请教一个问题： Delphi下如何读写多字符串值(REG_MULTI_SZ类型)的键值?结果定
义为string类型,则使用readstring运行时提示读取的数据类型类型不对。结果定
义为TstringList类型,则使用readstring,编译时提示类型不匹配?请问,如何读写? 我想读取注册表中的IP地址？请问谁能给予指点，谢谢，望尽快
义为string类型,则使用readstring运行时提示读取的数据类型类型不对。结果定
义为TstringList类型,则使用readstring,编译时提示类型不匹配?请问,如何读写? 我想读取注册表中的IP地址？请问谁能给予指点，谢谢，望尽快
http://www.china-askpro.com/msg48/qa05.shtml
你可以参考一下http://www.thedelphimagazine.com/Samples/1655/1655.htm，其中的TForm1.Write_MULTI_SZ_Strings过程是个很好的例子。
uses registry;
const
cCustomLog =
'System\CurrentControlSet\Services\EventLog\Custom';
type
pArray = ^tArray;
tArray = array[0..16383] of char;
procedure TForm1.Write_MULTI_SZ_Strings(const valueName:
string; strings: TStrings);
var
buffer: pArray;
i, size: integer;
TempKey: HKEY;
begin
size := 0;
for i := 0 to strings.count - 1 do
size := size + length(strings[i]) + 1;
inc(size);
GetMem (buffer, size);
fillchar(buffer^, 0, size);
try
size := 0;
for i := 0 to strings.count - 1 do begin
move(strings[i][1],buffer^[size],length(strings[i]));
inc(size, length(strings[i])+1);
end;
inc(size);
if RegOpenKeyEx(HKEY_LOCAL_MACHINE, cCustomLog,
0, KEY_WRITE, TempKey) = ERROR_SUCCESS then
try
if RegSetValueEx(TempKey, PChar(valueName),
0, REG_MULTI_SZ, buffer, size) <> ERROR_SUCCESS then
raise Exception.Create(
'Unable to write MULTI_SZ value');
finally
RegCloseKey(TempKey);
end;
finally
FreeMem (buffer)
end
end;
procedure TForm1.Create_EventLog;
var
size: integer;
s: string;
TempKey: HKEY;
fDisposition: pointer;
fStrings: TStringlist;
begin
fDisposition := nil;
if RegOpenKeyEx(HKEY_LOCAL_MACHINE, cCustomLog,
0, KEY_READ, TempKey) <> ERROR_SUCCESS then begin
if RegCreateKeyEx(HKEY_LOCAL_MACHINE, cCustomLog,
0, nil, REG_OPTION_NON_VOLATILE, KEY_WRITE, nil,
TempKey, fDisposition) = ERROR_SUCCESS then begin
s := '%SystemRoot%\system32\elsx.dll';
size := length(s);
RegSetValueEx (TempKey, 'DisplayNameFile',
0, REG_EXPAND_SZ, pchar(s), size);
// MessageTable string ID in elsx.dll
// Used by Event Viewer
size := 100;
RegSetValueEx (TempKey, 'DisplayNameID',
0, REG_DWORD, @size, sizeof(size));
s := '%SystemRoot%\System32\config\CstEvent.Evt';
size := length(s);
RegSetValueEx (TempKey, 'File', 0, REG_EXPAND_SZ,
pchar(s), size);
size := $80000; // 512kb maximum log file size
//$40000 = 256kb (262144) bytes
RegSetValueEx (TempKey, 'MaxSize', 0, REG_DWORD,
@size, sizeof(size));
s := 'Custom';
size := length(s);
RegSetValueEx (TempKey, 'PrimaryModule', 0, REG_SZ,
pchar(s), size);
// number of seconds to keep messages before
// automatically overwriting
// Overwrite messages 7 or more days old
size := 604800;
// 604800 = 60/secs * 60/mins * 24/hrs * 7/days
// $00000000 - means Overwrite as needed
// $ffffffff - means never Overwrite
RegSetValueEx (TempKey,
'Retention',0,REG_DWORD,@size, sizeof(size));
RegCloseKey(TempKey);
fStrings := TStringlist.create;
// define a known message source
fStrings.add('UsgSoapServer');
Write_MULTI_SZ_Strings('Sources', fStrings);
fStrings.free;
if RegCreateKeyEx(HKEY_LOCAL_MACHINE,
cCustomLog+'\UsgSoapServer',
0, nil, REG_OPTION_NON_VOLATILE, KEY_WRITE,
nil, TempKey, fDisposition) = ERROR_SUCCESS
then begin
s := '%SystemRoot%\system32\elsx.dll';
size := length(s);
RegSetValueEx (TempKey, 'CategoryMessageFile', 0,
REG_EXPAND_SZ, pchar(s), size);
RegSetValueEx (TempKey, 'EventMessageFile', 0,
REG_EXPAND_SZ, pchar(s), size);
size := 4;
RegSetValueEx (TempKey, 'CategoryCount', 0,
REG_DWORD, @size, sizeof(size));
size := 2;
RegSetValueEx (TempKey, 'TypesSupported', 0,
REG_DWORD, @size, sizeof(size));
RegCloseKey(TempKey);
end;
end;
end
else
RegCloseKey(TempKey);
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
Create_EventLog;
// Log a event message just to prove that it works...
with TEventLogger.create('UsgSoapServer') do
try
LogMessage('Stop', EVENTLOG_SUCCESS, $02, $67);
finally
free;
end;
end;