Keypressed/Keyreleased events not reaching my code

[Scott Sibley]

I figured this out after some reading.

On Mon, Nov 16, 2009 at 11:28 PM, Scott Sibley <sisibley at gmail.com> wrote:

>
> Hello. I'm writing an LCD controller, and one feature I'd like is the
> ability to interact with an LCD via the keyboard. I have the following code,
> but only the FocusOut/FocusIn events are firing.
>
>
> static Window GetCurrWindow(Display *d) {
>     Window foo;
>     Window win;
>     int bar;
>
>     do{
>         (void) XQueryPointer(d, DefaultRootWindow(d), &foo, &win,
>             &bar, &bar, &bar, &bar, (unsigned int *)&bar);
>     } while(win <= 0);
>     return(win);
> }
>
> void PluginKeyboard::PluginPoll() {
>     Display *dpy = XOpenDisplay(NULL);
>     if(!dpy) {
>         LCDError("PluginKeyboard: Unable to open display.");
>         return;
>     }
>
>     Window w = GetCurrWindow(dpy);
>     XSelectInput(dpy, w, FocusChangeMask|KeyPressMask|KeyReleaseMask);
>     while(started_) {
>
>         if(!XPending(dpy))
>             continue;
>
>         XEvent event;
>         char str[256+1];
>         KeySym ks;
>         char keycode;
>         int c;
>
>         XNextEvent(dpy, &event);
>
>         if(event.type == KeyPress) {
>             c = XLookupString((XKeyEvent *)&event, str, 256, &ks, NULL);
>
>             LCDError("KeyPressed");
>             if(c!=0)
>                 continue;
>
>             keycode = XKeysymToKeycode(dpy, ks);
>
>             emit _KeyPressed(keycode);
>             LCDError("Keypressed: %d", keycode);
>         }
>
>         if(event.type == KeyRelease) {
>             c = XLookupString((XKeyEvent *)&event, str, 256, &ks, NULL);
>
>             if(c!=0)
>                 continue;
>
>             keycode = XKeysymToKeycode(dpy, ks);
>
>             emit _KeyReleased(keycode);
>         }
>
>         if(event.type == FocusOut) {
>             LCDError("FocusOut");
>             XSelectInput(dpy, w = GetCurrWindow(dpy),
>                 FocusChangeMask|KeyPressMask|KeyReleaseMask);
>         }
>
>     }
> }
>
>
>
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