C#打开记事本并填写内容

C#打开记事本并填写内容代码如下：

 
   

  
    using
  
     System.Runtime.InteropServices; 

  
    using
  
     System.Diagnostics; 
 
[DllImport(
  
    "
  
    User32.DLL
  
    "
  
    )] 

  
    public 
  
    static 
  
    extern 
  
    int
  
     SendMessage(IntPtr hWnd, 
 
  
    uint
  
     Msg, 
  
    int
  
     wParam, 
  
    string
  
     lParam); 
[DllImport(
  
    "
  
    User32.DLL
  
    "
  
    )] 

  
    public 
  
    static 
  
    extern
  
     IntPtr FindWindowEx(IntPtr hwndParent, 
 IntPtr hwndChildAfter, 
  
    string
  
     lpszClass, 
  
    string
  
     lpszWindow); 

  
    public 
  
    const 
  
    uint
  
     WM_SETTEXT 
  
    = 
  
    0x000C
  
    ; 

  
    private 
  
    void
  
     button1_Click(
  
    object
  
     sender, EventArgs e) 
{ 
 Process vProcess 
  
    =
  
     Process.Start(
  
    "
  
    notepad.exe
  
    "
  
    ); 
 
  
    while
  
     (vProcess.MainWindowHandle 
  
    ==
  
     IntPtr.Zero) vProcess.Refresh(); 
 IntPtr vHandle 
  
    =
  
     FindWindowEx(vProcess.MainWindowHandle, 
 IntPtr.Zero, 
  
    "
  
    Edit
  
    "
  
    , 
  
    null
  
    ); 
 SendMessage(vHandle, WM_SETTEXT, 
  
    0
  
    , 
  
    "
  
    Zswang 路过
  
    "
  
    ); 
}