Hello Gary, do I get it right, you want to manupulate/query the labels upon keypresses? Like when the user presses the Up arrow, fetch the text of the first label and print it somewhere? In that case, I’d like to know if you have a GtkApplication with GtkApplicationWindows, or “just” a simple GtkWindow?
For the former, I would go for actions and accels (see gtk_application_set_accels_for_action() and friends), while the former may require catching the ::key-press-event signal. Best, Gergely On 4 September 2014 00:24, Gary Kline <kl...@thought.org> wrote: > ===== > Organization: Thought Unlimited. Public service Unix since 1986. > Of_Interest: With 28 years of service to the Unix community. > > On Wed, Sep 03, 2014 at 10:44:55PM +0200, Marcus Karlsson wrote: >> On Wed, Sep 03, 2014 at 01:13:06PM -0700, Gary Kline wrote: >> > thanks for your input, marcus, but could you give me a few lines of >> > code? I tried using the gtk_label_set_text() for over an hour >> > last night until it felt like my shoulder was going to drop off and >> > fall on the floor! >> >> You should be able to set the text with something like: >> >> gtk_label_set_text (GTK_LABEL (label), "some text"); >> >> But this requires that you have a valid pointer to your label, eiter in >> a global variable or passed to the signal handler as the user_data >> pointer. >> >> > other than usinng "g_signal_connect()" to bail out with a Quit, >> > the only times I see anything to do with a signal are after going >> > GTK_ARROW_UP or _DOWN.... I may have misplaced the >> > gtk_label_get_text() stuff. >> > >> > iv'e got: >> > >> > gtk_label_get_text(GTK_LABEL(user_data), buf ); >> > >> > which now looks aways off... need more clues. >> >> Gtk_label_get_text () returns the string in the return value, so you >> need to to something like: >> >> str = gtk_label_get_text (GTK_LABEL (user_data)); >> >> This of course also requires that the user_data pointer is pointing at a >> label. In your code sample you passed 0 and 1 as the pointers, which >> most likely will not be valid pointers to your labels. >> >> It's often a good idea to group the elements that you need to access >> into an object and pass it as the user_data pointer. A struct would be >> sufficient. This could also include a field which says which label is >> currently selected, for example using and int in the range of 1 to 3. >> >> If you want to reuse the signal handler and still distinguish which >> button caused the signal then you can use the currently unused first >> argument which should point to the sender of the signal, or the button >> which was pressed down. >> >> Marcus > > well, here's the dope: after my 27th cup of french roast, it's all > coming together. *Or*, with a few more hacks, most things will fit. > > still, no one has been able to answer my main question: how, using > the arrow keys, do I attach onto the individual labels? I print > 3 labels to demonstrate what will appear of the window. there > probably will be dozens of strings that will become labels. I > need the up/down arrow keys to select One label. Another part of > the program will speak that string. > > your code examples were helpful. my main snafu was in mixing up > the "GTK_MACROS". The main step is getting the arrow keys to > incicatte--probably with a horizontal line--the right label. > > gary > > > -- > Gary Kline kl...@thought.org http://www.thought.org Public Service Unix > Twenty-eight years of service to the Unix community. > > > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
