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{
This file is part of the Free Component Library (FCL)
Copyright (c) 1999-2000 by the Free Pascal development team
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
{
Based on getver by Bernd Juergens - Munich, Germany
email :bernd@promedico.com
Usage : Drop component on form. Set desired file name using
FileVersionInfo.filename := 'c:\winnt\system32\comctl32.dll'
or something like that.
Read StringLists VersionStrings and VersionCategories.
or check a single entry:
FileVersionInfo1.fileName := 'd:\winnt\system32\comctl32.dll';
showMessage(FileVersionInfo1.getVersionSetting('ProductVersion'));
}
unit fileinfo;
{$mode objfpc}
interface
uses
Windows, SysUtils, Classes;
{ Record to receive charset }
type TTranslation = record
langID : WORD;
charset : WORD;
end;
type
TFileVersionInfo = class(TComponent)
private
FFileName : WideString;
FmyVersionStrings : TStringList;
FmyVersionCategories : TStringList;
procedure SetFileName (const cwsFile : Widestring);
procedure readVersionFromFile;
protected
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
function getVersionSetting(inp : string): String;
published
property fileName : widestring read FFileName write SetFileName;
property VersionStrings : TStringList read FmyVersionStrings;
property VersionCategories : TStringList read FmyVersionCategories;
end;
implementation
{ initialize everything }
constructor TFileVersionInfo.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FmyVersionStrings := TStringList.Create;
FmyVersionCategories := TStringList.Create;
FFileName := '';
end;
destructor TFileVersionInfo.Destroy;
begin
FmyVersionCategories.Free;
FmyVersionStrings.Free;
inherited;
end;
{ Get filename, check if file exists and read info from file }
procedure TFileVersionInfo.SetFileName (const cwsFile : Widestring);
begin
FmyVersionStrings.clear;
FmyVersionCategories.clear;
if fileexists(cwsFile) then
begin
FFileName := cwsFile;
readVersionFromFile;
end
else
begin
FFileName := '';
end;
end;
{ read info from file }
procedure TFileVersionInfo.readVersionFromFile;
var dwHandle, dwSize : Longword;
p : pwidechar;
i : integer;
pp : pointer;
theFixedInfo : TVSFixedFileInfo;
theTrans : TTranslation;
s : widestring;
ts : TStringList;
begin
ts := TStringList.Create;
try
ts.add('CompanyName');
ts.add('FileDescription');
ts.add('FileVersion');
ts.add('InternalName');
ts.add('LegalCopyright');
ts.add('OriginalFilename');
ts.add('ProductName');
ts.add('ProductVersion');
{ get size of data }
dwSize := GetFileVersionInfoSize(PWidechar(FFilename),@dwHandle);
if dwSize=0 then exit;
p := NIL;
try
{ get memory }
GetMem(p,dwSize+10);
{ get data }
if not GetFileVersionInfo(PWidechar(FFilename),0,dwSize,p) then exit;
{ get root info }
if not VerQueryValue(p,'\',pp,PUINT(dwSize)) then exit;
move(pp^,theFixedInfo,dwSize);
{ get translation info }
if not VerQueryValue(p,'\VarFileInfo\Translation',pp,PUINT(dwSize)) then
exit;
move(pp^,theTrans,dwSize);
{ iterate over defined items }
for i:=0 to ts.count-1 do
begin
s := WideFormat('\StringFileInfo\%4x%4x\%s',[theTrans.langID,theTrans.charset,ts[i]]);
if not VerQueryValue(p,PWideChar(s),pp,PUINT(dwSize)) then Continue;
if dwSize>0 then
begin
SetLength(s,dwSize);
move(pp^,s,dwSize);
FmyVersionCategories.add(ts[i]);
FmyVersionStrings.add(s);
end
end;
finally
{ release memory }
FreeMem(p);
end;
finally ts.Free end;
end;
{ get single version string }
function TFileVersionInfo.getVersionSetting(inp : string): String;
var i : integer;
begin
inp:=LowerCase(inp);
for i:= 0 to FmyVersionCategories.Count -1 do
if LowerCase(FmyVersionCategories[i])=inp then
begin
result := FmyVersionStrings[i];
Exit;
end;
result := '';
end;
end.
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