captcha

Documentation

Index

• type PNG
  • func New(rngKey, sid, digits string, width, height int) *PNG
  • func (m *PNG) WriteTo(w io.Writer) (int64, error)

Types

type PNG

type PNG struct {
	*image.Paletted
	// contains filtered or unexported fields
}

func New

func New(rngKey, sid, digits string, width, height int) *PNG

NewImage returns a new captcha image of the given width and height with the given digits, where each digit must be in range 0-9.

func (*PNG) WriteTo

func (m *PNG) WriteTo(w io.Writer) (int64, error)

WriteTo writes captcha image in PNG format into the given writer.