Saves multiple images to given stream.
function SaveMultiImageToStream(const Ext: string; Stream: TStream; const Images: TDynImageDataArray): Boolean;
Imaging (at line 143)
If format supports only single level images and there are multiple images to be saved, they are saved one after another to the stream. If function fails stream position is not changed. Ext identifies desired image file format (jpg, png, dds, ...).