Loading images and icons from ByteArrays

To load images or icons from ByteArrays, use the loadFromByteObjects:- offsetsIntoByteObjects: method.

The following code illustrates how to load a PCX format image from an array of ByteArrays. It assumes that the imageStorage method answers the array of ByteArrays created in the previous example.

| format headerSize byteArrays offsets image |

format := CgPCXFileFormat new.

headerSize := 32.

byteArrays := self imageStorage.

offsets := Array new: byteArrays size.

offsets atAllPut: headerSize.

image := format

loadFromByteObjects: byteArrays

offsetsIntoByteObjects: offsets.

image isNil

ifTrue: [self error: format currentErrorString]

Icons are loaded from ByteArrays in a similar fashion. As with loadFromFile:, the loadFromByteObjects:offsetsIntoByteObjects: method for icon file formats answers an array of CgIcons.