Gtk2::Gdk::Image(3) User Contributed Perl Documentation Gtk2::Gdk::Image(3)NAMEGtk2::Gdk::ImageDESCRIPTION
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)
· $type (Gtk2::Gdk::ImageType)
· $visual (Gtk2::Gdk::Visual)
· $width (integer)
· $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)
· $colormap (Gtk2::Gdk::Colormap)
integer = $image->get_depth
integer = $image->get_height
imagetype = $image->get_image_type
unsigned = $image->get_pixel ($x, $y)
· $x (integer)
· $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)
· $x (integer)
· $y (integer)
· $pixel (unsigned)
visual = $image->get_visual
integer = $image->get_width
ENUMS AND FLAGS
enum Gtk2::Gdk::ByteOrder
· 'lsb-first' / 'GDK_LSB_FIRST'
· 'msb-first' / 'GDK_MSB_FIRST'
enum Gtk2::Gdk::ImageType
· 'normal' / 'GDK_IMAGE_NORMAL'
· 'shared' / 'GDK_IMAGE_SHARED'
· '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 v5.18.1 2013-09-28 Gtk2::Gdk::Image(3)