fontBoundingBoxAscent property

double get fontBoundingBoxAscent

The read-only fontBoundingBoxAscent property of the TextMetrics interface returns the distance from the horizontal line indicated by the CanvasRenderingContext2D.textBaseline attribute, to the top of the highest bounding rectangle of all the fonts used to render the text, in CSS pixels.

Implementation

external double get fontBoundingBoxAscent;