opencv/cxcore.go
func (seq *Seq) PopFront(element unsafe.Pointer) {
	C.cvSeqPopFront((*C.struct_CvSeq)(seq), element)
}
func (seq *Seq) PopFront(element unsafe.Pointer) {
	C.cvSeqPopFront((*C.struct_CvSeq)(seq), element)
}
// Removes element from the sequence beginning.
// Copies the element into the paramter element.