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Firebird API

Note the following changes affecting the API

isc_interpret is deprecated

isc_interpret() is deprecated as dangerous. Use fb_interpret() instead.

Events callback routine declaration corrected

The new prototype for isc_callback reflects the actual callback signature. Formerly, it was:

 typedef void (* isc_callback) ();
 ISC_STATUS isc_que_events(
   ISC_STATUS *, isc_db_handle *, ISC_LONG *, short,
   char *, isc_callback, void *);

In the Firebird 2.0 API it is:

 typedef void (*ISC_EVENT_CALLBACK)
   (void*, ISC_USHORT, const ISC_UCHAR*);
 ISC_STATUS isc_que_events(
   ISC_STATUS*, isc_db_handle*, ISC_LONG*, short,
   const ISC_SCHAR*, ISC_EVENT_CALLBACK, void*);

It may cause a compile-time incompatibility, as older event handling programs cannot be compiled if they use a bit different signature for a callback routine (e.g., void* instead of const char* as the last parameter).

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