010.dat

function GetFixedFileVerInfo(const FileName: string;
  out FFI: Windows.TVSFixedFileInfo): Boolean;
var
  VerInfoBuf: Pointer;    // points to memory storing version info
  VerInfoSize: Integer;   // size of version info memory
  Dummy: Cardinal;        // unused parameter required by API function
  PFFI: Pointer;          // points to fixed file info
  FFISize: Windows.UINT;  // size of file file info returned from API (unused)
begin
  // Assume failure: sets zero result
  FillChar(FFI, SizeOf(FFI), 0);
  Result := False;
  // Get size of version info: there is none if this is zero
  VerInfoSize := Windows.GetFileVersionInfoSize(PChar(FileName), Dummy);
  if VerInfoSize > 0 then
  begin
    // Allocate memory to store ver info
    GetMem(VerInfoBuf, VerInfoSize);
    try
      // Get the version info, filling buffer
      if Windows.GetFileVersionInfo(
        PChar(FileName), Dummy, VerInfoSize, VerInfoBuf
      ) then
      begin
        // Get a pointer to fixed file info
        if Windows.VerQueryValue(VerInfoBuf, '\', PFFI, FFISize) then
        begin
          // Got pointer OK: record file version
          FFI := Windows.PVSFixedFileInfo(PFFI)^;
          Result := True;
        end;
      end;
    finally
      // Dispose of ver info storage
      FreeMem(VerInfoBuf, VerInfoSize);
    end;
  end;
end;