Vips.check_bands
Description: Reference for Vips.check_bands

### Function

# Vipscheck_bands

#### Declaration [src]

    int
    vips_check_bands (
      const char* domain,
      VipsImage* im,
      int bands
    )

#### Description [src]

Check that the image has `bands` bands. Otherwise set an error message and return non-zero.

See also

`vips_error()`.

#### Parameters

`domain`

  Type: `const char*`

  The originating domain for the error message.

  The data is owned by the caller of the function.
  The value is a NUL terminated UTF-8 string.

`im`

  Type: `VipsImage`

  Image to check.

  The data is owned by the caller of the function.

`bands`

  Type: `int`

  Must have this many bands.

#### Return value

Type: `int`

0 if OK, -1 otherwise.