MsiGetFileVersionA function (msi.h)

The MsiGetFileVersion returns the version string and language string in the format that the installer expects to find them in the database. If you want only version information, set lpLangBuf and pcchLangBuf to 0 (zero). If you just want language information, set lpVersionBuf and pcchVersionBuf to 0 (zero).

UINT MsiGetFileVersionA(
  [in]      LPCSTR  szFilePath,
  [out]     LPSTR   lpVersionBuf,
  [in, out] LPDWORD pcchVersionBuf,
  [out]     LPSTR   lpLangBuf,
  [in, out] LPDWORD pcchLangBuf
);

[in] szFilePath

Specifies the path to the file.

[out] lpVersionBuf

Returns the file version.

Set to 0 for language information only.

[in, out] pcchVersionBuf

In and out buffer count as the number of TCHAR.

Set to 0 (zero) for language information only. On input, this is the full size of the buffer, including a space for a terminating null character. If the buffer passed in is too small, the count returned does not include the terminating null character.

[out] lpLangBuf

Returns the file language.

Set to 0 (zero) for version information only.

[in, out] pcchLangBuf

In and out buffer count as the number of TCHAR.

Set to 0 (zero) for version information only. On input, this is the full size of the buffer, including a space for a terminating null character. If the buffer passed in is too small, the count returned does not include the terminating null character.

System Status Functions