Function

Vipstype_map

Declaration [src] 

void*
vips_type_map (
  GType base,
  VipsTypeMap2Fn fn,
  void* a,
  void* b
)

Description [src]

Map over a type’s children. Stop when fn returns non-NULL and return that value.

This function is not directly available to language bindings.

Parameters

base

Type: GType

Base type.

fn

Type: VipsTypeMap2Fn

Call this function for every type.

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.