如何获得控件的On属性事件列表?

 用RTTI

uses strutils, rtti, System.typinfo;

{$R *.dfm}

procedure TForm2.FormCreate(Sender: TObject);
var
  context: TRttiContext;
  rType: TRttiType;
  aPropery: trttiproperty;
  LProperty: trttiproperty;
  LField: TRttiField;
var
   i,j: Integer;
  pMethod: TRttiMethod;
  sMethodStr  : String;
  aParameters: System.TArray<System.rtti.TRttiParameter>;
  pParameter: TRttiParameter;
  aParaStr:string;       //参数 名 字符串
  aTypeStr: String;   // 类型 字符串
begin
  context := TRttiContext.Create;
  ListBox1.Items.Clear;
  ListBox2.Items.Clear;
  ListBox3.Items.Clear;
  ListBox4.Items.Clear;
//==================================================================================
  rType := context.GetType(ListBox1.ClassType);
//============== ListBox1.Items.Add(aPropery.ToString);=====================================
  for aPropery in rType.GetProperties do
  begin
     if ( LowerCase( strutils.LeftStr(aPropery.Name,2))='on')       then     //  假设以On开头的属性 都是  事件 Event
    ListBox1.Items.Add(rType.AsInstance.MetaClassType.ClassName + '++' +
      aPropery.Name + '++' + aPropery.PropertyType.ToString);
  end;

//===========  ListBox2.Items.Add(pMethod.ToString);===========================
  for pMethod in rType.GetMethods do
  begin  
    aParameters := pMethod.GetParameters;
   if length( aParameters)=0 then    sMethodStr :=  pMethod.Name  else begin        //没有参数就不加()
    sMethodStr :=  pMethod.Name +'(';
    for i := 0 to High(aParameters) do
    begin
      pParameter := aParameters[i];
      aParaStr := pParameter.Name;  //参数 名 字符串
      aTypeStr := '';

      if pParameter.ParamType <> nil then
       aTypeStr:= GetEnumName(TypeInfo( System.TTypeKind), ord( pParameter.ParamType.TypeKind));      //参数 类型 字符串
      if i > 0 then          sMethodStr := sMethodStr + '; ';
      sMethodStr := sMethodStr + aParaStr + ':' +   aTypeStr;
    end;
     sMethodStr:=sMethodStr+')';
   end;
    if pMethod.ReturnType <> nil then   //根据返回值 确定是 func 还是 procedure
          sMethodStr := 'func '+ sMethodStr+': '+ GetEnumName(TypeInfo( System.TTypeKind), ord( pMethod.ReturnType.TypeKind))
    else  sMethodStr := 'procedure '+ sMethodStr ;
    ListBox2.Items.Add(
//    rType.AsInstance.MetaClassType.ClassName + '++' +
      sMethodStr); // +'++'+LMethod.MethodKind);
  end;

//===================ListBox3.Items.Add(LProperty.ToString);=========================================
  for LProperty in rType.GetProperties do
  begin
    ListBox3.Items.Add(LProperty.ToString);
  end;
//=====================ListBox4.Items.Add(LField.ToString);==========================================
  for LField in rType.GetFields do
  begin
    ListBox4.Items.Add(LField.ToString);
  end;
end;