major-grid-line-color

Arguments: chart-axis

Returns the value of the major-grid-line-color property of a chart-axis. The value may be set at creation time by passing the :major-grid-line-color initarg, or any time later by calling (setf major-grid-line-color).

The color that is used to draw major grid lines for a chart-axis across the body of its chart-widget. The value should be an RGB object (see make-rgb). The default value is the value of light-gray.

This property is used only when the draw-major-grid-lines property of the chart-axis is true and the major-grid-line-width property is positive.

See chart-widget and also cg-chart-widget.htm.

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Created 2019.8.20.