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API > API/Runtime > API/Runtime/UMG > API/Runtime/UMG/UUserWidget
Description
Called after a key (keyboard, controller, ...) is pressed when this widget or a child of this widget has focus If a widget handles this event, OnKeyDown will not be passed to the focused widget.
This event is primarily to allow parent widgets to consume an event before a child widget processes it and it should be used only when there is no better design alternative.
| Name | OnPreviewKeyDown |
| Type | function |
| Header File | /Engine/Source/Runtime/UMG/Public/Blueprint/UserWidget.h |
| Include Path | #include "Blueprint/UserWidget.h" |
UFUNCTION (BlueprintImplementableEvent, Category="Input")
FEventReply OnPreviewKeyDown
(
FGeometry MyGeometry,
FKeyEvent InKeyEvent
)
Returns whether the event was handled, along with other possible actions
Parameters
| Name | Remarks |
|---|---|
| MyGeometry | The Geometry of the widget receiving the event |
| InKeyEvent | Key event |