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



NAME
       image - Create and manipulate images

SYNOPSIS
       (image option ?arg arg ...?)


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.

       (image 'delete name ?name name ...?)
              Deletes each of the named images and returns an empty list.  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 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.

       pixmap Displays a color images in X11 pixmap format. See the pixmap
              manual entry for more information.


SEE ALSO
       bitmap, make-image, jpeg, photo, pixmap



STk                                   3.1                             image(n)
