Golang image.Alpha16.Opaque function example

package image

 func (p *Alpha16) Opaque() bool
  

Opaque scans the entire image and reports whether it is fully opaque.

Golang image.Alpha16.Opaque function usage example

 package main

 import (
 "fmt"
 "image"
 )

 func main() {
 canvas := image.NewAlpha16(image.Rect(0, 0, 100, 100))

 // is this canvas(image) opaque
 op := canvas.Opaque()

 fmt.Println("canvas is opaque ? ", op)

 }

Reference :

http://golang.org/pkg/image/#Alpha16.Opaque