# showGaugeTooltip

Gauge-only — open the value tooltip programmatically.

Canonical: https://chart.syidax.com/docs/methods/showGaugeTooltip/

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## Definition

```typescript
showGaugeTooltip(): Promise<GaugeChartPointerEventDetail | null>
```

Return type: `Promise<GaugeChartPointerEventDetail | null>`. Call the method after element registration and await its Promise result.

- [GaugeChartPointerEventDetail](https://chart.syidax.com/docs/types/GaugeChartPointerEventDetail.md) — Type definition

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## Related charts