private IntPtr DropDownHook(int code, IntPtr wparam, IntPtr lparam)
{
if (code == NativeMethods.MSGF_MENU)
{
NativeMethods.MSG msg = (NativeMethods.MSG)Marshal.PtrToStructure(lparam, typeof(NativeMethods.MSG));
Message message = Message.Create(msg.hwnd, msg.message, msg.wParam, msg.lParam);
if (this.DropDownFilter(ref message))
{
return((IntPtr)1);
}
}
return(NativeMethods.CallNextHookEx(this.hookHandle, code, wparam, lparam));
}
// Default filter function
private IntPtr CoreHookProc(int code, IntPtr wParam, IntPtr lParam)
{
if (code < 0)
{
return(NativeMethods.CallNextHookEx(_mHHook, code, wParam, lParam));
}
// Let clients determine what to do
var e = new HookEventArgs
{
HookCode = code,
WParam = wParam,
LParam = lParam
};
OnHookInvoked(e);
// Yield to the next hook in the chain
return(NativeMethods.CallNextHookEx(_mHHook, code, wParam, lParam));
}
