Gtk2::Gdk::Image(3)   User Contributed Perl Documentation  Gtk2::Gdk::Image(3)


NAME
       Gtk2::Gdk::Image - wrapper for GdkImage

DESCRIPTION
       A "Gtk2::Gdk::Image" is a 2-D array of pixel values in client-side
       memory.  It can optionally use shared memory with the X server for fast
       copying to or from a window or pixmap.

       If you're thinking of using this then look at "Gtk2::Gdk::Pixbuf"
       first.  GdkPixbuf has many more features, in particular file read and
       write (PNG, JPEG, etc).  But a GdkImage lets you work directly in pixel
       values instead of expanding to RGB components.

       See Gtk2::Gdk::Drawable for "draw_image", "get_image" and
       "copy_to_image" methods to draw or fetch images to or from a window or
       pixmap.

       The various "get" methods are Gtk 2.22 style.  For previous versions
       they're direct field access.

HIERARCHY
         Glib::Object
         +----Gtk2::Gdk::Image

METHODS
   image or undef = Gtk2::Gdk::Image->new ($type, $visual, $width, $height)
       o   $type (Gtk2::Gdk::ImageType)

       o   $visual (Gtk2::Gdk::Visual)

       o   $width (integer)

       o   $height (integer)

   integer = $image->get_bits_per_pixel
   byteorder = $image->get_byte_order
   integer = $image->get_bytes_per_line
   integer = $image->get_bytes_per_pixel
   colormap = $image->get_colormap
   $image->set_colormap ($colormap)
       o   $colormap (Gtk2::Gdk::Colormap)

   integer = $image->get_depth
   integer = $image->get_height
   imagetype = $image->get_image_type
   unsigned = $image->get_pixel ($x, $y)
       o   $x (integer)

       o   $y (integer)

   string = $image->get_pixels()
       Return a copy of the raw pixel data memory from $image.  This is
       "bytes_per_line * height" many bytes.

   $image->put_pixel ($x, $y, $pixel)
       o   $x (integer)

       o   $y (integer)

       o   $pixel (unsigned)

   visual = $image->get_visual
   integer = $image->get_width

ENUMS AND FLAGS
   enum Gtk2::Gdk::ByteOrder
       o   'lsb-first' / 'GDK_LSB_FIRST'

       o   'msb-first' / 'GDK_MSB_FIRST'

   enum Gtk2::Gdk::ImageType
       o   'normal' / 'GDK_IMAGE_NORMAL'

       o   'shared' / 'GDK_IMAGE_SHARED'

       o   'fastest' / 'GDK_IMAGE_FASTEST'

SEE ALSO
       Gtk2, Glib::Object

COPYRIGHT
       Copyright (C) 2003-2011 by the gtk2-perl team.

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

perl v5.38.0                      2023-07-25               Gtk2::Gdk::Image(3)