Method

VipsAreaget_data

Declaration [src]

void*
vips_area_get_data (
  VipsArea* area,
  size_t* length,
  int* n,
  GType* type,
  size_t* sizeof_type
)

Description [src]

Return the data pointer plus optionally the length in bytes of an area, the number of elements, the GType of each element and the sizeof() each element.

Parameters

`length`	`size_t*`
	Optionally return length in bytes here.
	The argument will be set by the function.
	The argument can be `NULL`.
	The instance takes ownership of the data, and is responsible for freeing it.
`n`	`int*`
	Optionally return number of elements here.
	The argument will be set by the function.
	The argument can be `NULL`.
	The instance takes ownership of the data, and is responsible for freeing it.
`type`	`GType*`
	Optionally return element type here.
	The argument will be set by the function.
	The argument can be `NULL`.
	The instance takes ownership of the data, and is responsible for freeing it.
`sizeof_type`	`size_t*`
	Optionally return `sizeof()` element type here.
	The argument will be set by the function.
	The argument can be `NULL`.
	The instance takes ownership of the data, and is responsible for freeing it.

Return value

Returns:	`gpointer`
	The pointer held by `area`.
	The data is owned by the instance.
	The return value can be `NULL`.