Function

VipsThreadpoolProgressFn

Declaration 

int
(* VipsThreadpoolProgressFn) (
  void* a
)

Description [src]

This function is called by the main thread once for every work unit processed. It can be used to give the user progress feedback.

See also

vips_threadpool_run().

Parameters

a

Type: void*

Client data.

The argument can be NULL.
The data is owned by the caller of the function.

Return value

Type: int

0 on success, or -1 on error.