magickGetImageBlob method
Implements direct to memory image formats. It returns the image as a blob
(a formatted "file" in memory), starting from the current
position in the image sequence. Use MagickSetImageFormat() to set the
format to write to the blob (GIF, JPEG, PNG, etc.).
Utilize magickResetIterator()
to ensure the write is from the beginning
of the image sequence.
This method runs inside an isolate different from the main isolate.
Implementation
Future<Uint8List?> magickGetImageBlob() async => await _magickCompute(
_magickGetImageBlob,
_wandPtr.address,
);