小弟刚刚学DELPHI，怎么搜索注册表，怎么改注册表啊？

[x64873041]

注册表中的数据名称和数据数值
用什么东西，给个例子

[我不懂电脑]

The following example retrieves a value from a registry entry.

#include <Registry.hpp>

AnsiString GetRegistryValue(AnsiString KeyName)
{
AnsiString S;
TRegistry *Registry = new TRegistry;
try
{
Registry->RootKey = HKEY_LOCAL_MACHINE;
// false because we do not want to create it if it doesn’t exist
Registry->OpenKey(KeyName, false);
S = Registry->ReadString("VALUE1");
}
__finally
{
delete Registry;
}
return S;

}

[x64873041]

没有看懂，能否详细点？

[huojiehai]

unction GetRegistryValue(KeyName: string): string;
var
Registry: TRegistry;
begin
Registry := TRegistry.Create(KEY_READ);
try
Registry.RootKey = HKEY_LOCAL_MACHINE;
// False because we do not want to create it if it doesn't exist
Registry.OpenKey(KeyName, False);
Result := Registry.ReadString('VALUE1');
finally
Registry.Free;
end;
end;

[huojiehai]

This OnClick event handler adds the value specified in the ValueforKey edit box to the registry key specified by the NameofKey edit box. If the named key does not already exist, it creates one. (Note that if you don抰 want to give the user a choice, this could be accomplished more simply by setting the CanCreate parameter of the OpenKey call to true).

procedure TForm1.Button1Click(Sender: TObject);
var
Reg: TRegIniFile;
begin
if Length(NameofKey.Text) or Length(ValueforKey.Text) <=0 then
Showmessage('Either the key name or value is missing.')
else begin
Reg:=TRegIniFile.Create('MyApp');
try
Reg.RootKey:=HKey_Local_Machine; // Section to look for within the registry
if not Reg.OpenKey(NameofKey.Text,False) then
if MessageDlg('The specified key does not exist, create it?'

,Mtinformation,[mbYes,mbNo],0)=mryes then
begin
Reg.CreateKey(NameofKey.Text);
if not Reg.OpenKey(NameofKey.Text,False) then
ShowMessage('Error in Opening Created Key')
else
Reg.WriteString('Main Section','Value1',ValueForKey.Text);
end
else
Reg.WriteString('Main Section','Value1',ValueForKey.Text);
finally

Reg.Free;
end;
end;
end;

[bottom]

to:huojiehai(海天子)
你帮我看看老外的 这个软件要怎么做（关于注册表）
http://www.bwkj.net/bios/down3/regc.exe

[foxmx]

下面程序是读出windows中所有的已安装的程序.你自己看一下,很容易的.
uses Registry;

procedure TForm1.Button1Click(Sender: TObject);
Var list,softList :TStringList;
Reg :TRegistry;
FPath,FKey,SubString:String;
i: integer;
begin
FPath := 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall';
FKey := 'DisplayName';
list := TStringList.Create;
softList := TStringList.Create;
Reg := TRegistry.Create;
try
Reg.RootKey := HKEY_LOCAL_MACHINE;
If Reg.OpenKey(FPath, False) then
Reg.GetKeyNames(List);
List.Sort;
List.BeginUpdate;
Reg.CloseKey;
If Reg.OpenKey(FPath, False) then
Edit1.Text := List[0];
//Edit1.Text := Reg.ReadString('DriverDesc');
Reg.CloseKey;
for i:=0 to List.Count-1 do begin
FPath := 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\'+List[i];
if (Reg.OpenKey(FPath,False)) and (Reg.ReadString(FKey)<>'') then
softList.Add(Reg.ReadString(FKey));
Reg.CloseKey;
end;//end for
finally
Reg.Free; // 用 Try..Finally 结构确保 REG 变量能够释放。
end;
softList.Sort;
ListBox1.Items:=softlist;
end;