"Fast-COM" Implementation Scheme
The image below shows the principal mechanism
how Lisp implements COM support in both "standard Windows COM" mode
and in "Fast-COM" mode, which bypasses the main Windows' COM layer
and its (relatively) slow function resolution, and additionally
omits 2 data conversion steps.
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In result, (vla-get/put-<property>) and (vla-<method>) functions are faster by 50% ...1000% (factor 10) in "Fast-COM" mode. |
