Pegando informações de executável

Function FileVerInfo(const FileName: string;var FileInfo: TStringList): Boolean;
//
// Obtem diversas informações de um arquivo executável
//
// Requer um StringList criado antes de executar a função
// deve ser declarado na clausula Var no inicio da Unit
// StrLst := TStringList.Create;
//
//
const

Key: array[1..9] of string =('CompanyName',
'FileDescription',
'FileVersion',
'InternalName',
'LegalCopyright',
'OriginalFilename',
'ProductName',
'ProductVersion',
'Comments');

KeyBr: array [1..9] of string = ('Empresa..........................',
'Descricao........................',
'Versao do Arquivo...........',
'Nome Interno...................',
'Copyright..........................',
'Nome Original do Arquivo.',
'Produto.............................',
'Versao do Produto............',
'Comentarios...............:');
var
Dummy : THandle;
BufferSize, Len : Integer;
Buffer : PChar;
LoCharSet, HiCharSet : Word;
Translate, Return : Pointer;
StrFileInfo, Flags : string;
TargetOS, TypeArq : string;
FixedFileInfo : Pointer;
i : Byte;
begin
Result := False;
If not FileExists(FileName) then
begin
showmessage('Arquivo não encontrado');
Result := False;
exit;
end;
BufferSize := GetFileVersionInfoSize(PChar(FileName), Dummy);
if BufferSize <> 0 then
begin
GetMem(Buffer, Succ(BufferSize));
try
if GetFileVersionInfo(PChar(FileName), 0, BufferSize,Buffer) then
begin
if VerQueryValue(Buffer, 'VarFileInfoTranslation', Translate, UINT(Len)) then
begin
LoCharSet := LoWord(Longint(Translate^));
HiCharSet := HiWord(Longint(Translate^));
for i := 1 to 9 do
begin
StrFileInfo := Format('StringFileInfo%x0%x%s',[LoCharSet, HiCharSet, Key[i]]);
if VerQueryValue(Buffer,PChar(StrFileInfo), Return,UINT(Len)) then
begin
FileInfo.Add(KeyBr[i] + ': ' + PChar(Return));
end;
end;
if VerQueryValue(Buffer,'',FixedFileInfo, UINT(Len)) then
with TVSFixedFileInfo(FixedFileInfo^) do
begin
Flags := '';
if (dwFileFlags and VS_FF_DEBUG) = VS_FF_DEBUG then
begin
Flags := Concat(Flags,'*Debug* ');
end;
if (dwFileFlags and VS_FF_SPECIALBUILD) = VS_FF_SPECIALBUILD then
begin
Flags := Concat(Flags, '*Special Build* ');
end;
if (dwFileFlags and VS_FF_PRIVATEBUILD) = VS_FF_PRIVATEBUILD then
begin
Flags := Concat(Flags, '*Private Build* ');
end;
if (dwFileFlags and VS_FF_PRERELEASE) = VS_FF_PRERELEASE then
begin
Flags := Concat(Flags, '*Pre-Release Build* ');
end;
if (dwFileFlags and VS_FF_PATCHED) = VS_FF_PATCHED then
begin
Flags := Concat(Flags, '*Patched* ');
end;
if Flags <> '' then
begin
FileInfo.Add('Atributos: ' + Flags);
end;
TargetOS := 'Plataforma (OS): ';
case dwFileOS of
VOS_UNKNOWN : TargetOS := Concat(TargetOS, 'Desconhecido');
VOS_DOS : TargetOS := Concat(TargetOS, 'MS-DOS');
VOS_OS216 : TargetOS := Concat(TargetOS, '16-bit OS/2');
VOS_OS232 : TargetOS := Concat(TargetOS, '32-bit OS/2');
VOS_NT : TargetOS := Concat(TargetOS, 'Windows NT');
VOS_NT_WINDOWS32, 4: TargetOS := Concat(TargetOS, 'Win32 API');
VOS_DOS_WINDOWS16: TargetOS := Concat(TargetOS, '16-bit Windows ','sob MS-DOS');
else
TargetOS := Concat(TargetOS, 'Fora do Padrão. Código: ', IntToStr(dwFileOS));
end;
FileInfo.Add(TargetOS);
TypeArq := 'Tipo de Arquivo: ';
case dwFileType of
VFT_UNKNOWN : TypeArq := Concat(TypeArq,'Desconhecido');
VFT_APP : TypeArq := Concat(TypeArq,'Aplicacao');
VFT_DLL : TypeArq := Concat(TypeArq,'Dynamic-Link Lib.');
VFT_DRV : begin
TypeArq := Concat(TypeArq,'Device driver - Driver ');
case dwFileSubtype of
VFT2_UNKNOWN : TypeArq := Concat(TypeArq,'Desconhecido');
VFT2_DRV_PRINTER : TypeArq := Concat(TypeArq,'de Impressao');
VFT2_DRV_KEYBOARD : TypeArq := Concat(TypeArq,'de Teclado');
VFT2_DRV_LANGUAGE : TypeArq := Concat(TypeArq,'de Idioma');
VFT2_DRV_DISPLAY : TypeArq := Concat(TypeArq,'de Vídeo');
VFT2_DRV_MOUSE : TypeArq := Concat(TypeArq,'de Mouse');
VFT2_DRV_NETWORK : TypeArq := Concat(TypeArq,'de Rede');
VFT2_DRV_SYSTEM : TypeArq := Concat(TypeArq,'de Sistema');
VFT2_DRV_INSTALLABLE : TypeArq := Concat(TypeArq,'Instalavel');
VFT2_DRV_SOUND : TypeArq := Concat(TypeArq,'Multimida');
end;
end;
VFT_FONT : begin
TypeArq := Concat(TypeArq,'Fonte - Fonte ');
case dwFileSubtype of
VFT2_UNKNOWN : TypeArq := Concat(TypeArq, 'Desconhecida');
VFT2_FONT_RASTER : TypeArq := Concat(TypeArq,'Raster');
VFT2_FONT_VECTOR : TypeArq := Concat(TypeArq,'Vetorial');
VFT2_FONT_TRUETYPE : TypeArq := Concat(TypeArq,'TrueType');
end;
end;
VFT_VXD : TypeArq := Concat(TypeArq,'Virtual Device');
VFT_STATIC_LIB: TypeArq := Concat(TypeArq,'Static-Link Lib.');
end;
FileInfo.Add(TypeArq);
end;
end;
end;
finally
FreeMem(Buffer, Succ(BufferSize));
Result := FileInfo.Text <> '';
end;
end;
end;