Mega Code Archive
Extracting Version Information
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Title: Extracting Version Information
Question: How can I display some fields from my application's version information?
Answer:
I provide you the object that could be used for extracting version information from executables and libraries.
unit siverinfo;
interface
uses Windows, Classes, SysUtils;
type
TVersionInfo = class(TObject)
private
FData: Pointer;
FSize: Cardinal;
FCompanyName: string;
FFileDescription: string;
FFileVersion: string;
FInternalName: string;
FLegalCopyright: string;
FLegalTrademarks: string;
FOriginalFilename: string;
FProductName: string;
FProductVersion: string;
FComments: string;
public
constructor Create(FileName: string);
destructor Destroy; override;
property CompanyName: string read FCompanyName;
property FileDescription: string read FFileDescription;
property FileVersion: string read FFileVersion;
property InternalName: string read FInternalName;
property LegalCopyright: string read FLegalCopyright;
property LegalTrademarks: string read FLegalTrademarks;
property OriginalFilename: string read FOriginalFilename;
property ProductName: string read FProductName;
property ProductVersion: string read FProductVersion;
property Comments: string read FComments;
end;
implementation
{ TVersionInfo }
constructor TVersionInfo.Create(FileName: string);
var
sz, lpHandle, tbl: Cardinal;
lpBuffer: Pointer;
str: PChar;
strtbl: string;
int: PInteger;
hiW, loW: Word;
begin
inherited Create;
FSize := GetFileVersionInfoSize(PChar(FileName), lpHandle);
FData := AllocMem(FSize);
GetFileVersionInfo(PChar(FileName), lpHandle, FSize, FData);
VerQueryValue(FData, '\\VarFileInfo\Translation', lpBuffer, sz);
int := lpBuffer;
hiW := HiWord(int^);
loW := LoWord(int^);
tbl := (loW shl 16) or hiW;
strtbl := Format('%x', [tbl]);
if Length(strtbl)
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\CompanyName'), lpBuffer, sz);
str := lpBuffer;
FCompanyName := str;
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\FileDescription'), lpBuffer, sz);
str := lpBuffer;
FFileDescription := str;
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\FileVersion'), lpBuffer, sz);
str := lpBuffer;
FFileVersion := str;
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\InternalName'), lpBuffer, sz);
str := lpBuffer;
FInternalName := str;
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\LegalCopyright'), lpBuffer, sz);
str := lpBuffer;
FLegalCopyright := str;
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\LegalTrademarks'), lpBuffer, sz);
str := lpBuffer;
FLegalTrademarks := str;
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\OriginalFilename'), lpBuffer, sz);
str := lpBuffer;
FOriginalFilename := str;
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\ProductName'), lpBuffer, sz);
str := lpBuffer;
FProductName := str;
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\ProductVersion'), lpBuffer, sz);
str := lpBuffer;
FProductVersion := str;
VerQueryValue(FData, PChar('\\StringFileInfo\'+strtbl+'\Comments'), lpBuffer, sz);
str := lpBuffer;
FComments := str;
end;
destructor TVersionInfo.Destroy;
begin
FreeMem(FData);
inherited;
end;
end.
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