Implementing GIF Features

The following features are implemented when loading and saving GIF files:

File Comments

You can get and set comments in GIF files using theRasterCodecs.ReadCommentandRasterCodecs.WriteCommentmethods. In these methods, only theRasterCommentMetadataType.Descriptiontype of comment is supported.

在a multipage file, these methods reference the last comment encountered before the page specified by theCodecsLoadOptions class

在terlaced Files

With an interlaced file, a paint-while-load operation displays the full size of the image as quickly as possible, and then fills in the missing rows. For an example of the paint-while-load code, refer to the RasterCodecs.Compress method.

To save a GIF file as an interlaced file, use theCodecsSaveOptions classto set the在terlacedproperty before saving the file.

Embedded TextIf plain text is embedded in a GIF file, LEADTOOLS rasterizes the text when loading the file, making the text part of the image.

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