UIElement.PreviewKeyDown Event


Occurs when a keyboard key is pressed while the UIElement has focus.

 virtual event KeyEventHandler ^ PreviewKeyDown;
// Register
event_token PreviewKeyDown(KeyEventHandler const& handler) const;

// Revoke with event_token
void PreviewKeyDown(event_token const* cookie) const;

// Revoke with event_revoker
UIElement::PreviewKeyDown_revoker PreviewKeyDown(auto_revoke_t, KeyEventHandler const& handler) const;
public event KeyEventHandler PreviewKeyDown;
function onPreviewKeyDown(eventArgs) { /* Your code */ }
uIElement.addEventListener("previewkeydown", onPreviewKeyDown);
uIElement.removeEventListener("previewkeydown", onPreviewKeyDown);
- or -
uIElement.onpreviewkeydown = onPreviewKeyDown;
Public Custom Event PreviewKeyDown As KeyEventHandler 
<uiElement PreviewKeyDown="eventhandler"/>

Event Type


Windows requirements

Device family
Windows 10 Fall Creators Update (introduced in 10.0.16299.0)
API contract
Windows.Foundation.UniversalApiContract (introduced in v5.0)


PreviewKeyDown is a routed event. For more info on the routed event concept, see Events and routed events overview.

This event uses the tunneling routing strategy. The corresponding bubbling event is KeyDown.

Applies to

See also