Vba screenupdating false enableevents false calculation xlmanual

19 Jan

VBA and VB6 are basically the same product and execution speed of the actual language seems to be similar.

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One drawback of the C API approach is it that it is not as fault tolerant as the VB/COM approach, the lack of checking that improves performance, also means errors are likely to crash Excel.

Based on the principle that your application should do everything it needs to but no more, it is worth checking the settings of Excel and their potential impact on your code.

By default Excel is set to calculate automatically.

Stability is improved in this case as Excel is protected from problems in the add-in, but communicating between processes is expensive.

COM (Component Object Model), also known as Activex, is a powerful and flexible (and fairly safe) way for pieces of software to communicate with each other.