image(n) Tk (4.0) 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.
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).
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image(n) Tk (4.0) image(n)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.
KEYWORDS
height, image, types of images, width
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