Allow other handlers to process.

Prevent further event handling.

go:generate bitmasker -type ConnectFlags.

go:generate bitmasker -type DestDefaults.

go:generate stringer -type DragResult.

go:generate stringer -type EventFlag.

go:generate stringer -type HorizontalAlignment.

go:generate stringer -type Justification.

go:generate bitmasker -type ObjectFlags.

go:generate stringer -type Orientation.

go:generate bitmasker -type SignalFlags.

go:generate bitmasker -type SignalMatchType.

go:generate bitmasker -type SignalRunType.

go:generate bitmasker -type TargetFlags.

go:generate stringer -type VerticalAlignment.

go:generate stringer -type WindowType.

go:generate stringer -type WrapMode.