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Started by clrscr Dec 10, 2001 at 6:20 PM 0 replies 300+ views

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Dec 10, 2001 at 6:20 PM

Why do some structs want to know there size. For example WNDCLASSEX has a parameter cbSize which is filled out cbSize= sizeof(WNDCLASSEX), now why would that be important?

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Null and Void

Dec 10, 2001 at 7:04 PM

To determine what version of the struct you''re passing it. Future versions may have a few extra members added to the end, so the size will signal that you''re using an older version.

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