Tk::Optionmenu - Let the user select one of some predefined options values
use Tk::Optionmenu; $opt = $w->Optionmenu( -options => REFERENCE_to_OPTIONLIST, -command => CALLBACK, -variable => SCALAR_REF, ); $opt->addOptions( OPTIONLIST ); # OPTION LIST is # a) $val1, $val2, $val3,... # b) [ $lab1=>$val1], [$lab2=>val2], ... ] # c) combination of a) and b), e.g., # val1, [$lab2=>val2], val3, val4, [...], ...
The Optionmenu widget allows the user chose between a given set of options.
If the user should be able to change the available option have a look at Tk::BrowseEntry.
(Re)sets the list of options presented.
Defines the callback that is invokes when a new option is selected.
Reference to a scalar that contains the current value of the selected option.
Reference to a scalar that contains the text label of the current value of the selected option.
Adds OPTION_LIST to the already available options.
use Tk; my $mw = MainWindow->new(); my ($var, $tvar); my $opt = $mw->Optionmenu( -options => [[jan=>1], [feb=>2], [mar=>3], [apr=>4]], -command => sub { print "got: ", shift, "\n" }, -variable => \$var, -textvariable => \$tvar )->pack; $opt->addOptions([may=>5],[jun=>6],[jul=>7],[aug=>8]); my $f = $mw->Frame(-relief=>groove, -borderwidth => 2)->pack; $f->Label(-textvariable=>\$tvar)->pack(-side => left); $f->Label(-text => " -> ")->pack(-side => left); $f->Label(-textvariable=>\$var)->pack(-side => left); $mw->Button(-text=>Exit, -command=>sub{$mw->destroy})->pack; MainLoop;
Tk::Menubutton, Tk::BrowseEntry