PMDF User's Guide
OpenVMS Edition

When you read a multipart message, it will be presented to you part by part. Any application, audio, image, or video parts will be displayed or played if possible. When you reach the end of a message part, PMDF MAIL will let you know if there are additional parts. Simply pressing return will read the next part, if any. The NEXT/PART and BACK/PART commands can be used to skip back and forth between message parts.

PMDF MAIL is capable of displaying the application subtypes DDIF and PostScript, both of which it will display with the OpenVMS CDA VIEWER utility. To view other application subtypes, you need to establish your own application viewing command which you then make known to PMDF MAIL with a mailcap file. See Section 8.3.5 for information on mailcap files.

The video subtype MPEG will be displayed using the MPEG_PLAY video viewer. To view other video subtypes, use a mailcap file.

The following image subtypes are recognized and supported by PMDF MAIL:

	° DDIF	° JPEG	° PostScript	° XBM
	° GIF	° PBM	° PPM	° XBITMAP
	° JFIF	° PGM	° TIFF

Note that some of these subtype names are redundant. These subtype names are also accepted if they are preceded with an X-. When these image subtypes are encountered, they will be displayed with the XV image viewer. The only exceptions to this are PostScript and DDIF, which will be displayed with the OpenVMS CDA VIEWER utility. Unrecognized subtypes are displayed with the Xloadimage viewer. Xloadimage supports the following image formats:

	° CMU Window Manager raster files	° PC Paintbrush images (PCX)
	° Faces Project images	° Portable Bitmap images (PBM, PGM, PPM)
	° Fuzzy Bitmap images (FBM)	° Sun monochrome and RGB raster files
	° GIF images	° Utah Raster Toolkit images (RLE)
	° G3 FAX images	° X pixmap files
	° McIDAS area files	° X10 and X11 bitmap files
	° MacPaint images	° X Windows dump files

As with the application type, you can establish your own commands for viewing images with a mailcap file.

Finally, message parts of type/subtype audio/basic will be played by writing the raw data to the SOA0: device, if available. This device is only available on Alpha and VAXstation 4000 workstations. The SET SPEAKER command can be used to select whether the internal or external speaker is used by default. A mailcap file can be used to specify alternate means of replaying audio messages.