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NAME

crosshair - Crosshairs for Tk canvas

Table Of Contents

SYNOPSIS

package require Tcl ?8.4?
package require Tk ?8.4?
package require crosshair ?1.2.1?

crosshair::crosshair w ?arg...?
crosshair::off w
crosshair::configure w ?arg...?
crosshair::track on w cmdprefix
crosshair::track off w
crosshair::bbox_add w bbox
crosshair::bbox_remove token

DESCRIPTION

The crosshair package provides commands to (de)activate and track crosshairs on canvas widgets.

API

The following commands are exported to the public:

BUGS, IDEAS, FEEDBACK

This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category tklib :: crosshair of the Tcllib SF Trackers. Please also report any ideas for enhancements you may have for either package and/or documentation.

Bugs, Ideas, Feedback

This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category crosshair of the Tklib Trackers. Please also report any ideas for enhancements you may have for either package and/or documentation.

KEYWORDS

canvas, cross-hairs, location, tracking, viewport

COPYRIGHT

Copyright © 2003 Kevin Kenny
Copyright © 2008 (docs) Andreas Kupries
Copyright © 2013 Frank Gover, Andreas Kupries