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.\" ========================================================================
.\"
.IX Title "Gtk2::RadioButton 3pm"
.TH Gtk2::RadioButton 3pm "2019-09-16" "perl v5.28.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Gtk2::RadioButton \- wrapper for GtkRadioButton
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 4
\&  # first group
\&  $foo1 = Gtk2::RadioButton\->new (undef, \*(AqFoo One\*(Aq);
\&  $foo2 = Gtk2::RadioButton\->new ($foo1, \*(AqFoo Two\*(Aq);
\&  $foo3 = Gtk2::RadioButton\->new ($foo2, \*(AqFoo Three\*(Aq);
\&
\&  # second group, using the group reference
\&  $bar1 = Gtk2::RadioButton\->new (undef, \*(AqBar One\*(Aq);
\&  $group = $bar1\->get_group;
\&  $bar2 = Gtk2::RadioButton\->new ($group, \*(AqBar Two\*(Aq);
\&  $bar3 = Gtk2::RadioButton\->new ($group, \*(AqBar Three\*(Aq);
\&
\&  # move bar3 from the bar group to the foo group.
\&  $bar\->set_group ($foo\->get_group);
\&
\&  # iterate over the widgets in the group
\&  $group = $foo1\->get_group;
\&  foreach my $r (@$group) {
\&      $r\->set_sensitive ($whatever);
\&  }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
A single radio button performs the same basic function as a Gtk2::CheckButton,
as its position in the object hierarchy reflects.  It is only when multiple
radio buttons are grouped together that they become a different user interface
component in their own right.
.PP
Every radio button is a member of some group of radio buttons.  When one is
selected, all other radio buttons in the same group are deselected.  A
Gtk2::RadioButton is one way of giving the user a choice from many options;
Gtk2::OptionMenu and Gtk2::ComboBox (added in gtk+ 2.4) are alternatives.
.PP
Each constructor can take either a group or widget from that group where the
group is wanted; this is an enhancement over the C \s-1API.\s0  Nevertheless, the
_from_widget forms are provided for completeness.
.SH "HIERARCHY"
.IX Header "HIERARCHY"
.Vb 10
\&  Glib::Object
\&  +\-\-\-\-Glib::InitiallyUnowned
\&       +\-\-\-\-Gtk2::Object
\&            +\-\-\-\-Gtk2::Widget
\&                 +\-\-\-\-Gtk2::Container
\&                      +\-\-\-\-Gtk2::Bin
\&                           +\-\-\-\-Gtk2::Button
\&                                +\-\-\-\-Gtk2::ToggleButton
\&                                     +\-\-\-\-Gtk2::CheckButton
\&                                          +\-\-\-\-Gtk2::RadioButton
.Ve
.SH "INTERFACES"
.IX Header "INTERFACES"
.Vb 3
\&  Glib::Object::_Unregistered::AtkImplementorIface
\&  Gtk2::Buildable
\&  Gtk2::Activatable
.Ve
.SH "METHODS"
.IX Header "METHODS"
.ie n .SS "widget = Gtk2::RadioButton\->\fBnew\fP ($member_or_listref=undef, $label=undef)"
.el .SS "widget = Gtk2::RadioButton\->\fBnew\fP ($member_or_listref=undef, \f(CW$label\fP=undef)"
.IX Subsection "widget = Gtk2::RadioButton->new ($member_or_listref=undef, $label=undef)"
.IP "\(bu" 4
\&\f(CW$member_or_listref\fR (scalar) reference to radiobutton group or a Gtk2::RadioButton belonging to that group.
.IP "\(bu" 4
\&\f(CW$label\fR (string)
.PP
Create a radio button.  If \fI\f(CI$label\fI\fR is provided, it will be interpreted
as a mnemonic.  If \fI\f(CI$member_or_listref\fI\fR is undef, the radio button will
be created in a new group.
.ie n .SS "widget = Gtk2::RadioButton\->\fBnew_from_widget\fP ($group, $label=undef)"
.el .SS "widget = Gtk2::RadioButton\->\fBnew_from_widget\fP ($group, \f(CW$label\fP=undef)"
.IX Subsection "widget = Gtk2::RadioButton->new_from_widget ($group, $label=undef)"
.IP "\(bu" 4
\&\f(CW$group\fR (Gtk2::RadioButton or undef)
.IP "\(bu" 4
\&\f(CW$label\fR (string)
.ie n .SS "widget = Gtk2::RadioButton\->\fBnew_with_label\fP ($member_or_listref=undef, $label=undef)"
.el .SS "widget = Gtk2::RadioButton\->\fBnew_with_label\fP ($member_or_listref=undef, \f(CW$label\fP=undef)"
.IX Subsection "widget = Gtk2::RadioButton->new_with_label ($member_or_listref=undef, $label=undef)"
.IP "\(bu" 4
\&\f(CW$member_or_listref\fR (scalar) reference to radiobutton group or a Gtk2::RadioButton belonging to that group.
.IP "\(bu" 4
\&\f(CW$label\fR (string)
.PP
Create a radio button with a plain text label, which will not be interpreted
as a mnemonic.
.ie n .SS "widget = Gtk2::RadioButton\->\fBnew_with_label_from_widget\fP ($group, $label=undef)"
.el .SS "widget = Gtk2::RadioButton\->\fBnew_with_label_from_widget\fP ($group, \f(CW$label\fP=undef)"
.IX Subsection "widget = Gtk2::RadioButton->new_with_label_from_widget ($group, $label=undef)"
.IP "\(bu" 4
\&\f(CW$group\fR (Gtk2::RadioButton or undef)
.IP "\(bu" 4
\&\f(CW$label\fR (string)
.ie n .SS "widget = Gtk2::RadioButton\->\fBnew_with_mnemonic\fP ($member_or_listref=undef, $label=undef)"
.el .SS "widget = Gtk2::RadioButton\->\fBnew_with_mnemonic\fP ($member_or_listref=undef, \f(CW$label\fP=undef)"
.IX Subsection "widget = Gtk2::RadioButton->new_with_mnemonic ($member_or_listref=undef, $label=undef)"
.IP "\(bu" 4
\&\f(CW$member_or_listref\fR (scalar) reference to radiobutton group or a Gtk2::RadioButton belonging to that group.
.IP "\(bu" 4
\&\f(CW$label\fR (string)
.PP
Create a radio button with a mnemonic; this is an alias for \f(CW\*(C`new\*(C'\fR.
.ie n .SS "widget = Gtk2::RadioButton\->\fBnew_with_mnemonic_from_widget\fP ($group, $label=undef)"
.el .SS "widget = Gtk2::RadioButton\->\fBnew_with_mnemonic_from_widget\fP ($group, \f(CW$label\fP=undef)"
.IX Subsection "widget = Gtk2::RadioButton->new_with_mnemonic_from_widget ($group, $label=undef)"
.IP "\(bu" 4
\&\f(CW$group\fR (Gtk2::RadioButton or undef)
.IP "\(bu" 4
\&\f(CW$label\fR (string)
.ie n .SS "arrayref = $radio_button\->\fBget_group\fP"
.el .SS "arrayref = \f(CW$radio_button\fP\->\fBget_group\fP"
.IX Subsection "arrayref = $radio_button->get_group"
Return a reference to the radio group to which \fI\f(CI$radio_button\fI\fR belongs.
The group is a reference to an array of widget references; the array is \fBnot\fR
magical, that is, it will not be updated automatically if the group changes;
call \f(CW\*(C`get_group\*(C'\fR each time you want to use the group.
.ie n .SS "$radio_button\->\fBset_group\fP ($member_or_listref)"
.el .SS "\f(CW$radio_button\fP\->\fBset_group\fP ($member_or_listref)"
.IX Subsection "$radio_button->set_group ($member_or_listref)"
.IP "\(bu" 4
\&\f(CW$member_or_listref\fR (scalar) reference to the group or a Gtk2::RadioButton belonging to that group.
.PP
Assign \fI\f(CI$radio_button\fI\fR to a new group.
.SH "PROPERTIES"
.IX Header "PROPERTIES"
.IP "'group' (Gtk2::RadioButton : default undef : writable / private)" 4
.IX Item "'group' (Gtk2::RadioButton : default undef : writable / private)"
The radio button whose group this widget belongs to.
.SH "SIGNALS"
.IX Header "SIGNALS"
.IP "\fBgroup-changed\fR (Gtk2::RadioButton)" 4
.IX Item "group-changed (Gtk2::RadioButton)"
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Gtk2, Glib::Object, Glib::InitiallyUnowned, Gtk2::Object, Gtk2::Widget, Gtk2::Container, Gtk2::Bin, Gtk2::Button, Gtk2::ToggleButton, Gtk2::CheckButton
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (C) 2003\-2011 by the gtk2\-perl team.
.PP
This software is licensed under the \s-1LGPL.\s0  See Gtk2 for a full notice.