Vips.Blob¶

Fields¶

Name	Type	Access	Description
area	`Vips.Area`	r/w

Methods¶

class	`copy` (data)
class	`new` (free_fn, data)
	`get` ()
	`set` (free_fn, data)

Details¶

class Vips.Blob¶

classmethod copy(data)¶

Parameters:: data (bytes) – data to store
Returns:: the new [struct`Blob`].
Return type:: Vips.Blob

Like [ctor`Blob`.new], but take a copy of the data. Useful for bindings which struggle with callbacks.

::: seealso [ctor`Blob`.new].

classmethod new(free_fn, data)¶

Parameters:

free_fn (Vips.CallbackFn or None) – data will be freed with this function
data (bytes) – data to store

Returns:

the new [struct`Blob`].

Return type:

Vips.Blob

Like [ctor`Area`.new], but track a length as well. The returned [struct`Blob`] takes ownership of data and will free it with free_fn. Pass NULL for free_fn to not transfer ownership.

An area of mem with a free func and a length (some sort of binary object, like an ICC profile).

::: seealso [method`Area`.unref].

get()¶

Returns:: the data
Return type:: bytes

Get the data from a [struct`Blob`].

::: seealso [ctor`Blob`.new].

set(free_fn, data)¶

Parameters:

free_fn (Vips.CallbackFn or None) – data will be freed with this function
data (bytes) – data to store

Any old data is freed and new data attached.

It’s sometimes useful to be able to create blobs as empty and then fill them later.

::: seealso [ctor`Blob`.new].