characters



Identifies the module whose executable filename is being requested. If this parameter is NULL, GetModuleFileName returns the path for the file used to create the calling process.
Points to a buffer that is filled in with the path and filename of the given module.
Specifies the length, in characters, of the lpFilename buffer. If the length of the path and filename exceeds this limit, the string is truncated.

Return Values

If the function succeeds, the return value is the length, in characters, of the string copied to the buffer.

If the function fails, the return value is zero. To get extended error information, call GetLastError.


If a module is loaded in two processes, its module filename in one process may differ in case from its module filename in the other process.

See Also

GetModuleHandle, LoadLibrary

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