Function

VipsObjectmap

Declaration [src] 

void*
vips_object_map (
  VipsSListMap2Fn fn,
  void* a,
  void* b
)

Description [src]

Call a function for all alive objects. Stop when fn returns non-NULL and return that value.

Parameters

fn VipsSListMap2Fn
 

Function to call for all objects.
a void*
 

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

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

Return value

Returns: 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.