Application.ActiveChart Property (Excel)
Returns a Chart object that represents the active chart (either an embedded chart or a chart sheet). An embedded chart is considered active when it's either selected or activated. When no chart is active, this property returns Nothing .
expression A variable that represents an [Application](./Excel.Application(Graph property).md) object.
If you don't specify an object qualifier, this property returns the active chart in the active workbook.
This example turns on the legend for the active chart.
ActiveChart.HasLegend = True