GI.Poppler.Callbacks

Signals

AttachmentSaveFunc

type AttachmentSaveFunc

Arguments

 = ByteString

buf: buffer containing bytes to be written.

-> IO ()

Returns: True if successful, False (with error set) if failed. (Can throw GError)

Specifies the type of the function passed to attachmentSaveToCallback. It is called once for each block of bytes that is "written" by attachmentSaveToCallback. If successful it should return True. If an error occurs it should set error and return False, in which case attachmentSaveToCallback will fail with the same error.

type AttachmentSaveFunc_WithClosures

Arguments

 = ByteString

buf: buffer containing bytes to be written.

-> Ptr ()

data: user data passed to attachmentSaveToCallback

-> IO ()

Returns: True if successful, False (with error set) if failed. (Can throw GError)

Specifies the type of the function passed to attachmentSaveToCallback. It is called once for each block of bytes that is "written" by attachmentSaveToCallback. If successful it should return True. If an error occurs it should set error and return False, in which case attachmentSaveToCallback will fail with the same error.

type C_AttachmentSaveFunc = Ptr Word8 -> Word64 -> Ptr () -> Ptr (Ptr GError) -> IO CInt

Type for the callback on the (unwrapped) C side.

drop_closures_AttachmentSaveFunc :: AttachmentSaveFunc -> AttachmentSaveFunc_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_AttachmentSaveFunc

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_AttachmentSaveFunc

-> ByteString

buf: buffer containing bytes to be written.

-> Ptr ()

data: user data passed to attachmentSaveToCallback

-> m ()

(Can throw GError)

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

mk_AttachmentSaveFunc :: C_AttachmentSaveFunc -> IO (FunPtr C_AttachmentSaveFunc)

Generate a function pointer callable from C code, from a C_AttachmentSaveFunc.

noAttachmentSaveFunc :: Maybe AttachmentSaveFunc

A convenience synonym for Nothing :: Maybe AttachmentSaveFunc.

noAttachmentSaveFunc_WithClosures :: Maybe AttachmentSaveFunc_WithClosures

A convenience synonym for Nothing :: Maybe AttachmentSaveFunc_WithClosures.

MediaSaveFunc

type C_MediaSaveFunc = Ptr Word8 -> Word64 -> Ptr () -> Ptr (Ptr GError) -> IO CInt

Type for the callback on the (unwrapped) C side.

type MediaSaveFunc

Arguments

 = ByteString

buf: buffer containing bytes to be written.

-> IO ()

Returns: True if successful, False (with error set) if failed. (Can throw GError)

Specifies the type of the function passed to mediaSaveToCallback. It is called once for each block of bytes that is "written" by mediaSaveToCallback. If successful it should return True. If an error occurs it should set error and return False, in which case mediaSaveToCallback will fail with the same error.

Since: 0.14

type MediaSaveFunc_WithClosures

Arguments

 = ByteString

buf: buffer containing bytes to be written.

-> Ptr ()

data: user data passed to mediaSaveToCallback

-> IO ()

Returns: True if successful, False (with error set) if failed. (Can throw GError)

Specifies the type of the function passed to mediaSaveToCallback. It is called once for each block of bytes that is "written" by mediaSaveToCallback. If successful it should return True. If an error occurs it should set error and return False, in which case mediaSaveToCallback will fail with the same error.

Since: 0.14

drop_closures_MediaSaveFunc :: MediaSaveFunc -> MediaSaveFunc_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_MediaSaveFunc

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_MediaSaveFunc

-> ByteString

buf: buffer containing bytes to be written.

-> Ptr ()

data: user data passed to mediaSaveToCallback

-> m ()

(Can throw GError)

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

mk_MediaSaveFunc :: C_MediaSaveFunc -> IO (FunPtr C_MediaSaveFunc)

Generate a function pointer callable from C code, from a C_MediaSaveFunc.

noMediaSaveFunc :: Maybe MediaSaveFunc

A convenience synonym for Nothing :: Maybe MediaSaveFunc.

noMediaSaveFunc_WithClosures :: Maybe MediaSaveFunc_WithClosures

A convenience synonym for Nothing :: Maybe MediaSaveFunc_WithClosures.