Gtk2::Gdk::Colormap

Section: User Contributed Perl Documentation (3)
Updated: 2008-05-05
Index Return to Main Contents
 

NAME

Gtk2::Gdk::Colormap  

DESCRIPTION

Colormaps are used to store the mappings between the RGB values you ask for and the actual, hardware-dependent values used to display those colors. The "$colormap->alloc_color" and "$colormap->alloc_colors" methods do the necessary work to allocate a color within the visual; this actually has nothing to do with memory management, so it is important that you call "$colormap->free_colors" to release those spots in the colormap allocated by "alloc_color" and "alloc_colors".  

HIERARCHY

  Glib::Object
  +----Gtk2::Gdk::Colormap

 

METHODS

 

colormap = Gtk2::Gdk::Colormap->new ($visual, $allocate)

* $visual (Gtk2::Gdk::Visual)
* $allocate (boolean)
 

boolean = $colormap->alloc_color ($color, $writeable, $best_match)

* $color (Gtk2::Gdk::Color)
* $writeable (boolean)
* $best_match (boolean)
 

list = $colormap->alloc_colors ($writeable, $best_match, ...)

* $writeable (boolean)
* $best_match (boolean)
* ... (list) of Gtk2::Gdk::Color's to be allocated

Returns a list of boolean values, telling whether the color at the corresponding spot in ... could be allocated.

 

$colormap->free_colors (...)

* ... (list) of Gtk2::Gdk::Color's to be freed
 

color = $colormap->query_color ($pixel)

* $pixel (unsigned)
 

$colormap->rgb_find_color ($color)

* $color (Gtk2::Gdk::Color)
 

screen = $cmap->get_screen

Since: gtk+ 2.2
 

colormap = Gtk2::Gdk::Colormap->get_system

 

visual = $colormap->get_visual

 

SEE ALSO

Gtk2, Glib::Object  

COPYRIGHT

Copyright (C) 2003-2008 by the gtk2-perl team.

This software is licensed under the LGPL. See Gtk2 for a full notice.


 

Index

NAME
DESCRIPTION
HIERARCHY
METHODS
colormap = Gtk2::Gdk::Colormap->new ($visual, $allocate)
boolean = $colormap->alloc_color ($color, $writeable, $best_match)
list = $colormap->alloc_colors ($writeable, $best_match, ...)
$colormap->free_colors (...)
color = $colormap->query_color ($pixel)
$colormap->rgb_find_color ($color)
screen = $cmap->get_screen
colormap = Gtk2::Gdk::Colormap->get_system
visual = $colormap->get_visual
SEE ALSO
COPYRIGHT

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