Vips.Image.uhdrsave_buffer

### Method

# Vips Imageuhdrsave_buffer

#### Declaration [src]

    int
    vips_uhdrsave_buffer (
      VipsImage* in,
      void** buf,
      size_t* len,
      ...
    )

#### Description [src]

As `vips_uhdrsave()`, but save to a memory buffer.

Optional arguments

- `Q`: `gint`, quality factor
- `gainmap_scale_factor`: `gint`, scale factor of base image to gainmap

See also

`vips_uhdrsave()`, `vips_image_write_to_file()`.

This method is not directly available to language bindings.

#### Parameters

`buf`

  Type: An array of `guint8`

  Return output buffer here.

  The length of the array is specified in the `len` argument.
  The data is owned by the caller of the method.

`len`

  Type: `size_t*`

  Return output length here.

  The data is owned by the caller of the method.

`...`

  Type: ``

  `NULL`-terminated list of optional named arguments.

#### Return value

Type: `int`

0 on success, -1 on error.