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[UMG] Constraint drag within widget

Hi all,

I have a UMG widget (let's call it main widget) consisting of 2 other widgets (widget 1 and widget 2) in an overlay. I want to be able to drag widget 1 over widget 2 without widget 1 exiting widget 2 bounds.

Drag and drop works like a charm but I can't figure out how I can constraint widget 1 within widget 2 bounds.

I've tried to detect out of bounds in the dragged event of the drag and drop operation, calculate new coordinates within widget2 and set position in viewport for widget 1 but it doesn't not seem to have any effect. I also wanted to force the drop on leaving widget 2 but can't find a way to do that.

Maybe I 'm just looking at it the wrong way. Any idea would be very much appreciated.


Product Version: UE 4.21
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asked Feb 09 '19 at 01:13 PM in Blueprint Scripting

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