灌水 这个怎么弄成C++的

mumu940307

Option Explicit
Private Declare Function PostMessage Lib "USER32" Alias "PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function MapVirtualKey Lib "USER32" Alias "MapVirtualKeyA" (ByVal wCode As Long, ByVal wMapType As Long) As Long
Private Const WM_KEYDOWN = &H100
Private Const WM_KEYUP = &H101
Private Const WM_CHAR = &H102
'//构造扫描码
Private Function MakeKeyLparam(ByVal VirtualKey As Long, ByVal flag As Long) As Long
     Dim s As String
     Dim Firstbyte As String     'lparam参数的24-31位
     If flag = WM_KEYDOWN Then   '如果是按下键
         Firstbyte = "00"
     Else
         Firstbyte = "C0"        '如果是释放键
     End If
     Dim Scancode As Long
     '获得键的扫描码
     Scancode = MapVirtualKey(VirtualKey, 0)
     Dim Secondbyte As String    'lparam参数的16-23位，即虚拟键扫描码
     Secondbyte = right("00" & Hex(Scancode), 2)
     s = Firstbyte & Secondbyte & "0001"   '0001为lparam参数的0-15位，即发送次数和其它扩展信息
     MakeKeyLparam = Val("&H" & s)
End Function
Public Function PostKeyDown(wHandle As Long, KeyCode As Long) '//发送按键
     PostMessage wHandle, WM_KEYDOWN, KeyCode, MakeKeyLparam(KeyCode, WM_KEYDOWN) '按下某键
End Function
Public Function PostKeyUp(wHandle As Long, KeyCode As Long) '//发送按键
     PostMessage wHandle, WM_KEYUP, KeyCode, MakeKeyLparam(KeyCode, WM_KEYUP)    '释放某键
End Function