MDrawParticlesQ CoordinateList.l,NumPoints.l,Buffer.l ; Draw previously grabbed points, using X.q,Y.q's

Does the same as MDrawParticlesQ except using X.q,Y.q list data. Each list item
is a longword quick value in which the upper word is taken as the integer
coordinate and the lower word, the decimal, is ignored. Two longwords are
required for each pixel in the list.