BorderlessGaming.Forms.MainWindow.WndProc C# (CSharp) Method

        protected override void WndProc(ref Message m)
        {
            if (m.Msg == Native.WM_HOTKEY)
            {
                uint keystroke          = ((uint)m.LParam >> 16) & 0x0000FFFF;
                uint keystroke_modifier = ((uint)m.LParam)       & 0x0000FFFF;

                // Global hotkey to make a window borderless
                if ((keystroke == MakeBorderless_HotKey) && (keystroke_modifier == MakeBorderless_HotKeyModifier))
                {
                    // Find the currently-active window
                    IntPtr hCurrentActiveWindow = Native.GetForegroundWindow();

                    // Only if that window isn't Borderless Windows itself
                    if (hCurrentActiveWindow != this.Handle)
                    {
                        // Figure out the process details based on the current window handle
						ProcessDetails pd = controller.Processes.FromHandle(hCurrentActiveWindow);
						if (pd == null)
						{
							Task.WaitAll(controller.RefreshProcesses());
							pd = controller.Processes.FromHandle(hCurrentActiveWindow);
							if (pd == null)
								return;
						}
                        // If we have information about this process -and- we've already made it borderless, then reverse the process
						if (pd.MadeBorderless)
                            Manipulation.RestoreWindow(pd);
                        // Otherwise, this is a fresh request to remove the border from the current window
                        else
							this.controller.RemoveBorder(pd);
                    }

                    return; // handled the message, do not call base WndProc for this message
                }

                if ((keystroke == MouseHide_HotKey) && (keystroke_modifier == MouseHide_HotKeyModifier))
                {
                    Manipulation.ToggleMouseCursorVisibility(this);

                    return; // handled the message, do not call base WndProc for this message
                }

                if ((keystroke == MouseLock_HotKey) && (keystroke_modifier == 0))
                {
                    IntPtr hWnd = Native.GetForegroundWindow();

                    // get size of clientarea
                    Native.RECT rect = new Native.RECT();
                    Native.GetClientRect(hWnd, ref rect);

                    // get top,left point of clientarea
                    Native.POINTAPI p = new Native.POINTAPI { X = 0, Y = 0 };
                    Native.ClientToScreen(hWnd, ref p);

                    Rectangle clipRect = new Rectangle(p.X, p.Y, rect.Right - rect.Left, rect.Bottom - rect.Top);

                    Cursor.Clip = (Cursor.Clip.Equals(clipRect)) ? Rectangle.Empty : clipRect;

                    return; // handled the message, do not call base WndProc for this message
                }
            }

            base.WndProc(ref m);
        }