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 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 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  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 existing instances will use the new image.

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

       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 argument to image create).

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

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

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 information.

       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.

SEE ALSO

       bitmap(3tk), options(3tk), photo(3tk)

KEYWORDS

       height, image, types of images, width