// ************************************************************************
// ************************************************************************
// Default filter function
protected int CoreHookProc(int code, IntPtr wParam, IntPtr lParam)
{
if (code < 0)
{
return(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(CallNextHookEx(MHhook, code, wParam, lParam));
}
/// <summary>
/// Handle messages for context menu
/// </summary>
private void WindowsHookInvoked(object sender, HookEventArgs e)
{
var cwp = (Cwpstruct)Marshal.PtrToStructure(e.LParam, typeof(Cwpstruct));
if (_oContextMenu2 != null &&
(cwp.message == (int)Wm.InitMenuPopup ||
cwp.message == (int)Wm.MeasureItem ||
cwp.message == (int)Wm.DrawItem))
{
if (_oContextMenu2.HandleMenuMsg((uint)cwp.message, cwp.wparam, cwp.lparam) == S_OK)
{
return;
}
}
if (_oContextMenu3 == null || cwp.message != (int)Wm.MenuChar)
{
return;
}
if (_oContextMenu3.HandleMenuMsg2((uint)cwp.message, cwp.wparam, cwp.lparam, IntPtr.Zero) == S_OK)
{
}
}
protected void OnHookInvoked(HookEventArgs e)
{
HookInvoked?.Invoke(this, e);
}