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


       image - Create and manipulate images

       image option ?arg arg ...?

       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 a command with the same name and returns
	      its name.	 type specifies the type of the image, which  must  be
	      one  of the types currently defined (e.g., bitmap).  name speci‐
	      fies 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,

       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 will not 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 exist‐
	      ing instances will use the new image.

       image height name
	      Returns a decimal string giving the height of image name in pix‐

       image inuse name
	      Returns a boolean value indicating  whether  or  not  the	 image
	      given by name is in use by any widgets.

       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 argu‐
	      ment to image create).

       image width name
	      Returns a decimal string giving the width of image name in  pix‐

       Additional  operations (e.g. writing the image to a file) may be avail‐
       able as subcommands of the image instance command. See the manual  page
       for the particular image type for details.

       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 back‐
	      ground color, or nothing.	 See the bitmap manual entry for  more

       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.

       bitmap(n), options(n), photo(n)

       height, image, types of images, width

Tk				      4.0			      image(n)

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