Linux cli command Tk_Optionmenupm

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command Tk_Optionmenupm and provides detailed information about the command Tk_Optionmenupm, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the Tk_Optionmenupm.

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NAME 🖥️ Tk_Optionmenupm 🖥️

Let the user select one of some predefined options values

SYNOPSIS

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, […], …

DESCRIPTION

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.

OPTIONS

-options
(Re)sets the list of options presented.

-command
Defines the callback that is invokes when a new option is selected.

-variable
Reference to a scalar that contains the current value of the selected option.

-textvariable
Reference to a scalar that contains the text label of the current value of the selected option.

METHODS

addOptions
Adds OPTION_LIST to the already available options.

EXAMPLE

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, " " }, -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;

SEE ALSO

Tk::Menubutton, Tk::BrowseEntry

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