captcha

package
v0.2.0 Latest Latest
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Published: Apr 30, 2019 License: MIT, MIT Imports: 9 Imported by: 0

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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.

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