[gtk-server] Re: Calendar Widget

  • From: "Bill Christiansen" <bill.christiansen@xxxxxxxxx>
  • To: gtk-server@xxxxxxxxxxxxx
  • Date: Thu, 12 Apr 2007 22:01:39 +1200

Hi Peter,
I decided to try your tip about newLISP as the other languages I tried
didn't get me any further than with BASH. (I may have been doing it wrong)
Just wondered though if you know of a simple fix for the following

(set 'tmp (gtk_entry_get_text entry))
       (println "This is the contents: " tmp)
       (gtk_window_set_title win " " tmp)

I read the text from a text entry widget and print it to the console as well
as changing the window title  with the same variable which works except if
the string in tmp contains any spaces only the first word goes to the title.

In BASH I could fix that with double and single quotes: "'$tmp'", but that
doesn't work in newLISP.


On 4/8/07, Peter van Eerten <administrator@xxxxxxxxxxxxxx> wrote:

Hi there,

The reason for the '-1' returnvalue is, that you need to add the
prototype of the call 'gtk_calender_get_date' to the configfile of the

I would define it as follows:

FUNCTION_NAME = gtk_calender_get_date, NONE, NONE, 4, WIDGET, LONG, LONG,

However, the last three arguments are in fact pointers to memory, as
you also mention yourself. With BASH I do not see how the memory
pointed to can be read. There are some interpreted languages though,
which can 'read' memory assigned by C-pointers, like Perl, or newLisp.

In most situations, when a signal occurs on the widget, it is possible
to read the data which was sent with the signal. But with the calender
widget also no additional data is sent.

For BASH, as workaround you could write a small C program and compile
it as a binary. When this binary is invoked within a BASH script, it
reads the argument which in fact is the pointer to the address, and it
returns the value kept in this address. But this is probably not what
you want.


Quoting Bill Christiansen <bill.christiansen@xxxxxxxxx>:

> Hi,
> I'm not a very experienced programmer but just giving the Gtk-server,
> Glade combination a try.
> The GUI I made in Glade has a calendar widget and I can retrieve it's
> ID and access it's day_clicked event:
> # Get calendar widget ID and connect signal
> gtk "gtk_server_glade_widget calendar1"
> calendar1_ID=$RESULT
> gtk "gtk_server_connect $calendar1_ID day-selected calendar_clicked"
> But when I try to use get_date I am getting "-1" returned:
> # Initialize EVENT variable
> # Mainloop
> while [[ $EVENT != "main_window" && $EVENT != "button_exit" ]]
> do
>    gtk "gtk_server_callback WAIT"
>    if [[ $EVENT = "calendar_clicked" ]]
>    then
>        gtk "gtk_calendar_get_date $calendar1_ID"
>        text="'$RESULT'"
>        echo $text  # this is printing "-1" on console
>    fi
> done
> It may be that I need to process the $RESULT more as the GTK docs say it
> returns a tuplet of three integers for year month day, but may BASH
> is also limited at this stage, or is it because the calendar widget
needs to
> be setup in the gtk-server.cfg to be usable. Anyone else have experience
> with this widget?
> Regards
> Bill


Other related posts: