UKismetInputLibrary::PointerEvent_GetGestureDelta

function Engine Blueprint Since unknown

#include "Kismet/KismetInputLibrary.h"

Access: public Specifiers: staticBlueprintPure

Description

Returns the change in gesture value since the last gesture event of the same type, such as a pinch-to-zoom or two-finger scroll delta.

Caveats & Gotchas

• Meaning of the X/Y components depends on the gesture type from PointerEvent_GetGestureType — e.g. Magnify typically only uses one axis — check the gesture type before interpreting the vector.
• Zero for pointer events that aren't part of an active gesture sequence.

Signature

static FVector2D PointerEvent_GetGestureDelta(const FPointerEvent& Input);

Parameters

Name	Type	Description	Default
Input	const FPointerEvent&	The pointer event to read the gesture delta from.	—

Return Type

FVector2D

Example

Scroll a list from a two-finger scroll gesture C++

FReply UMyWidget::NativeOnTouchGesture(const FGeometry& InGeometry, const FPointerEvent& InGestureEvent)
{
    const FVector2D Delta = UKismetInputLibrary::PointerEvent_GetGestureDelta(InGestureEvent);
    if (UKismetInputLibrary::PointerEvent_GetGestureType(InGestureEvent) == ESlateGesture::Scroll)
    {
        ScrollListView(Delta.Y);
    }
    return FReply::Handled();
}

Version History

Introduced in: unknown

Version	Status	Notes
5.6	stable	—

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