TENumStyles
TENumStyles Obtains a count of style runs in a range of text long rangeStart range start (0 is start of all edit text)
long rangeEnd range end (past end is OK)
returns a count of style changes across the range
The TENumStyles function returns the number of style changes contained in the given range, counting one for the start of the range. Note that this number
does not necessarily represent the number of unique styles for the range
because some styles may be repeated. For unstyled edit records,
TENumStyles returns the count of style changes ( including one for the initial style) existing across the specified range. Use this to calculate the
amount of memory that will be needed in a large TECut or TECopy operation. rangeStart and...
rangeEnd identify which text to examine.
hTE is a handle leading to an edit record created via TENew or The rangeStart and rangeEnd parameters indicate the range. The text containing the range is specified by the hTE parameter, a handle to the
edit record.
You can use TENumStyles to calculate the amount of memory that would be required if TECut or TECopy were called. Since the style scrap record is linear in nature, with one element for each style change, you can multiply the
the amount of memory needed.
Returns: a long integer; the number of style changes across the range.
Notes: The actual amount of memory used by styles in a Cut or Copy