Copyright	Will Thompson and Iñaki García Etxebarria
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria
Safe Haskell	Safe-Inferred
Language	Haskell2010

GI.Vips.Structs.Blob

Contents

Exported types
Methods
- copy
- get
- new
Properties
- area

Description

No description available in the introspection data.

Synopsis

newtype Blob = Blob (ManagedPtr Blob)
newZeroBlob :: MonadIO m => m Blob
blobCopy :: (HasCallStack, MonadIO m) => ByteString -> m Blob
blobGet :: (HasCallStack, MonadIO m) => Blob -> m ByteString
blobNew :: (HasCallStack, MonadIO m) => Maybe CallbackFn -> ByteString -> m Blob
getBlobArea :: MonadIO m => Blob -> m Area

Exported types

newtype Blob Source #

Memory-managed wrapper type.

Constructors

Blob (ManagedPtr Blob)

Instances

Instances details

Eq Blob Source #
Instance details Defined in GI.Vips.Structs.Blob Methods (==) :: Blob -> Blob -> Bool # (/=) :: Blob -> Blob -> Bool #
GBoxed Blob Source #
Instance details Defined in GI.Vips.Structs.Blob
ManagedPtrNewtype Blob Source #
Instance details Defined in GI.Vips.Structs.Blob Methods toManagedPtr :: Blob -> ManagedPtr Blob #
TypedObject Blob Source #
Instance details Defined in GI.Vips.Structs.Blob Methods glibType :: IO GType #
HasParentTypes Blob Source #
Instance details Defined in GI.Vips.Structs.Blob
tag ~ 'AttrSet => Constructible Blob tag Source #
Instance details Defined in GI.Vips.Structs.Blob Methods new :: MonadIO m => (ManagedPtr Blob -> Blob) -> [AttrOp Blob tag] -> m Blob #
IsGValue (Maybe Blob) Source #	Convert `Blob` to and from `GValue`. See `toGValue` and `fromGValue`.
Instance details Defined in GI.Vips.Structs.Blob Methods gvalueGType_ :: IO GType # gvalueSet_ :: Ptr GValue -> Maybe Blob -> IO () # gvalueGet_ :: Ptr GValue -> IO (Maybe Blob) #
type ParentTypes Blob Source #
Instance details Defined in GI.Vips.Structs.Blob type ParentTypes Blob = '[] :: [Type]

newZeroBlob :: MonadIO m => m Blob Source #

Construct a Blob struct initialized to zero.

Methods

Click to display all available methods, including inherited ones

Expand

Methods

get.

Getters

None.

Setters

None.

copy

blobCopy Source #

Arguments

:: (HasCallStack, MonadIO m)
=> ByteString	`data`: data to store
-> m Blob	Returns: the new `Blob`.

Like blobNew, but take a copy of the data. Useful for bindings which strugle with callbacks.

get

blobGet Source #

Arguments

:: (HasCallStack, MonadIO m)
=> Blob	`blob`: `Blob` to fetch from
-> m ByteString	Returns: the data

Get the data from a Blob.

new

blobNew Source #

Arguments

:: (HasCallStack, MonadIO m)
=> Maybe CallbackFn	`freeFn`: `data` will be freed with this function
-> ByteString	`data`: data to store
-> m Blob	Returns: the new `Blob`.

Like areaNew, but track a length as well. The returned Blob takes ownership of data and will free it with freeFn. Pass NULL for freeFn to not transfer ownership.

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

Properties

area

No description available in the introspection data.

getBlobArea :: MonadIO m => Blob -> m Area Source #

Get the value of the “area” field. When overloading is enabled, this is equivalent to

get blob #area