Achim Bohnet > Tk-GBARR-1.0401 > Tk::ProgressBar

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Module Version: 1.04   Source  

NAME ^

Tk::ProgressBar - A graphical progress bar

SYNOPSIS ^

    use Tk::ProgressBar;
    
    $progress = $parent->ProgressBar(
        -width => 200,
        -height => 20,
        -from => 0,
        -to => 100,
        -blocks => 10,
        -colors => [0, 'green', 50, 'yellow' , 80, 'red'],
        -variable => \$percent_done
    );

DESCRIPTION ^

Tk::ProgressBar provides a widget which will show a graphical representation of a value, given maximum and minimum reference values.

STANDARD OPTIONS ^

-padx -pady -troughcolor -highlightthickness -borderwidth -relief

WIDGET-SPECIFIC OPTIONS ^

-width

Specifies the desired narrow dimension of the ProgressBar in screen units (i.e. any of the forms acceptable to Tk_GetPixels). For vertical ProgressBars this is the ProgressBars width; for horizontal bars this is the ProgressBars height.

-length

Specifies the desired long dimension of the ProgressBar in screen units (i.e. any of the forms acceptable to Tk_GetPixels). For vertical ProgressBars this is the ProgressBars height; for horizontal scales it is the ProgressBars width.

-colors
-blocks
-resolution

A real value specifying the resolution for the scale. If this value is greater than zero then the scale's value will always be rounded to an even multiple of this value, as will tick marks and the endpoints of the scale. If the value is less than zero then no rounding occurs. Defaults to 1 (i.e., the value will be integral).

-anchor
-variable

Specifies the reference to a scalar variable to link to the ProgressBar. Whenever the value of the variable changes, the ProgressBar will upate to reflect this value. (See also the value method below.)

-from
-to
-gap

WIDGET METHODS ^

$ProgressBar->value(?value?)

If value is omitted, returns the current value of the ProgressBar. If value is given, the value of the ProgressBar is set. If $value is given but undefined the value of the option -from is used.

AUTHOR ^

Graham Barr <gbarr@pobox.com>

COPYRIGHT ^

Copyright (c) 1997-1998 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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