.net – 如何从Windows窗体应用程序中打开记事本并在其中放置一

更新

Process.Start返回一个具有MainWindowHandle属性的Process对象.在上面提到的链接中发送文本而不是FindWindow时使用该句柄.

更新2

一些代码

Const WM_SETTEXT As Integer = &HC
<DllImport("user32.dll")> _
Private Shared Function SendMessage(hWnd As IntPtr,Msg As Integer,wParam As IntPtr,<MarshalAs(UnmanagedType.LPStr)> lParam As String) As IntPtr
End Function

Private Shared Sub Main()
    'ProcessStartInfo is used to instruct the Process class
    ' on how to start a new process. The UseShellExecute tells
    ' the process class that it (amongst other) should search for the application
    ' using the PATH environment variable.
    Dim pis As ProcessStartInfo = New ProcessStartInfo("notepad.exe")
    pis.UseShellExecute = True

    ' The process class is used to start the process
    ' it returns an object which can be used to control the started process
    Dim notepad As Process = Process.Start(pis)

    ' SendMessage is used to send the clipboard message to notepad's
    ' main window.
    Dim textToAdd As String = "Text to add"
    SendMessage(notepad.MainWindowHandle,WM_SETTEXT,IntPtr.Zero,textToAdd)
End Sub