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Code:

unit RegExpo;

 

interface

 

uses

  Windows, rRegistry, Classes, SysUtils;

 

{$I-}

{$LONGSTRINGS ON}

 

{

Regexpo

 

Author : Arthur Hoornweg (arthur.hoornweg@email.de)

Version : 1.00, May 1998

O/S : Windows 95, 98, ME, NT, 2000, XP

       Delphi 2+

Function :

   This unit allows you to backup a branch of the registry into a *.REG file,

   that is compatible with "regedit".

   Double-clicking such a file in the explorer will import it.

 

 

Example:

   ExportRegistryBranch(HKEY_LOCAL_MACHINE,'SOFTWARE\Borland\Delphi','A:\DELPHI.REG')

 

(c) 1998 A.M. Hoornweg. All rights reserved.

 

You may use this software for all purposes, both commercial and

noncommercial, as long as proper credit is given. The sourcecode may be distributed

freely, as long as this copyright is included and no more than a marginal fee is

asked.

 

 

Disclaimer:

 

I accept no responsibility whatsoever for any damages caused by these

routines. Use them at your own risk. If you find any bugs, please let me know.

}

 

 

procedure ExportRegistryBranch(Rootsection: Integer; regroot: string;

  FileName: string);

 

implementation

 

function dblBackSlash(t: string): string;

var

  k: longint;

begin

  Result := t; {Strings are not allowed to have}

  for k := Length(t) downto 1 do {single backslashes}

    if Result[k] = '\' then Insert('\', Result, k);

end;

 

 

procedure ExportRegistryBranch(rootsection: Integer; Regroot: string;

  FileName: string);

var

  reg: TRegistry;

  f: Textfile;

  p: PChar;

 

  procedure ProcessBranch(root: string); {recursive sub-procedure}

  var

    values, keys: TStringList;

    i, j, k: longint;

    s, t: string; {longstrings are on the heap, not on the stack!}

  begin

    Writeln(f); {write blank line}

    case rootsection of

      HKEY_CLASSES_ROOT: s   := 'HKEY_CLASSES_ROOT';

      HKEY_CURRENT_USER: s   := 'HKEY_CURRENT_USER';

      HKEY_LOCAL_MACHINE: s  := 'HKEY_LOCAL_MACHINE';

      HKEY_USERS: s          := 'HKEY_USERS';

      HKEY_PERFORMANCE_DATA: s := 'HKEY_PERFORMANCE_DATA';

      HKEY_CURRENT_CONFIG: s := 'HKEY_CURRENT_CONFIG';

      HKEY_DYN_DATA: s       := 'HKEY_DYN_DATA';

    end;

    Writeln(f, '[' + s + '\' + root + ']'); {write section name in brackets}

 

    reg.OpenKey(root, False);

    try

      values := TStringList.Create;

      try

        keys := TStringList.Create;

        try

          reg.GetValuenames(values); {get all value names}

          reg.GetKeynames(keys); {get all sub-branches}

 

          for i := 0 to values.Count - 1 do {write all the values first}

          begin

            s := values[i];

            t := s; {s=value name}

            if s = '' then s := '@' {empty means "default value", write as @}

            else

              s := '"' + s + '"'; {else put in quotes}

            Write(f, dblbackslash(s) + '='); {write the name of the key to the file}

 

            case reg.Getdatatype(t) of {What type of data is it?}

 

              rdString, rdExpandString: {String-type}

                Writeln(f, '"' + dblbackslash(reg.ReadString(t) + '"'));

 

              rdInteger: {32-bit unsigned long integer}

                Writeln(f, 'dword:' + IntToHex(reg.readinteger(t), 8));

 

             {write an array of hex bytes if data is "binary." Perform a line feed

             after approx. 25 numbers so the line length stays within limits}

 

              rdBinary:

                begin

                  Write(f, 'hex:');

                  j := reg.GetDataSize(t); {determine size}

                  GetMem(p, j); {Allocate memory}

                  reg.ReadBinaryData(t, p^, J); {read in the data, treat as pchar}

                  for k := 0 to j - 1 do

                  begin

                    Write(f, IntToHex(Byte(p[k]), 2)); {Write byte as hex}

                    if k <> j - 1 then {not yet last byte?}

                    begin

                      Write(f, ','); {then write Comma}

                      if (k > 0) and ((k mod 25) = 0) {line too long?} then

                        Writeln(f, '\'); {then write Backslash +lf}

                    end; {if}

                  end; {for}

                  FreeMem(p, j); {free the memory}

                  Writeln(f); {Linefeed}

                end;

              else

                Writeln(f, '""'); {write an empty string if datatype illegal/unknown}

            end;{case}

          end; {for}

        finally

          reg.CloseKey;

        end;

 

      finally

        {value names all done, no longer needed}

        values.Free;

      end;

 

      {Now al values are written, we process all subkeys}

      {Perform this process RECURSIVELY...}

      for i := 0 to keys.Count - 1 do

        ProcessBranch(root + '\' + keys[i]);

    finally

      keys.Free; {this branch is ready}

    end;

  end; { ProcessBranch}

 

 

begin

  if RegRoot[Length(Regroot)] = '\' then {No trailing backslash}

    SetLength(regroot, Length(Regroot) - 1);

  Assignfile(f, FileName); {create a text file}

  Rewrite(f);

  if ioResult <> 0 then Exit;

  Writeln(f, 'REGEDIT4'); {"magic key" for regedit}

 

  reg := TRegistry.Create;

  try

    reg.Rootkey := Rootsection;

    {Call the function that writes the branch and all subbranches}

    ProcessBranch(Regroot);

  finally

    reg.Free; {ready}

    Close(f);

  end;

end;

 

end.

 

©Drkb::02299

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