wikimg firstcolor cancel

cancelfirst.go

func (p *Puller) FirstColor(imgURL string) (xtermColor int, hex string, err error) {
	// etc...
	
	rect := img.Bounds()
	i := 0
	for x := 0; x < rect.Dx(); x++ {
		for y := 0; y < rect.Dy(); y++ {

			// Check if p.Cancel has been closed once every cancelCheckpoint
			// iterations
			if i%cancelCheckpoint == 0 {
				select {

				case <-p.Cancel:
					// If p.Cancel has been closed, this will be triggered
					err = Canceled
					return

				default:
					// Otherwise we'll just do nothing immediately
				}
			}
			i++
			
			// etc...
		}
	}


	// etc...
}