Re: key press events & holding keys down

[Chris Vine <chris cvine freeserve co uk>]

On Mon, 19 Mar 2012 09:21:27 -0800
Christopher Howard <christopher howard frigidcode com> wrote:
> On 03/19/2012 03:34 AM, Chris Vine wrote:
> > Since GtkWidget objects have key-press-event and a key-release-event
> > signals that you can connect to (and from your explanation, clearly
> > you have connected to), you will probably need to explain why these
> > don't do what you want in order to get a meaningful answer. Most
> > people would monitor these in conjunction with
> > gdk_event_get_keyval() or gdk_event_get_keycode() and keep state.
> >
> > Chris
>
> I'm currently attempting to code a simple space combat game. In my
> game it is possible (quite likely) that two keys will be held down at
> the same time (especially the up arrow and another arrow) e.g. to
> turn and to accelerate at the same time. Currently I monitor for key
> press events as you say; the problem is that key press events are
> only being generated for the last key that was pressed. So if a user
> attempts to turn and accelerate at the same time, he will actually
> only do one or the other, depending on which key he happened to press
> last.

A key remains pressed until a key-release-event for it is received.
That is what I meant by 'keep state'.

Chris