redhat man page for image

image(n)						       Tk Built-In Commands							  image(n)

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NAME
       image - Create and manipulate images

SYNOPSIS
       image option ?arg arg ...?
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DESCRIPTION
       The image command is used to create, delete, and query images.  It can take several different forms, depending on the option argument.  The
       legal forms are:

       image create type ?name? ?option value ...?
	      Creates a new image and returns its name.  type specifies the type of the image, which must be one of the  types	currently  defined
	      (e.g.,  bitmap).	 name  specifies  the name for the image;  if it is omitted then Tk picks a name of the form imagex, where x is an
	      integer.	There may be any number of option-value pairs, which provide configuration options for the new image.  The  legal  set	of
	      options  is  defined  separately	for  each image type;  see below for details on the options for built-in image types.  If an image
	      already exists by the given name then it is replaced with the new image and any instances of that image will redisplay with the  new
	      contents.  It is important to note that the image command will silently overwrite any procedure that may currently be defined by the
	      given name, so choose the name wisely.  It is  recommended  to  use  a  separate	namespace  for	image  names  (e.g.,  ::img::logo,
	      ::img::large).

       image delete ?name name ...?
	      Deletes each of the named images and returns an empty string.  If there are instances of the images displayed in widgets, the images
	      won't actually be deleted until all of the instances are released.  However, the association between the	instances  and	the  image
	      manager  will be dropped.  Existing instances will retain their sizes but redisplay as empty areas.  If a deleted image is recreated
	      with another call to image create, the existing instances will use the new image.

       image height name
	      Returns a decimal string giving the height of image name in pixels.

       image names
	      Returns a list containing the names of all existing images.

       image type name
	      Returns the type of image name (the value of the type argument to image create when the image was created).

       image types
	      Returns a list whose elements are all of the valid image types (i.e., all of the values that may be supplied for the  type  argument
	      to image create).

       image width name
	      Returns a decimal string giving the width of image name in pixels.

BUILT-IN IMAGE TYPES
       The  following  image  types  are defined by Tk so they will be available in any Tk application.  Individual applications or extensions may
       define additional types.

       bitmap Each pixel in the image displays a foreground color, a background color, or nothing.  See the bitmap manual entry for more  informa-
	      tion.

       photo  Displays a variety of full-color images, using dithering to approximate colors on displays with limited color capabilities.  See the
	      photo manual entry for more information.

KEYWORDS
       height, image, types of images, width

Tk									4.0								  image(n)