### Paragraph Height (PHE)

The PHE is a substructure of the PAP and the PAPX FKP and is also stored in the PLCFPHE.

b10 | b16 | field | type | size | bitfield | comments
0 | 0 | fSpare | short | :1 | 0001 | reserved
|  | fUnk | short | :1 | 0002 | PHE entry is invalid when == 1
|  | fDiffLines | short | :1 | 0004 | when 1, total height of paragraph is known but lines in paragraph have different heights.
|  | * | short | :5 | 00F8 | reserved
|  | clMac | short | :8 | FF00 | when fDiffLines is 0 is number of lines in paragraph
2 | 2 |  | short |  |  | reserved
4 | 4 | dxaCol | long |  |  | width of lines in paragraph
8 | 8 | dymLine | long |  |  | when fDiffLines is 0, is height of every line in paragraph in pixels
8 | 8 | dymHeight | long |  |  | when fDiffLines is 1, is the total height in pixels of the paragraph

If the PHE is stored in a PAP whose fTtp field is set (non-zero), the following structure is used:

b10 | b16 | field | type | size | bitfield | comments
0 | 0 | fSpare | short | :1 | 0001 | reserved
|  | fUnk | short | :1 | 0002 | PHE entry is invalid when == 1
|  | dcpTtpNext | short | :30 |  | if not == 0, used as a hint when finding the next row
4 | 4 | dxaCol | long |  |  |
8 | 8 | dymTableHeight | long |  |  | height of table row

cbPHE (the count of bytes of PHE) is 12.

If there is no paragraph height information stored for a paragraph, all of the fields in the PHE are set to 0. If a paragraph contains more than 127 lines, the clMac, dylLine variant cannot be used, so fDiffLines must be set to 1 and the total size of the paragraph stored in dylHeight. If a paragraph height is greater than 32767 twips, the height cannot be represented by a PHE so all fields of the PHE must be set to 0.

If a new Word file is created, the PHE of every papx fkp entry created to describe the paragraphs of the file should be set to 0. If a Word file is altered in place (a character of the file changed to a new character or a property changed), the paragraph containing the change must have its papx.phe field set to 0. If this paragraph is in a table row, the PHE in the papx at the end of the row (indicated by fInTable) must also be set to 0.

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