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.