private void OnNewWin32Msg(IntPtr hIEWnd, Win32HookMsgEventArgs.HookMsgType type)
{
if (Win32HookMsg != null)
{
Win32HookMsg(this, new Win32HookMsgEventArgs(hIEWnd, type));
}
}
private int GetMsgHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode < 0)
{
return(Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam));
}
else
{
GetMsgHookStruct msgStruct = (GetMsgHookStruct)Marshal.PtrToStructure(lParam, typeof(GetMsgHookStruct));
switch (msgStruct.message)
{
case Win32Api.WM_LBUTTONUP:
case Win32Api.WM_LBUTTONDOWN:
case Win32Api.WM_RBUTTONDOWN:
{
// With WH_GETMESSAGE hooks, it's very important to check for WPARAM equal to PM_REMOVE
// because otherwise you may end up processing the event twice. Windows calls your WH_GETMESSAGE
// hook whenever the app calls ::GetMessage or ::PeekMessage. Many apps call ::PeekMessage to check
// for messages before fetching them, in order to do idle processing between messages. When the
// app calls ::PeekMessage, Windows calls your hook with WPARAM set to PM_NOREMOVE.
if (wParam.ToInt32() == Win32Api.PM_REMOVE)
{
if (Win32Api.IsIEServerOrChild(msgStruct.hwnd))
{
//System.Diagnostics.Trace.WriteLine("OnNewWin32Msg event rised for " + msgStruct.message + " on " + msgStruct.hwnd);
Win32HookMsgEventArgs.HookMsgType msgType = GetMsgType(msgStruct.message);
OnNewWin32Msg(msgStruct.hwnd, msgType);
}
}
break;
}
case Win32Api.WM_KEYDOWN:
{
if (wParam.ToInt32() == Win32Api.PM_REMOVE)
{
if (Win32Api.IsIEServerOrChild(msgStruct.hwnd))
{
OnNewWin32Msg(msgStruct.hwnd, Win32HookMsgEventArgs.HookMsgType.KEY_PRESSED_MSG);
}
}
break;
}
}
return(Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam));
}
}
