¿GetFileVersionInfo modifica su primer parámetro? (FileName, la ruta de archivo dada)

[Casimiro Noteví]

Delphi 5, en comctrls.pas

Código Delphi [-]
function GetComCtlVersion: Integer;
var
  FileName: string;
  InfoSize, Wnd: DWORD;
  VerBuf: Pointer;
  FI: PVSFixedFileInfo;
  VerSize: DWORD;
begin
  if ComCtlVersion = 0 then
  begin
    // GetFileVersionInfo modifies the filename parameter data while parsing.
    // Copy the string const into a local variable to create a writeable copy.
    FileName := ComCtlDllName;
    InfoSize := GetFileVersionInfoSize(PChar(FileName), Wnd);
    if InfoSize <> 0 then
    begin
      GetMem(VerBuf, InfoSize);
      try
        if GetFileVersionInfo(PChar(FileName), Wnd, InfoSize, VerBuf) then
          if VerQueryValue(VerBuf, '\', Pointer(FI), VerSize) then
            ComCtlVersion := FI.dwFileVersionMS;
      finally
        FreeMem(VerBuf);
      end;
    end;
  end;
  Result := ComCtlVersion;
end;