Draging a Window by the Top Level Menu.

Question

Hello I do not know is this is possible, but I create a Window that only have
a Client Area and a Menu Resource.
Is there a way that I can drag a the window by holding the Menu?

I know how to do this on a area of the Window's Client Area, but I wonder if
something similar could be done to a Menu.

Thanks.

Answer 1

Try this -

    case WM_NCHITTEST:
    {
        auto result = DefWindowProc(hWnd, message, wParam, lParam);
        if (result == HTMENU)
        {
            HMENU hBar = GetMenu(hWnd);
            auto x = GET_X_LPARAM(lParam);
            auto y = GET_Y_LPARAM(lParam);
            auto item = MenuItemFromPoint(hWnd, hBar, POINT{ x, y });
            if (item == -1)
                return HTCAPTION;
            else
                return result;
        }
        else
            return result;
    }
    break;

And these are the results -

Answer 2

Hello,

Welcome to Microsoft Q&A!

You could try to use WM_NCHITTEST message. If you want to drag the window by holding the Menu. You could refer to the code:

case WM_NCHITTEST: {
    LRESULT hit = DefWindowProc(hWnd, message, wParam, lParam);
    if (hit == HTMENU) { 
         hit = HTCAPTION;
    }
    return hit;
    break;
}

However, this will make interaction with your application very difficult. You couldn't click the File/Help buttons. So， I couldn't advise you to do that.

Thank you.

Jeanine

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