我这个怎么改才能在当前窗口中打开

Option Explicit
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Const WM_GETTEXT = &HD
'函数申明
Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, _
ByVal lpoperation As String, ByVal lpfile As String, ByVal lpparameters As String, _
ByVal lpdirectory As String, ByVal nshowcmd As Long) As Long


Private Sub Command1_Click()
Dim lngReturn As Long
lngReturn = ShellExecute(Me.hwnd, "open", "http://www.baidu.com", "", "", 0)

End Sub

何谓“当前窗口打开”？是不是直接用webbrowser控件的效果？