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Format

X-Windows Screen Dump File

Download XML

Summary

Name
X-Windows Screen Dump File
Version
X10
Identifiers
  • MIME: image/x-xwindowdump
  • PUID: x-fmt/300
Format type
Image (Raster)
Description
This is an outline record only, and requires further details, research or authentication to provide information that will enable users to further understand the format and to assess digital preservation risks associated with it if appropriate. If you are able to help by supplying any additional information concerning this entry, please return to the main PRONOM page and select ‘Add an Entry’.
File extensions
xdm, xwd
Source
Digital Preservation Department / The National Archives

Internal signatures

X-Windows Screen Dump X10

Note
Header starts with 4-byte integers: Size (40), Version (6), Type, Planes (typically 1 or 3), Format (0 - single-plane XYFormat, 1 - multi-plane Zformat)

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
None
Byte Sequence
0000002800000006{4}000000??000000(00|01)
Endianness
Big-endian

Changelog

  • Added in V58

    Release date
    21 March 2012

    X-Windows Screen Dump File X10: Format name changed for greater accuracy and consistency.

    X-Windows Screen Dump X10: Signature submitted by Georgia Tech Research Institute, USA.