Preventing the resize cursor from appearing.
Deny changes to the width.
You can ask the header to be non-resizing.
Are you even compiling the correct file?
SAFEARRAY reference count as a hidden allocation next to the SAFEARRAY?
The case of "Bring your own SAFEARRAY."
SAFEARRAY after my method returns?
Find a way to take ownership.
SafeArrayAddRef?
You have to use the original pointer, but even that won't be good enough.
SafeArrayAddRef and extending APIs in general
The concerns when adding a feature to an existing API.
SafeArrayAccessData and SafeArrayAddRef?
Two ways of preserving the data.
scope_exit for running code at scope exit. C# says “We have scope_exit at home.”
You can wrap it in an IDisposable.