On Mon, Sep 20, 2010 at 08:44:18PM -0700, Wolf Tivy wrote: > [..] > > So does anyone know how to change the mode or something so that we can > get the paired events instead of just 'keypress'? I know this is > possible somewhere because that's how SDL does it.
You want the KeyRelease event. Note that, by default, X11 will generate spurious repeat KeyPress events. Years ago I read the relevant SDL code (which maintains a vector of which keys are currently down) to see if it had a nice way of handling these events. It turns out it just had a heuristic for detecting them and ignoring them; iirc, the synthetic repeat events look like a KeyRelease followed by a KeyPress, where the only difference between the two events is the type (i.e. Release then Press), and the time, which is off by one. These are pushed onto the X event queue simultaneously, so a reliable test is, when encountering KeyRelease, also call XPeekEvent to see if the follow-up KeyPress exists. In this case, the KeyRelease/KeyPress pair can be interpreted as a repeat event, and ignored. This is rather grotesque, and I suggest you look at SDL code to see if there's maybe some shinier way to do it in the newer versions. (I would be happy to hear that I am out of date--I used this 5 years ago.)
