Retrieve active radio button

[edlynn]

I have a 4 radio buttons set in a group called card_type_button. Can anyone please tell me how i can easily retrieve which of the buttons is active?

[kksou]

Here's a sample code:

[edlynn]

So is what we are saying that in order to determine the active button we must set it at the time the radio button is clicked. We cant just access it at any point after?

[cweiske]

edlynn, yes.

[lcd]

Thank you for the example with the radio buttons in a group.
I have used the example, but have incountered a problem.

When the script starts, the first radio button is selected. But as it has not been clicked, the $value var doesn't contain anything.

If the first radio buttion is the one the user wants to have clicked, the user then have to click on a different radion button, and then click on number one.

I my script the radio buttons are created by filling in data from an array. There might be just one, which then can't be selected, because you can't select something thats already selected.

Is there anyway, not to have any radio buttons selected before the user clicks on one.

lcd

[kksou]

Add a $radio0 button but don't display it.

Sample output:



Sample code:

<?php
$window = new GtkWindow();
$window->set_size_request(400, 200);

$window->connect_simple('destroy', array('Gtk','main_quit'));

$window->add($vbox = new GtkVBox());

// display title
$title = new GtkLabel();
$title->set_markup('<span color="blue" font_desc="Times New Roman Italic 12">
Button Group Demo</span>');
$vbox->pack_start($title);

// setup grouped radio buttons
$radio0 = setup_radio(null, 'radio button 0', '100'); // note 1
$radio1 = setup_radio($radio0, 'radio button 1', '101');
$radio2 = setup_radio($radio0, 'radio button 2', '102');
$radio3 = setup_radio($radio0, 'radio button 3', '103');

// pack them inside vbox
$vbox->pack_start($radio1, 0, 0);
$vbox->pack_start($radio2, 0, 0);
$vbox->pack_start($radio3, 0, 0);

// add a status area
$vbox->pack_start($status_area = new GtkLabel('Click a Button'));

// function to simplify the display of grouped radio buttons
function setup_radio($radio_button_grp, $button_label, $button_value) {
$radio = new GtkRadioButton($radio_button_grp, $button_label);
$radio->connect('toggled', "on_toggle", $button_value);
return $radio;
}

// call-back function when user pressed a radio button
function on_toggle($radio, $value) { // note 5
global $status_area;
$label = $radio->child->get_label(); // note 6
$active = $radio->get_active(); // note 7
print "bp101. $label: $active\n";
if ($active) $status_area->set_text("radio button pressed: $label (value = $value)\n");
#if ($active) $radio->set_active(false);
}

$window->show_all();
Gtk::main();
?>

Regards,
/kksou

[PepsiCrazy]

Hi there,

I have tested your example with radio buttons, with the instructions kksou had left last and it worked great for me.