magic no is combo of TA_NOUPDATECP,TA_UPDATECP,TA_LEFT,TA_RIGHT,TA_CENTER,TA_TOP,TA_BOTTOM,TA_BASELINE
which basically specify whether the text is left or right aligned, or centered in the horizontal
direction. centered on the baseline, at the top or the bottom of the baseline. And whether the
current position is updated or not.See the source for more details on all this malarky.