用VB激活窗口并模拟键盘输入

用VB激活窗口并模拟键盘输入

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_SETTEXT = &HC

Private Sub Command1_Click()
Dim hwnd As Long, Thwnd As Long
Shell "notepad.exe", 2 '打开一个记事本,将它最小化
hwnd = FindWindow("Notepad", "无标题 - 记事本") '得到记事本句柄
Thwnd = FindWindowEx(hwnd, 0, "Edit", vbNullString) '得到记事本句柄(就是我们写字的那里)
SendMessage Thwnd, WM_SETTEXT, 0, ByVal "好了,快给我分" '向记事本写入文字
End Sub