Be.Windows.Forms.HexBox.KeyInterpreter.PreProcessWmKeyDown C# (CSharp) Méthode

            public virtual bool PreProcessWmKeyDown(ref Message m)
            {
                //System.Diagnostics.Debug.WriteLine("PreProcessWmKeyDown(ref Message m)", "KeyInterpreter");

                Keys vc = (Keys)m.WParam.ToInt32();

                Keys keyData = vc | Control.ModifierKeys;

                // detect whether key down event should be raised
                var hasMessageHandler = this.MessageHandlers.ContainsKey(keyData);
                if (hasMessageHandler && RaiseKeyDown(keyData))
                    return true;

                MessageDelegate messageHandler = hasMessageHandler
                    ? this.MessageHandlers[keyData]
                    : messageHandler = new MessageDelegate(PreProcessWmKeyDown_Default);

                return messageHandler(ref m);
            }