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Version Info

Posted on 1998-12-15
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Last Modified: 2010-04-04
Ok.  Im using D4.  I want to know what build my app is.  I have Version Info switched on and all that, but I cant extract it from my app.  How the bloody hell do I do it?  I have tried so many components and so much code and nothing has worked yet.

Preeze help....

Stu.
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Question by:Stuart_Johnson
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5 Comments
 
LVL 12

Accepted Solution

by:
rwilson032697 earned 100 total points
ID: 1351223
Use this one - we use it and it works...

http://sunsite.icm.edu.pl/delphi/ftp/d30free/verslab.zip

Cheers,

Raymond.

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LVL 6

Author Comment

by:Stuart_Johnson
ID: 1351224
Its giving me exactly the same errors as I am getting doing it myself using VerQueryValue -  type of actual and formal parameters must be identical.

I think there is differences between D4 and previous version of Delphi, because I cant get it to work.  I've copied just the basic code bits from each example I have gotten (and they are almost all identical).  But I keep getting protection faults.

Can you please test it in D4 and let me know if it works or not, because I have just tried it on several computers here running D4 and none of them compile the component.

I have gone through the unit and fixed the errors, but when I run it I now get a protection fault.

Stu.
0
 
LVL 6

Author Comment

by:Stuart_Johnson
ID: 1351225
Argh!  I fixed it.  All numeric types have to be cardinal.

Works fine now!!  Wonderful!  Thanks.

Stu.
0
 
LVL 12

Expert Comment

by:rwilson032697
ID: 1351226
Here's our copy of the source - it works just fine on D4... (I did make a couple of very minor changes when we changed to D4...)

Cheers,

Raymond.

{
Unit        : verslab.pas
Description : A TCustomLabel derivative that displays Win32 VersionInfo data
Version     : 1.03, 29 July 1997
Status      : Freeware.
Contact     : Marc Evans, marc@leviathn.demon.co.uk

History:
    v1.01   : fixed bug stopping LangCharSet from actually doing anything
                at all on a non-UK system.

    v1.02   : Fixed resource leak bug. (surely there can't be any more? It's
                only 6K!) Thanks to Peter Stromblad for finding it!
                1 July 1997

    v1.03   : Added display of flags, tidied up code. Made LangCharSet
                autodetect. Thanks to Fabrice Marguerie
                (FabriceM@compuserve.com) for the flags code.
                29 July 1997
}

unit verslab;

interface
                         
uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
    TVersionResources = (vrCompanyName, vrFileDescription, vrFileVersion,
                         vrInternalName, vrLegalCopyright, vrOriginalFilename,
                         vrProductName, vrProductVersion, vrComments, vrFlags);

  TVersionLabel = class(TCustomLabel)
  private
    { Private declarations }
    FVersionResource: TVersionResources;
    FInfoPrefix: string;
    FShowInfoPrefix: boolean;
    FVersionResourceKey: string;
    FLangCharset: string;

    procedure SetupInfoPrefix;
    procedure SetupResourceKey;
    function GetStringFileInfo(Buffer: Pchar; size: integer): string;
    function GetFixedFileInfo(Buffer: PChar; size: integer): string;
    function GetInfo: string;
    procedure SetupCaption;
  protected
    { Protected declarations }
    procedure SetInfoPrefix(Value: String);
    function GetInfoPrefix: string;
    procedure SetVersionResource(Value: TVersionResources);
    procedure SetShowInfoPrefix(Value: boolean);
    procedure SetVersionResourceKey(Value: string);
    procedure SetLangCharset(Value: string);
  public
    { Public declarations }
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;

  published
    { Published declarations }
    property VersionResource: TVersionResources read FVersionResource
                                                write SetVersionResource;
    property VersionResourceKey: string read FVersionResourceKey
                                         write SetVersionResourceKey;
    property InfoPrefix: String read GetInfoPrefix write SetInfoPrefix;
    property ShowInfoPrefix: boolean read FShowInfoPrefix write SetShowInfoPrefix;
    property LangCharset: string read FLangCharset write SetLangCharset;
    property WordWrap;
    property Align;
    property Color;
    property Font;
    property AutoSize;
    property Alignment;
    property ParentFont;
  end;

const
    {The order of this array must be the same as the VersionResources
    enum type as that is used for the index lookup}
    VersionLookup: array[TVersionResources, 0..1] of string = (
                    ('CompanyName', 'Company Name:'), {SKIP}
                    ('FileDescription', 'File Description:'), {SKIP}
                    ('FileVersion', 'File Version:'), {SKIP}
                    ('InternalName', 'Internal Name:'), {SKIP}
                    ('LegalCopyright', 'Legal Copyright:'), {SKIP}
                    ('OriginalFilename', 'Original Filename:'), {SKIP}
                    ('ProductName', 'Product Name:'), {SKIP}
                    ('ProductVersion', 'Product Version:'), {SKIP}
                    ('Comments', 'Comments:'), {SKIP}
                    ('Flags', 'Flags:')); {SKIP}

procedure Register;

implementation

{$IFNDEF VER120}
Type
  LongWord = Integer;
{$ENDIF}

procedure Register;
begin
  RegisterComponents('Samples', [TVersionLabel]); {SKIP}
end;

constructor TVersionLabel.Create(AOwner: TComponent);
begin
    inherited Create(AOwner);
    WordWrap := false;
    Autosize := true;
    ShowInfoPrefix := true;
    LangCharset :='-1';   {-1 = auto detect}
    VersionResource := vrFileVersion;
end;

destructor TVersionLabel.Destroy;
begin
    inherited Destroy;
end;

procedure TVersionLabel.SetVersionResource(Value: TVersionResources);
begin
    FVersionResource := Value;
    SetupResourceKey;
    SetupInfoPrefix;
end;

procedure TVersionLabel.SetupInfoPrefix;
var s: string;
begin
    s := VersionLookup[FVersionResource, 1];
    InfoPrefix := s;
end;

procedure TVersionLabel.SetupResourceKey;
var s: string;
begin
    s := VersionLookup[FVersionResource, 0];
    VersionResourceKey := s;
end;

function TVersionLabel.GetFixedFileInfo(Buffer: PChar; size: integer): string;
var
  ValLen: LongWord;
  FixedFileInfo: PVSFixedFileInfo;
begin
    if VerQueryValue(buffer, '\', Pointer(FixedFileInfo), ValLen) then
    begin
        Result := '';
        if (ValLen > 1) then
        begin
            if FixedFileInfo.dwFileFlags and VS_FF_DEBUG <> 0 then
                Result := Result+', Debug Build'; {SKIP}
            if FixedFileInfo.dwFileFlags and VS_FF_PRERELEASE <> 0 then
                Result := Result+', Pre-Release Build'; {SKIP}
            if FixedFileInfo.dwFileFlags and VS_FF_PATCHED <> 0 then
                Result := Result+', Patched Build'; {SKIP}
            if FixedFileInfo.dwFileFlags and VS_FF_PRIVATEBUILD <> 0  then
                Result := Result+', Private Build'; {SKIP}
            if FixedFileInfo.dwFileFlags and VS_FF_INFOINFERRED <> 0  then
                Result := Result+', InfoInferred'; {SKIP}
            if FixedFileInfo.dwFileFlags and VS_FF_SPECIALBUILD <> 0  then
                Result := Result+', Special Build'; {SKIP}

            if result <> '' then
                if Result[1] = ',' then Delete(Result, 1, 2);
        end;
    end
    else Result := '< Error retrieving version info >'; {SKIP}
end;

function TVersionLabel.GetStringFileInfo(Buffer: Pchar; size: integer): string;
var vallen, Translen: LongWord;
    VersionPointer, TransBuffer: pchar;
    Temp: integer;
    CalcLangCharSet: string;
begin
    if FLangCharSet = '-1' then
    begin
        VerQueryValue(buffer, '\VarFileInfo\Translation', {SKIP}
                        pointer(TransBuffer), TransLen);
        if TransLen >= 4 then
        begin
            StrLCopy(@temp, TransBuffer, 2);
            CalcLangCharSet:=IntToHex(temp, 4);
            StrLCopy(@temp, TransBuffer+2, 2);
            CalcLangCharSet := CalcLangCharSet+IntToHex(temp, 4);
            FLangCharSet := CalcLangCharSet;
        end
        else
        begin
            Result := '< Error retrieving translation info >'; {SKIP}
            exit;
        end;
    end;

    if VerQueryValue(buffer, pchar('\StringFileInfo\'+FLangCharSet+'\'+ {SKIP}
                     VersionResourceKey),
                     pointer(VersionPointer), vallen) then
    begin
        if (Vallen > 1) then
        begin
            SetLength(Result, vallen);
            StrLCopy(Pchar(Result), VersionPointer, vallen);
        end
        else Result := '< No Version Info >'; {SKIP}
    end
    else result := '< Error retrieving version info >'; {SKIP}
end;

function TVersionLabel.GetInfo: string;
var dump : LongWord;
    size: integer;
    buffer: pchar;
begin
    if csDesigning in Self.ComponentState then result := '< No design info >' {SKIP}
    else
    begin
        size := GetFileVersionInfoSize(pchar(Application.Exename), dump);
        if  size = 0 then
        begin
            Result := '< No Data Available >'; {SKIP}
        end
        else
        begin
            buffer := StrAlloc(size+1);
            try
                if not GetFileVersionInfo(Pchar(Application.Exename), 0,
                        size, buffer) then
                    result := '< Error retrieving version info >' {SKIP}
                else
                begin
                    if FVersionResource = vrFlags then
                        Result := GetFixedFileInfo(buffer, size)
                    else Result := GetStringFileInfo(buffer, size);
                end;
            finally
                StrDispose(Buffer);
            end;
        end;
    end;
    if ShowInfoPrefix then Result := InfoPrefix+' '+Result;
end;

procedure TVersionLabel.SetInfoPrefix(Value: String);
begin
    if FInfoPrefix = Value then exit;
    FInfoPrefix := Value;
    {The caption needs to be recalculated everytime the prefix is
    changed, otherwise the detaults override the user specified one}
    SetupCaption;
end;

procedure TVersionLabel.SetVersionResourceKey(Value: string);
begin
    if FVersionResourceKey = Value then exit;
    FVersionResourceKey := Value;
    InfoPrefix := Value;
end;

function TVersionLabel.GetInfoPrefix: string;
begin
    result := FInfoPrefix;
end;

procedure TVersionLabel.SetShowInfoPrefix(Value: boolean);
begin
    if FShowInfoPrefix = value then exit;
    FShowInfoPrefix := Value;
    SetupCaption;
end;

procedure TVersionLabel.SetLangCharset(Value: string);
begin
    if FLangCharSet = Value then exit;
    FLangCharSet := Value;
    SetupCaption;
end;

procedure TVersionLabel.SetupCaption;
begin
    Caption := GetInfo;
end;



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LVL 3

Expert Comment

by:philipleighs
ID: 1351227
Let's see the code that gives the compiler error, and the variable declarations.
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