How to send keys to Notepad?

Here's the simple code to use SendKeys function effectively
to write to a notepad.

Sending text to another program
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Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hWnd As Long, ByVal Msg As Long, wParam As Any, lParam As Any) As Long
Private Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWndParent As Long, ByVal hwndChildAfter As Long, ByVal lpszClass As String, ByVal lpszWindow As String) As Long

Const WM_SETTEXT = 12

Public Sub ToNotePad(x As String)
'assuming notepad is open
Dim h As Long, ed As Long, t As Long
h = FindWindow("Notepad", "Untitled - Notepad")
If (h <> 0) Then
ed = FindWindowEx(h, 0, "Edit", "")
If (ed <> 0) Then
SendMessage ed, WM_SETTEXT, ByVal 0, ByVal x
Else
MsgBox "Could not find notepad's edit"
End If
Else
MsgBox "Could not find notepad"
End If
End Sub

And for WordPad:

Public Sub ToWordPad(x As String)
'assuming wordpad is open
Dim h As Long, ed As Long, t As Long
h = FindWindow("WordPadClass", "Document - WordPad")
If (h <> 0) Then
ed = FindWindowEx(h, 0, "RichEdit20A", "")
If (ed <> 0) Then
SendMessage ed, WM_SETTEXT, ByVal 0, ByVal x
Else
MsgBox "Could not find wordpad's richedit"
End If
Else
MsgBox "Could not find wordpad"
End If
End Sub

- Chaitu