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Fixed-Length Multi-Byte Functions
 
 Codes for fixed-length multi-byte functions (240 (0xF0) through 255 (0xFF)) always appear
twice.  The first occurrence is the begin gate, and a second occurrence is the end gate.  The length
of each function is fixed and listed after the function code.
 
 
0xF0Extended Character
 Size = 4
<240 (0xF0)>
[WP character] = (<character> <WP character set number>)
<240 (0xF0)>
 
 0xF1
 Undo
 Size = 5
<241 (0xF1)>
<undo type>
  0 = start of invalid text
  1 = end of invalid text
  2 = start of valid text
  3 = end valid text
[undo level] Internal number used to determine which functions were
inserted or deleted as part of a single operation.  When undo is
performed, everything at the same level is undone.
<241 (0xF1)>
 
 
0xF2Attribute On
 Size = 3
<242 (0xF2)>
<attribute>
  bit 7: 1 = Ignore the attributed text on/off codes.  Used when an
attributed block of text becomes a subset of a larger attribute block
of the same type, such as bolding a sentence that contains a word
already bolded.  Bit 7 of the enclosed Bold On code would be set to 1.
  bit 6: reserved
  bits 0-5: attribute
    0 = extra large (chapter heading)
    1 = very large (heading)
    2 = large (sub-heading)
    3 = small print
    4 = fine print
    5 = superscript
    6 = subscript
    7 = outline
    8 = italics
    9 = shadow
    10 = redline
    11 = double underline
    12 = bold
    13 = strikeout
    14 = underline
    15 = small caps
    16 = blink
    17 = reverse video
<242 (0xF2)>
 
0xF3Attribute Off
 Size = 3
<243 (0xF3)>
<attribute> See Attribute On for description of attributes.
<243 (0xF3)>
 
 
0xF4 - 0xFFReserved - 245 (0xF4) to 255 (0xFF)
 
 
 
| Function | Size |  | 244 (0xF4) | Size = 3 |  | 245 (0xF5) | Size = 3 |  | 246 (0xF6) | Size = 4 |  | 247 (0xF7) | Size = 4 |  | 248 (0xF8) | Size = 4 |  | 249 (0xF9) | Size = 5 |  | 250 (0xFA) | Size = 5 |  | 251 (0xFB) | Size = 6 |  | 252 (0xFC) | Size = 6 |  | 253 (0xFD) | Size = 8 |  | 254 (0xFE) | Size = 8 |  | 255 (0xFF) | Cannot be used.  -1 is reserved so no size is assigned to this
value. |  
 
 
 
 
 
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