Virtual Method

VipsSourceread

Declaration [src]

gint64
read (
  VipsSource* source,
  void* buffer,
  size_t length
)

Description [src]

Read up to length bytes from source and store the bytes in buffer. Return the number of bytes actually read. If all bytes have been read from the file, return 0.

Arguments exactly as read().

Parameters

`buffer`	`void*`
	Store bytes here.
	The argument can be `NULL`.
	The data is owned by the caller of the function.
`length`	`size_t`
	Length of `buffer` in bytes.

Return value

Returns:	`gint64`
	The number of bytes read, 0 on end of file, -1 on error.