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|
Unit registry;
{$mode objfpc}
{$H+}
interface
{$ifndef windows}
{$define XMLREG}
{$endif}
Uses
{$ifndef XMLREG}
Windows,
{$endif XMLREG}
Classes,
SysUtils,
inifiles;
{$I regdef.inc}
type
ERegistryException = class(Exception);
TRegKeyInfo = record
NumSubKeys: Integer;
MaxSubKeyLen: Integer;
NumValues: Integer;
MaxValueLen: Integer;
MaxDataLen: Integer;
FileTime: TDateTime;
end;
TRegDataType = (rdUnknown, rdString, rdExpandString, rdBinary, rdInteger);
TRegDataInfo = record
RegData: TRegDataType;
DataSize: Integer;
end;
{ ---------------------------------------------------------------------
TRegistry
---------------------------------------------------------------------}
TRegistry = class(TObject)
private
FStringSizeIncludesNull : Boolean;
FSysData : Pointer;
fAccess: LongWord;
fCurrentKey: HKEY;
fRootKey: HKEY;
fLazyWrite: Boolean;
fCurrentPath: string;
procedure SetRootKey(Value: HKEY);
Procedure SysRegCreate;
Procedure SysRegFree;
Function SysGetData(const Name: String; Buffer: Pointer; BufSize: Integer; var RegData: TRegDataType): Integer;
Function SysPutData(const Name: string; Buffer: Pointer; BufSize: Integer; RegData: TRegDataType) : Boolean;
Function SysCreateKey(const Key: String): Boolean;
protected
function GetBaseKey(Relative: Boolean): HKey;
function GetData(const Name: string; Buffer: Pointer;
BufSize: Integer; var RegData: TRegDataType): Integer;
function GetKey(const Key: string): HKEY;
procedure ChangeKey(Value: HKey; const Path: string);
procedure PutData(const Name: string; Buffer: Pointer;
BufSize: Integer; RegData: TRegDataType);
procedure SetCurrentKey(Value: HKEY);
public
constructor Create; overload;
constructor Create(aaccess:longword); overload;
destructor Destroy; override;
function CreateKey(const Key: string): Boolean;
function DeleteKey(const Key: string): Boolean;
function DeleteValue(const Name: string): Boolean;
function GetDataInfo(const ValueName: string; var Value: TRegDataInfo): Boolean;
function GetDataSize(const ValueName: string): Integer;
function GetDataType(const ValueName: string): TRegDataType;
function GetKeyInfo(var Value: TRegKeyInfo): Boolean;
function HasSubKeys: Boolean;
function KeyExists(const Key: string): Boolean;
function LoadKey(const Key, FileName: string): Boolean;
function OpenKey(const Key: string; CanCreate: Boolean): Boolean;
function OpenKeyReadOnly(const Key: string): Boolean;
function ReadCurrency(const Name: string): Currency;
function ReadBinaryData(const Name: string; var Buffer; BufSize: Integer): Integer;
function ReadBool(const Name: string): Boolean;
function ReadDate(const Name: string): TDateTime;
function ReadDateTime(const Name: string): TDateTime;
function ReadFloat(const Name: string): Double;
function ReadInteger(const Name: string): Integer;
function ReadString(const Name: string): string;
function ReadTime(const Name: string): TDateTime;
function RegistryConnect(const UNCName: string): Boolean;
function ReplaceKey(const Key, FileName, BackUpFileName: string): Boolean;
function RestoreKey(const Key, FileName: string): Boolean;
function SaveKey(const Key, FileName: string): Boolean;
function UnLoadKey(const Key: string): Boolean;
function ValueExists(const Name: string): Boolean;
procedure CloseKey;
procedure CloseKey(key:HKEY);
procedure GetKeyNames(Strings: TStrings);
procedure GetValueNames(Strings: TStrings);
procedure MoveKey(const OldName, NewName: string; Delete: Boolean);
procedure RenameValue(const OldName, NewName: string);
procedure WriteCurrency(const Name: string; Value: Currency);
procedure WriteBinaryData(const Name: string; var Buffer; BufSize: Integer);
procedure WriteBool(const Name: string; Value: Boolean);
procedure WriteDate(const Name: string; Value: TDateTime);
procedure WriteDateTime(const Name: string; Value: TDateTime);
procedure WriteFloat(const Name: string; Value: Double);
procedure WriteInteger(const Name: string; Value: Integer);
procedure WriteString(const Name, Value: string);
procedure WriteExpandString(const Name, Value: string);
procedure WriteTime(const Name: string; Value: TDateTime);
property Access: LongWord read fAccess write fAccess;
property CurrentKey: HKEY read fCurrentKey;
property CurrentPath: string read fCurrentPath;
property LazyWrite: Boolean read fLazyWrite write fLazyWrite;
property RootKey: HKEY read fRootKey write SetRootKey;
Property StringSizeIncludesNull : Boolean read FStringSizeIncludesNull;
end;
{ ---------------------------------------------------------------------
TRegIniFile
---------------------------------------------------------------------}
TRegIniFile = class(TRegistry)
private
fFileName : String;
fPath : String;
fPreferStringValues: Boolean;
function OpenSection(const Section: string; CreateSection : Boolean = false): boolean;
procedure CloseSection;
public
constructor Create(const FN: string); overload;
constructor Create(const FN: string;aaccess:longword); overload;
function ReadString(const Section, Ident, Default: string): string;
function ReadInteger(const Section, Ident: string; Default: Longint): Longint;
function ReadBool(const Section, Ident: string; Default: Boolean): Boolean;
function ReadDate(const Section, Ident: string; Default: TDateTime):TDateTime;
function ReadDateTime(const Section, Ident: string; Default: TDateTime):TDateTime;
function ReadTime(const Section, Ident: string; Default: TDateTime):TDateTime;
function ReadFloat(const Section, Ident: string; Default: Double): Double;
procedure WriteString(const Section, Ident, Value: String);
procedure WriteInteger(const Section, Ident: string; Value: Longint);
procedure WriteBool(const Section, Ident: string; Value: Boolean);
procedure WriteDate(const Section, Ident: string; Value: TDateTime);
procedure WriteDateTime(const Section, Ident: string; Value: TDateTime);
procedure WriteTime(const Section, Ident: string; Value: TDateTime);
procedure WriteFloat(const Section, Ident: string; Value: Double);
procedure ReadSection(const Section: string; Strings: TStrings);
procedure ReadSections(Strings: TStrings);
procedure ReadSectionValues(const Section: string; Strings: TStrings);
procedure EraseSection(const Section: string);
procedure DeleteKey(const Section, Ident: String);
property FileName: String read fFileName;
property PreferStringValues: Boolean read fPreferStringValues
write fPreferStringValues;
end;
{ ---------------------------------------------------------------------
TRegIniFile
---------------------------------------------------------------------}
TRegistryIniFile = class(TCustomIniFile)
private
FRegIniFile: TRegIniFile;
public
constructor Create(const AFileName: string); overload;
constructor Create(const AFileName: string; AAccess: LongWord); overload;
function ReadDate(const Section, Name: string; Default: TDateTime): TDateTime; override;
function ReadDateTime(const Section, Name: string; Default: TDateTime): TDateTime; override;
function ReadInteger(const Section, Name: string; Default: Longint): Longint; override;
function ReadFloat(const Section, Name: string; Default: Double): Double; override;
function ReadString(const Section, Name, Default: string): string; override;
function ReadTime(const Section, Name: string; Default: TDateTime): TDateTime; override;
function ReadBinaryStream(const Section, Name: string; Value: TStream): Integer; override;
procedure WriteDate(const Section, Name: string; Value: TDateTime); override;
procedure WriteDateTime(const Section, Name: string; Value: TDateTime); override;
procedure WriteFloat(const Section, Name: string; Value: Double); override;
procedure WriteInteger(const Section, Name: string; Value: Longint); override;
procedure WriteString(const Section, Name, Value: String); override;
procedure WriteTime(const Section, Name: string; Value: TDateTime); override;
procedure WriteBinaryStream(const Section, Name: string; Value: TStream); override;
procedure ReadSection(const Section: string; Strings: TStrings); override;
procedure ReadSections(Strings: TStrings); override;
procedure ReadSectionValues(const Section: string; Strings: TStrings); override;
procedure EraseSection(const Section: string); override;
procedure DeleteKey(const Section, Name: String); override;
procedure UpdateFile; override;
function ValueExists(const Section, Ident: string): Boolean; override;
property RegIniFile: TRegIniFile read FRegIniFile;
end;
ResourceString
SInvalidRegType = 'Invalid registry data type: "%s"';
SRegCreateFailed = 'Failed to create key: "%s"';
SRegSetDataFailed = 'Failed to set data for value "%s"';
SRegGetDataFailed = 'Failed to get data for value "%s"';
var
GlobalXMLFile : Boolean = False;
implementation
{ ---------------------------------------------------------------------
Include implementation-dependent code
---------------------------------------------------------------------}
{$ifdef XMLREG}
{$i xregreg.inc}
{$else}
{$i winreg.inc}
{$endif}
{ ---------------------------------------------------------------------
Generic, implementation-independent code.
---------------------------------------------------------------------}
Constructor TRegistry.Create;
begin
inherited Create;
FAccess := KEY_ALL_ACCESS;
FRootKey := HKEY_CURRENT_USER;
FLazyWrite := True;
FCurrentKey := 0;
SysRegCreate;
end;
Constructor TRegistry.Create(aaccess:longword);
begin
Create;
FAccess := aaccess;
end;
Destructor TRegistry.Destroy;
begin
CloseKey;
SysRegFree;
inherited Destroy;
end;
function TRegistry.CreateKey(const Key: String): Boolean;
begin
Result:=SysCreateKey(Key);
If Not Result Then
Raise ERegistryException.CreateFmt(SRegCreateFailed, [Key]);
end;
function TRegistry.GetBaseKey(Relative: Boolean): HKey;
begin
If Relative and (CurrentKey<>0) Then
Result := CurrentKey
else
Result := RootKey;
end;
function TRegistry.GetData(const Name: String; Buffer: Pointer;
BufSize: Integer; var RegData: TRegDataType): Integer;
begin
Result:=SysGetData(Name,Buffer,BufSize,RegData);
If (Result=-1) then
Raise ERegistryException.CreateFmt(SRegGetDataFailed, [Name]);
end;
procedure TRegistry.PutData(const Name: string; Buffer: Pointer;
BufSize: Integer; RegData: TRegDataType);
begin
If Not SysPutData(Name,Buffer,BufSize,RegData) then
Raise ERegistryException.CreateFmt(SRegSetDataFailed, [Name]);
end;
function TRegistry.GetDataSize(const ValueName: String): Integer;
Var
Info: TRegDataInfo;
begin
If GetDataInfo(ValueName,Info) Then
Result := Info.DataSize
else
Result := -1;
end;
function TRegistry.GetDataType(const ValueName: string): TRegDataType;
Var
Info: TRegDataInfo;
begin
GetDataInfo(ValueName, Info);
Result:=Info.RegData;
end;
Function TRegistry.HasSubKeys: Boolean;
Var
Info : TRegKeyInfo;
begin
Result:=GetKeyInfo(Info);
If Result then
Result:=(Info.NumSubKeys>0);
end;
function TRegistry.ReadBinaryData(const Name: string; var Buffer; BufSize: Integer): Integer;
Var
RegDataType: TRegDataType;
begin
Result := GetData(Name, @Buffer, BufSize, RegDataType);
If (RegDataType<>rdBinary) Then
Raise ERegistryException.CreateFmt(SInvalidRegType, [Name]);
end;
function TRegistry.ReadInteger(const Name: string): Integer;
Var
RegDataType: TRegDataType;
begin
GetData(Name, @Result, SizeOf(Integer), RegDataType);
If RegDataType<>rdInteger Then
Raise ERegistryException.CreateFmt(SInvalidRegType, [Name]);
end;
function TRegistry.ReadBool(const Name: string): Boolean;
begin
Result:=ReadInteger(Name)<>0;
end;
function TRegistry.ReadCurrency(const Name: string): Currency;
begin
ReadBinaryData(Name, Result, SizeOf(Currency));
end;
function TRegistry.ReadDate(const Name: string): TDateTime;
begin
ReadBinaryData(Name, Result, SizeOf(TDateTime));
Result:=Trunc(Result);
end;
function TRegistry.ReadDateTime(const Name: string): TDateTime;
begin
ReadBinaryData(Name, Result, SizeOf(TDateTime));
end;
function TRegistry.ReadFloat(const Name: string): Double;
begin
ReadBinaryData(Name,Result,SizeOf(Double));
end;
function TRegistry.ReadString(const Name: string): string;
Var
Info : TRegDataInfo;
ReadDataSize: Integer;
begin
GetDataInfo(Name,Info);
if info.datasize>0 then
begin
If Not (Info.RegData in [rdString,rdExpandString]) then
Raise ERegistryException.CreateFmt(SInvalidRegType, [Name]);
SetLength(Result,Info.DataSize);
ReadDataSize := GetData(Name,PChar(Result),Info.DataSize,Info.RegData);
if ReadDataSize > 0 then
begin
// If the data has the REG_SZ, REG_MULTI_SZ or REG_EXPAND_SZ type,
// the size includes any terminating null character or characters
// unless the data was stored without them! (RegQueryValueEx @ MSDN)
if StringSizeIncludesNull then
if Result[ReadDataSize] = #0 then
Dec(ReadDataSize);
SetLength(Result, ReadDataSize);
end
else
Result := '';
end
else
result:='';
end;
function TRegistry.ReadTime(const Name: string): TDateTime;
begin
ReadBinaryData(Name, Result, SizeOf(TDateTime));
Result:=Frac(Result);
end;
procedure TRegistry.WriteBinaryData(const Name: string; var Buffer; BufSize: Integer);
begin
PutData(Name, @Buffer, BufSize, rdBinary);
end;
procedure TRegistry.WriteBool(const Name: string; Value: Boolean);
begin
WriteInteger(Name,Ord(Value));
end;
procedure TRegistry.WriteCurrency(const Name: string; Value: Currency);
begin
WriteBinaryData(Name, Value, SizeOf(Currency));
end;
procedure TRegistry.WriteDate(const Name: string; Value: TDateTime);
begin
WriteBinarydata(Name, Value, SizeOf(TDateTime));
end;
procedure TRegistry.WriteTime(const Name: string; Value: TDateTime);
begin
WriteBinaryData(Name, Value, SizeOf(TDateTime));
end;
procedure TRegistry.WriteDateTime(const Name: string; Value: TDateTime);
begin
WriteBinaryData(Name, Value, SizeOf(TDateTime));
end;
procedure TRegistry.WriteExpandString(const Name, Value: string);
begin
PutData(Name, PChar(Value), Length(Value),rdExpandString);
end;
procedure TRegistry.WriteFloat(const Name: string; Value: Double);
begin
WriteBinaryData(Name, Value, SizeOf(Double));
end;
procedure TRegistry.WriteInteger(const Name: string; Value: Integer);
begin
PutData(Name, @Value, SizeOf(Integer), rdInteger);
end;
procedure TRegistry.WriteString(const Name, Value: string);
begin
PutData(Name, PChar(Value), Length(Value), rdString);
end;
procedure TRegistry.MoveKey(const OldName, NewName: string; Delete: Boolean);
begin
end;
{ ---------------------------------------------------------------------
Include TRegIniFile implementation
---------------------------------------------------------------------}
{$i regini.inc}
{ TRegistryIniFile }
// interface from
// http://www.koders.com/delphi/fid65C1FFAEF89B0CDC4B93FF94C1819686CA6141FC.aspx
constructor TRegistryIniFile.Create(const AFileName: string;
AAccess: LongWord);
begin
inherited create(AFilename);
FRegInifile:=TreginiFile.Create(AFileName,AAccess);
end;
constructor TRegistryIniFile.Create(const AFileName: string);
begin
Create(AFileName,KEY_ALL_ACCESS);
end;
procedure TRegistryIniFile.DeleteKey(const Section, Name: String);
begin
FRegIniFile.Deletekey(section,name);
end;
procedure TRegistryIniFile.EraseSection(const Section: string);
begin
FRegIniFile.EraseSection(section);
end;
function TRegistryIniFile.ReadBinaryStream(const Section, Name: string;
Value: TStream): Integer;
begin
result:=-1; // unimplemented
//
end;
function TRegistryIniFile.ReadDate(const Section, Name: string;
Default: TDateTime): TDateTime;
begin
Result:=FRegInifile.ReadDate(Section,Name,Default);
end;
function TRegistryIniFile.ReadDateTime(const Section, Name: string;
Default: TDateTime): TDateTime;
begin
Result:=FRegInifile.ReadDateTime(Section,Name,Default);
end;
function TRegistryIniFile.ReadFloat(const Section, Name: string;
Default: Double): Double;
begin
Result:=FRegInifile.ReadFloat(Section,Name,Default);
end;
function TRegistryIniFile.ReadInteger(const Section, Name: string;
Default: Integer): Longint;
begin
Result:=FRegInifile.ReadInteger(Section, Name, Default);
end;
procedure TRegistryIniFile.ReadSection(const Section: string; Strings: TStrings);
begin
FRegIniFile.ReadSection(Section,strings);
end;
procedure TRegistryIniFile.ReadSections(Strings: TStrings);
begin
FRegIniFile.ReadSections(strings);
end;
procedure TRegistryIniFile.ReadSectionValues(const Section: string;
Strings: TStrings);
begin
FRegIniFile.ReadSectionValues(Section,strings);
end;
function TRegistryIniFile.ReadString(const Section, Name,
Default: string): string;
begin
Result:=FRegInifile.ReadString(Section, Name, Default);
end;
function TRegistryIniFile.ReadTime(const Section, Name: string;
Default: TDateTime): TDateTime;
begin
Result:=FRegInifile.ReadTime(Section,Name,Default);
end;
procedure TRegistryIniFile.UpdateFile;
begin
// FRegIniFile.UpdateFile; ??
end;
procedure TRegistryIniFile.WriteBinaryStream(const Section, Name: string;
Value: TStream);
begin
// ??
end;
procedure TRegistryIniFile.WriteDate(const Section, Name: string;
Value: TDateTime);
begin
FRegInifile.WriteDate(Section,Name, Value);
end;
procedure TRegistryIniFile.WriteDateTime(const Section, Name: string;
Value: TDateTime);
begin
FRegInifile.WriteDateTime(Section,Name, Value);
end;
procedure TRegistryIniFile.WriteFloat(const Section, Name: string;
Value: Double);
begin
FRegInifile.WriteFloat(Section,Name, Value);
end;
procedure TRegistryIniFile.WriteInteger(const Section, Name: string;
Value: Integer);
begin
FRegInifile.WriteInteger(Section, Name, Value);
end;
procedure TRegistryIniFile.WriteString(const Section, Name, Value: String);
begin
FRegInifile.WriteString(Section, Name, Value);
end;
procedure TRegistryIniFile.WriteTime(const Section, Name: string;
Value: TDateTime);
begin
FRegInifile.WriteTime(Section,Name, Value);
end;
function TRegistryIniFile.ValueExists(const Section, Ident: string): Boolean;
begin
with FRegInifile do
if OpenSection(Section) then
try
Result:=FRegInifile.ValueExists(Ident);
finally
CloseSection;
end;
end;
end.
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