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API Region SetPoint

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Redirected from API LayoutFrame SetPoint

Widget API

Sets an attachment point of an UI component.

obj:SetPoint(point, relativeFrame, relativePoint, ofsx, ofsy);
obj:SetPoint(point, relativeFrame, relativePoint);
obj:SetPoint(point, ofsx, ofsy);
obj:SetPoint(point);

Arguments Edit

point 
String - Point of the object to adjust based on the anchor.
relativeFrame 
String/Widget - Name or reference to a frame to attach obj to. If omitted or nil, it typically defaults to the object's parent. However, if relativePoint is also not defined, relativeFrame will default to UIParent.
relativePoint 
String - point of the relativeFrame to attach point of obj to. If not specified, defaults to the value of point.
ofsx 
Number - x-offset (negative values will move obj left, positive values will move obj right), defaults to 0 if not specified.
ofsy 
Number - y-offset (negative values will move obj down, positive values will move obj up), defaults to 0 if not specified.

Points Edit

There are nine valid point values:

  • "TOP", "RIGHT" "BOTTOM" "LEFT": the center-points of the respective sides.
  • "TOPRIGHT", "TOPLEFT", "BOTTOMLEFT", "BOTTOMRIGHT": corners of the frame rectangle.
  • "CENTER": the center point of the frame rectangle.

Examples Edit

The following are all equivalent.

MainMenuBar:SetPoint("BOTTOMLEFT", "UIParent", "BOTTOMLEFT", 0, 0);
MainMenuBar:SetPoint("BOTTOMLEFT", UIParent, "BOTTOMLEFT", 0, 0);
MainMenuBar:SetPoint("BOTTOMLEFT", "UIParent", "BOTTOMLEFT");
MainMenuBar:SetPoint("BOTTOMLEFT", "UIParent");

The following is equivalent to the above, given that the parent frame of MainMenuBar is UIParent.

MainMenuBar:SetPoint("BOTTOMLEFT");
MainMenuBar:SetPoint("BOTTOMLEFT", 0, 0);

Details Edit

  • Behavior of this function with multiple anchors is complex. Generally, you can override points by setting them again (so repeated assignment to the "TOPLEFT" point of a frame would move the frame, unless other anchor points interfere). If you're repositioning a frame, call obj:ClearAllPoints() to eliminate unwanted interactions.
  • Offset units are relative to the screen's effective scale. WoW's screen always has a height of 768 units, while screen width varies with aspect ratio.
  • ofsx and ofsy must both be passed as arguments for either to take effect; they default to 0 only when neither is given. That is, foo:SetPoint(bar, 40) will ignore the 40 rather than treat it as (+40,+0).
  • Secure frames will silently ignore calls to this function if the relative frame is a FontString.

Edge definitions Edit

The edge "points" (TOP, RIGHT, BOTTOM, LEFT) are not actual points, but... edges. To fully define a region position using edges alone, you will need to define all four (as opposed to using corners, where you only need two) edges.

Therefore, defining an edge does not necessarily place a region relative to the center of that edge (For example, if you define TOP and RIGHT, the region will be placed at the TOPRIGHT corner). However, by default a region is "pulled" to the center if the number of points defined is insufficient.

Example:

Region:ClearAllPoints();
Region:SetPoint("TOP", relativeframe);
Region:SetWidth(100);
Region:SetHeight(100);

will place Region to the top center of the relativeframe while adding a

Region:SetPoint("RIGHT", relativeframe);

will place Region in the top right corner and now Region is fully defined.

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