Function

VipsArgumentmap

Declaration [src] 

void*
vips_argument_map (
  VipsObject* object,
  VipsArgumentMapFn fn,
  void* a,
  void* b
)

Description [src]

Loop over the VipsArgument of an object. Stop when fn returns non-NULL and return that value.

Parameters

object

Type: VipsObject

Object whose args should be enumerated.

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

Type: VipsArgumentMapFn

Call this function for every argument.

a

Type: void*

Client data.

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

Type: void*

Client data.

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

Return value

Type: void*

NULL if fn returns NULL for all arguments, otherwise the first non-NULL value from fn.

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