What does bbSetBlitz3DEventCallback do?

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AKJ

In PureBasic a debug callback routine could look like this:

Procedure MyDebugHandler(msg$)
  MessageRequester("My World Has Collapsed!", "Error: "+msg$)
  bbEndBlitz3D()
  End
EndProcedure

And it is invoked like this:

bbSetBlitz3DDebugCallback(@MyDebugHandler())

The Blitz3D SDK documentation implies that the call to bbEndBlitz3D() can be omitted from the callback routine, but in practice it seems to be needed. The actual wording is:

The Blitz3D runtime is closed before the error handler is invoked by the Blitz3DSDK