Reporting of spelling errors in Microsoft Word causes significant lag

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Reported by mdcurran on 2014-01-17 06:15
If moving the caret around a document in Microsoft Word with report spelling errors turned on (default), there is a noticable lag before the braille display is updated. Turning off reporting of spelling errors definitely reduces the lag.
When collecting text from MS Word, we currently check for a spelling error on every word, which would mean a great deal of calls.
Perhaps we should collect all spelling error offsets at the start and match them as we move through the text by word.

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Comment 1 by Michael Curran <mick@... on 2014-01-17 06:24
In [df1fed5]:

Merge branch 't3785' into next. Incubates #3785

Changes:
Added labels: incubating

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Comment 2 by Michael Curran <mick@... on 2014-01-31 01:56
In [d642ae7]:

Merge branch 't3785'. Fixes #3785

Changes:
Removed labels: incubating
State: closed

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Comment 3 by mdcurran on 2014-01-31 01:58
Changes:
Milestone changed from next to 2014.1

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Comment 4 by Michael Curran <mick@... on 2014-02-02 10:56
In [7ac923a]:

Fix a possible buffer overrun which may have caused a crash in MS Word (picked up by MSVC RTC). Re #3785

VT_BOOL uses 16 bit values, so either VARIANT_BOOL or BOOL should be used. bool (c++) is only 8 bit which is not enough. The rest of calls with VT_BOOL were using BOOL 32 bit.