// Returns a new pixel iterator
//
// mw: the magick wand to iterate on
// x, y, cols, rows: there values define the perimeter of a region of pixels
//
func (mw *MagickWand) NewPixelRegionIterator(x, y int, width, height uint) *PixelIterator {
return &PixelIterator{C.NewPixelRegionIterator(mw.mw, C.ssize_t(x), C.ssize_t(y), C.size_t(width), C.size_t(height))}
}
func (self *Canvas) PixelIterator(x, y int, width, height uint) *PixelIterator {
return &PixelIterator{iterator: C.NewPixelRegionIterator(self.wand, C.ssize_t(x), C.ssize_t(y), C.size_t(width), C.size_t(height))}
}