1149 X-Windows Screen Dump X11 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’. 165 Georgia Tech Research Institute / Georgia Tech Research Institute 16 Mar 2012 16 Mar 2012 fmt/401 PUID xwd File extension xdm File extension 618 X-Windows Screen Dump X11 Header starts with 4-byte integers: Length (100 [+ filename length]); Version (7); Format (0 - 1-bit XYBitmap, 1 - single-plane XYPixmap, 2 - multi-plane Zpixmap); Depth (1-32); Width; Height; XOffset; Byte Order (0 - least significant byte first, 1 - most significant byte first); Unit Size (8,16,32); Bit Order (0 - least significant bit first, 1 - most significant bit first); Padding Bits (8,16,32); Bits Per Pixel (1-16,24,32); Bytes Per Line; Class (0 - static grey, 1 - grey scale, 2 - static colour, 3 - pseudocolour, 4 - true colour, 5 - direct colour). 1 Absolute from BOF 0 Big-endian 000000??00000007000000(00|01|02)000000[01:20]{12}000000(00|01)000000(08|10|20)000000(00|01)000000(08|10|20)000000(01|02|03|04|05|06|07|08|09|0A|0B|0C|0D|0E|0F|10|18|20){4}000000[00:05]