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 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 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

Tk                                                     4.0                                            image(3tk)