SLayerHandle::OnDragDetected

Called when Slate detects that a widget started to be dragged.

Unreal Engine C++ API Reference > Editor > MaterialEditor > SLayerHandle

References

   
Module MaterialEditor
Header /Engine/Source/Editor/MaterialEditor/Public/MaterialPropertyHelpers.h
Include #include "MaterialPropertyHelpers.h"
Source /Engine/Source/Editor/MaterialEditor/Private/MaterialPropertyHelpers.cpp
virtual [FReply](API\Runtime\SlateCore\Input\FReply) OnDragDetected
(
    const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & MyGeometry,
    const [FPointerEvent](API\Runtime\SlateCore\Input\FPointerEvent) & MouseEvent
)

Remarks

Called when Slate detects that a widget started to be dragged. Usage: A widget can ask Slate to detect a drag. OnMouseDown() reply with FReply::Handled().DetectDrag( SharedThis(this) ). Slate will either send an OnDragDetected() event or do nothing. If the user releases a mouse button or leaves the widget before a drag is triggered (maybe user started at the very edge) then no event will be sent.

Parameters

Name Description
InMyGeometry Widget geometry
InMouseEvent MouseMove that triggered the drag

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