Function

VipsStartFn

Declaration 

void*
(* VipsStartFn) (
  VipsImage* out,
  void* a,
  void* b
)

Description [src]

Start a new processing sequence for this generate function. This allocates per-thread state, such as an input region.

See also

vips_start_one(), vips_start_many().

Parameters

out

Type: VipsImage

Image being calculated.

The data is owned by the caller of the function.
a

Type: void*

User data.

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

Type: void*

User data.

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

Return value

Type: void*

A new sequence value.

The data is owned by the called function.
The return value can be NULL.