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== Details ==
: There are no API functions which would alter an existing anchor point of a frame. So if you ''do'' want to change an anchor point (say, you want to move your frame), you should <tt>:ClearAllPoints()</tt> first, and then reanchor your frame using <tt>[[API Region SetPoint|:SetPoint()]]</tt>.
: Note that right after <tt>:ClearAllPoints()</tt> call your frame will disappear from screen, since WoW cannot display non-anchored objects.