使用全局鉤子攔截鼠標事件。停止發生的動作

Question

我試圖攔截並中斷鼠標事件。比方說，我想禁用鼠標右鍵按下事件，甚至鼠標移動事件。我一直無法弄清楚中斷部分。

我正在使用（我假設相當廣泛使用）下面的代碼全局掛鉤的鼠標。

Private Structure MSLLHOOKSTRUCT 
    Public pt As Point 
    Public mouseData As Int32 
    Public flags As Int32 
    Public time As Int32 
    Public extra As IntPtr 
End Structure 

Private _mouseHook As IntPtr 
Private Const WH_MOUSE_LL As Int32 = 14 

Private Delegate Function MouseHookDelegate(ByVal nCode As Int32, ByVal wParam As IntPtr, ByRef lParam As MSLLHOOKSTRUCT) As Int32 
<MarshalAs(UnmanagedType.FunctionPtr)> Private _mouseProc As MouseHookDelegate 
Private Declare Function SetWindowsHookExW Lib "user32.dll" (ByVal idHook As Int32, ByVal HookProc As MouseHookDelegate, ByVal hInstance As IntPtr, ByVal wParam As Int32) As IntPtr 
Private Declare Function UnhookWindowsHookEx Lib "user32.dll" (ByVal hook As IntPtr) As Boolean 
Private Declare Function CallNextHookEx Lib "user32.dll" (ByVal idHook As Int32, ByVal nCode As Int32, ByVal wParam As IntPtr, ByRef lParam As MSLLHOOKSTRUCT) As Int32 
Private Declare Function GetCurrentThreadId Lib "kernel32.dll"() As Integer 
Private Declare Function GetModuleHandleW Lib "kernel32.dll" (ByVal fakezero As IntPtr) As IntPtr 


Public Function HookMouse() As Boolean 
    Debug.Print("Mouse Hooked") 
    If _mouseHook = IntPtr.Zero Then 
     _mouseProc = New MouseHookDelegate(AddressOf MouseHookProc) 
     _mouseHook = SetWindowsHookExW(WH_MOUSE_LL, _mouseProc, GetModuleHandleW(IntPtr.Zero), 0) 
    End If 
    Return _mouseHook <> IntPtr.Zero 
End Function 

Public Sub UnHookMouse() 
    Debug.Print("Mouse UnHooked") 
    If _mouseHook = IntPtr.Zero Then Return 
    UnhookWindowsHookEx(_mouseHook) 
    _mouseHook = IntPtr.Zero 
End Sub 

Private Function MouseHookProc(ByVal nCode As Int32, ByVal wParam As IntPtr, ByRef lParam As MSLLHOOKSTRUCT) As Int32 
    'Debug.Print("Message = {0}, x={1}, y={2}", wParam.ToInt32, lParam.pt.X, lParam.pt.Y) 
    If wParam.ToInt32 = 513 Then 
     '''interrupt the left mouse button event here, but don't know what to return to do so. 
    End If 
    Return CallNextHookEx(WH_MOUSE_LL, nCode, wParam, lParam) 
End Function 

Answer 1

返回1 - 抱歉發佈此內容。