## Tcl9.0.3/Tk9.0.3 Documentation > Tk Commands > image

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  NAME
    image — 影像の生成と操作 Create and manipulate images
  構文 SYNOPSIS
  説明 DESCRIPTION
    image create type ?name? ?option value ...?
    image delete ?name name ...?
    image height name
    image inuse name
    image names
    image type name
    image types
    image width name
  組込みの影像型 BUILT-IN IMAGE TYPES
    bitmap
    photo
    nsimage
  SEE ALSO
  KEYWORDS

### NAME

image — 影像の生成と操作 Create and manipulate images

### 構文 SYNOPSIS

image option ?arg ...?

### 説明 DESCRIPTION

この image 命令は影像の生成､削除､問合せに使う｡ option 引数に従って幾つかの異なる形式が可能である｡適正な形式は以下の通り: 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 ...?
  新しい影像､及び､それと同じ名前の命令を生成し､その名前を返す｡ type は影像の型を指定し､それは現在定義されているどれか一つでなければならない(譬えば､bitmap)｡ name は影像の名前を指定する; もし省略されると Tk は imagex という名前を撰ぶ､ここで x は整数である｡幾つでも option-value 対が着いてもよく､それは新しい影像の為の構成設定指示項目を与える｡適正な指示項目の揃いはそれぞれの影像の型毎に別々に定義される; 組込まれた影像の型に対する指示項目の詳細は下を参照されたい｡もし与えられた名前の影像が既に実在するとそれは新しい影像に置換えられ､その影像のどの即値も新しい内容により再展示される｡註意すべき重要点は､影像命令は与えられた名前により現在定義されているどの生産物も警告なしに上書きされるので名前は慎重に選択されたい｡影像の名前の為には分離した名前空間の使用を推奨する(譬えば､ ::img::logo, ::img::large) [譯註 type は下の "組込みの影像型 BUILT-IN IMAGE TYPES" 参照]｡ 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 image x, 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 ...?
  指定した名前の影像を削除し空文字列を返す｡もし部品内に展示された影像の即値がある場合､影像は実際は全ての即値が解放されるまで削除されない｡しかしながら､即値と影像管理譜の間の結合はなくなる｡実在する即値はその寸法を保持するが虚の領域に再展示される｡もし削除された影像が他の image create 呼出により再生成されると実在する即値は新しい影像に使用されることになる｡ 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
  name の影像の高さを画像単位で与える十進数を返す｡ Returns a decimal string giving the height of image name in pixels.

image inuse name
  name で与えられる影像がどれかの部品内で使用されているか否かを指し示す論理値を返す｡ Returns a boolean value indicating whether or not the image given by name is in use by any widgets.

image names
  実在する全ての影像の名前を含むリストを返す｡ Returns a list containing the names of all existing images.

image type name
  name の影像の型を返す(影像が生成された時の image create への type 引数の値)｡ Returns the type of image name (the value of the type argument to image create when the image was created).

image types
  全ての適正な影像の型を要素とするリストを返す(即ち､ image create への type 引数の値として与えてもよい全ての適正な値)｡ 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
  name の影像の幅を画像単位で与える十進数を返す｡ Returns a decimal string giving the width of image name in pixels.

追加的な操作(譬えば､ファイルへの影像の書込み)が影像即値の副命令として利用できる｡詳細は取扱説明書の特定の影像の型の頁を参照されたい｡ 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.

### 組込みの影像型 BUILT-IN IMAGE TYPES

次の影像の型が Tk によって定義されているのでどの Tk 応用譜内でも利用できる｡個別の応用譜や拡張は追加の型を定義できる｡ 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
  影像内のそれぞれの画素が前景色､背景色､又は虚を展示する｡更なる詳細は取扱説明書の bitmap の見出しを参照されたい｡ Each pixel in the image displays a foreground color, a background color, or nothing. See the bitmap manual entry for more information.

photo
  種々の総天然色の影像をデイザ技術を使い色の能力の制限内で近似的な色で展示する｡更なる詳細は取扱説明書の photo の見出しを参照されたい｡ 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.

nsimage
  この型はMac OS XのAquaでのみ利用できる｡ This type is only available in the Aqua platform. It is a full-color image which may be created from a named system image. It has options designed to facilitate the use of these images in buttons. An nsimage can be based on an a template image, which is an anti-aliased 2-color image format that automatically interchanges black and white in response to changes between the light and dark modes on macOS. An nsimage can also generate an alternate pressed variant which is lighter in dark mode and darker in light mode. These are for use in image buttons. See the nsimage manual entry for more information.

### SEE ALSO

bitmap, options, photo, nsimage

### KEYWORDS

height, image, types of images, width
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