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ATxRegistry.pas
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ATxRegistry.pas
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unit ATxRegistry;
interface
uses
Windows;
function SetRegKeyStr(RootKey: HKEY; const SubKey, Name, Value: WideString): Boolean;
function GetRegKeyStr(RootKey: HKEY; const SubKey, Name, Default: WideString): WideString;
implementation
uses
SysUtils;
function CreateRegKeyA(RootKey: HKEY; const SubKey: string): HKEY;
var
Disposition: DWORD;
begin
if RegCreateKeyExA(RootKey, PAnsiChar(AnsiString(SubKey)), 0, nil,
REG_OPTION_NON_VOLATILE, KEY_WRITE, nil,
Result, @Disposition) <> ERROR_SUCCESS
then Result:= 0;
end;
function CreateRegKeyW(RootKey: HKEY; const SubKey: WideString): HKEY;
var
Disposition: DWORD;
begin
if RegCreateKeyExW(RootKey, PWChar(SubKey), 0, nil,
REG_OPTION_NON_VOLATILE, KEY_WRITE, nil,
Result, @Disposition) <> ERROR_SUCCESS
then Result:= 0;
end;
function OpenRegKeyA(RootKey: HKEY; const SubKey: string): HKEY;
begin
if RegOpenKeyExA(RootKey, PAnsiChar(AnsiString(SubKey)), 0, KEY_QUERY_VALUE, Result) <> ERROR_SUCCESS
then Result:= 0;
end;
function OpenRegKeyW(RootKey: HKEY; const SubKey: WideString): HKEY;
begin
if RegOpenKeyExW(RootKey, PWChar(SubKey), 0, KEY_QUERY_VALUE, Result) <> ERROR_SUCCESS
then Result:= 0;
end;
function SetRegKeyStrA(RootKey: HKEY; const SubKey, Name, Value: string): Boolean;
var
h: HKEY;
begin
Result:= False;
h:= CreateRegKeyA(RootKey, SubKey);
if h <> 0 then
begin
Result:= RegSetValueExA(h, PAnsiChar(AnsiString(Name)), 0, REG_SZ, PChar(Value), Length(Value)+1) = ERROR_SUCCESS;
RegCloseKey(h);
end;
end;
function SetRegKeyStrW(RootKey: HKEY; const SubKey, Name, Value: WideString): Boolean;
var
h: HKEY;
begin
Result:= False;
h:= CreateRegKeyW(RootKey, SubKey);
if h <> 0 then
begin
Result:= RegSetValueExW(h, PWChar(Name), 0, REG_SZ, PWChar(Value), (Length(Value)+1)*2) = ERROR_SUCCESS;
RegCloseKey(h);
end;
end;
function SetRegKeyStr(RootKey: HKEY; const SubKey, Name, Value: WideString): Boolean;
begin
if Win32Platform = VER_PLATFORM_WIN32_NT then
Result:= SetRegKeyStrW(RootKey, SubKey, Name, Value)
else
Result:= SetRegKeyStrA(RootKey, SubKey, Name, Value);
end;
function SetRegKeyInt(RootKey: HKEY; const SubKey, Name: WideString; Value: DWORD): Boolean;
var
h: HKEY;
begin
Result:= False;
if Win32Platform = VER_PLATFORM_WIN32_NT then
begin
h:= CreateRegKeyW(RootKey, SubKey);
if h <> 0 then
Result:= RegSetValueExW(h, PWChar(Name), 0, REG_DWORD, @Value, SizeOf(DWORD)) = ERROR_SUCCESS;
end
else
begin
h:= CreateRegKeyA(RootKey, SubKey);
if h <> 0 then
Result:= RegSetValueExA(h, PAnsiChar(AnsiString(Name)), 0, REG_DWORD, @Value, SizeOf(DWORD)) = ERROR_SUCCESS;
end;
RegCloseKey(h);
end;
function SetRegKeyBin(RootKey: HKEY; const SubKey, Name: WideString; DataPtr: pointer; DataSize: DWORD): Boolean;
var
h: HKEY;
begin
Result:= False;
if Win32Platform = VER_PLATFORM_WIN32_NT then
begin
h:= CreateRegKeyW(RootKey, SubKey);
if h <> 0 then
Result:= RegSetValueExW(h, PWChar(Name), 0, REG_BINARY, DataPtr, DataSize) = ERROR_SUCCESS;
end
else
begin
h:= CreateRegKeyA(RootKey, SubKey);
if h <> 0 then
Result:= RegSetValueExA(h, PAnsiChar(AnsiString(Name)), 0, REG_BINARY, DataPtr, DataSize) = ERROR_SUCCESS;
end;
RegCloseKey(h);
end;
function GetRegKeyStrA(RootKey: HKEY; const SubKey, Name, Default: string): string;
var
h: HKEY;
Buffer: PChar;
DataType, DataSize: DWORD;
begin
Result:= Default;
h:= OpenRegKeyA(RootKey, SubKey);
if (RegQueryValueExA(h, PAnsiChar(AnsiString(Name)), nil, @DataType, nil, @DataSize)<>ERROR_SUCCESS)
or (DataType<>REG_SZ) then
begin RegCloseKey(h); Exit end;
GetMem(Buffer, DataSize);
if (RegQueryValueExA(h, PAnsiChar(AnsiString(Name)), nil, @DataType, PByte(Buffer), @DataSize)<>ERROR_SUCCESS)
or (DataType<>REG_SZ) then
begin RegCloseKey(h); Exit end;
Result:= Buffer;
FreeMem(Buffer, DataSize);
RegCloseKey(h);
end;
function GetRegKeyStrW(RootKey: HKEY; const SubKey, Name, Default: WideString): WideString;
var
h: HKEY;
Buffer: PWChar;
DataType, DataSize: DWORD;
begin
Result:= Default;
h:= OpenRegKeyW(RootKey, SubKey);
if (RegQueryValueExW(h, PWChar(Name), nil, @DataType, nil, @DataSize)<>ERROR_SUCCESS)
or (DataType<>REG_SZ) then
begin RegCloseKey(h); Exit end;
GetMem(Buffer, DataSize);
if (RegQueryValueExW(h, PWChar(Name), nil, @DataType, PByte(Buffer), @DataSize)<>ERROR_SUCCESS)
or (DataType<>REG_SZ) then
begin RegCloseKey(h); Exit end;
Result:= Buffer;
FreeMem(Buffer, DataSize);
RegCloseKey(h);
end;
function GetRegKeyStr(RootKey: HKEY; const SubKey, Name, Default: WideString): WideString;
begin
if Win32Platform = VER_PLATFORM_WIN32_NT then
Result:= GetRegKeyStrW(RootKey, SubKey, Name, Default)
else
Result:= GetRegKeyStrA(RootKey, SubKey, Name, Default);
end;
(*
//ANSI versions:
function GetRegKeyInt(RootKey: HKEY; SubKey: PChar; Name: PChar; const Default: DWORD): DWORD;
var
h: HKEY;
DataType, DataSize: DWORD;
begin
DataSize:= SizeOf(DWORD);
h:= OpenRegKey(RootKey, SubKey);
if (RegQueryValueEx(h, Name, nil, @DataType, PByte(@Result), @DataSize)<>ERROR_SUCCESS)
or (DataType<>REG_DWORD)
then Result:= Default;
RegCloseKey(h);
end;
function GetRegKeyBin(RootKey: HKEY; SubKey: PChar; Name: PChar; var DataPtr: pointer; var DataSize: DWORD): boolean;
var
h: HKEY;
DataType: DWORD;
begin
h:= OpenRegKey(RootKey, SubKey);
Result:= (RegQueryValueEx(h, Name, nil, @DataType, PByte(DataPtr), @DataSize)=ERROR_SUCCESS)
and (DataType=REG_BINARY);
if not Result then
begin DataPtr:= nil; DataSize:= 0 end;
RegCloseKey(h);
end;
*)
end.