[Chapter 22] ImageProducer

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| Chapter 22 java.awt.image Reference |  |

# ImageProducer

## Name

ImageProducer

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## Description

`ImageProducer` is an interface that provides the methods necessary for the production of images and the communication with classes that implement the `ImageConsumer` interface.

## Interface Definition

    public abstract interface java.awt.image.ImageProducer {
      // Interface Methods
      public abstract void addConsumer (ImageConsumer ic);
      public abstract boolean isConsumer (ImageConsumer ic);
      public abstract void removeConsumer (ImageConsumer ic);
      public abstract void requestTopDownLeftRightResend (ImageConsumer ic);
      public abstract void startProduction (ImageConsumer ic);
    }

## Interface Methods

### addConsumer

#### public abstract void addConsumer (ImageConsumer ic)

Parameters

  ic

    An `ImageConsumer` that wants to receive image data.

Description

  Registers an `ImageConsumer` as interested in image information.

### isConsumer

#### public abstract boolean isConsumer (ImageConsumer ic)

Parameters

  ic

    `ImageConsumer` to check.

Returns

  `true` if `ImageConsumer` has registered with the `ImageProducer`, `false` otherwise.

### removeConsumer

#### public abstract void removeConsumer (ImageConsumer ic)

Parameters

  ic

    `ImageConsumer` to remove.

Description

  Removes an `ImageConsumer` from registered consumers for this `ImageProducer`.

### requestTopDownLeftRightResend

#### public abstract void requestTopDownLeftRightResend (ImageConsumer ic)

Parameters

  ic

    `ImageConsumer` to communicate with.

Description

  Requests the retransmission of the image data in top-down, left-to-right order.

### startProduction

#### public abstract void startProduction (ImageConsumer ic)

Parameters

  ic

    ImageConsumer to communicate with.

Description

  Registers `ImageConsumer` as interested in image information and tells `ImageProducer` to start sending the image data immediately.

## See Also

`FilteredImageSource`, `Image`, `ImageConsumer`, `ImageFilter`, `MemoryImageSource`, `Object`

ImageObserver |  |  | IndexColorModel