Reads an image from the metadata if any are available
aType | const type for the image to retrieve (see METADATA_IMAGE_TYPE*) |
aMimeType | Output parameter for mimetype of the image |
aDataLen | Output parameter for length of image data |
aData | Output parameter for binary data of image |
var handler = metadataManager.getHandlerForMediaURL(localPathURI.spec); var mimeTypeOutparam = {}; var outSize = {}; var imageData = handler.getImageData(Ci.sbIMetadataHandler .METADATA_IMAGE_TYPE_FRONTCOVER, mimeTypeOutparam, outSize);