.CHART SET CNR EXT CLR

This subroutine sets the exterior color for rounded corners for the "current" chart.

Usage:

      PASS         <color_spec_name>          FIELD            SHARE? N
      *        OR
      PASS         <color_value>              FIELD            SHARE? N
      GOSUB    0CD .CHART SET CNR EXT CLR
      *        Check for error
      IF       0CD .CHART SET CNR EXT CLR        NE

Description:

This subroutine set the exterior color of the chart area for the "current" chart spec. This routine receives a single, optional value specifying either a <color_spec_name> or a <color_value>.

If a parameter is not received or if the value received is blank, then the exterior color of the chart spec is cleared and the default exterior color will be rendered.

If a parameter is received, the system first assumes that the value received is a <color_spec_name> and checks to see if a color spec record has been previously initialized with that name. If a color spec record is found, then that color spec record is used as a prototype to create a color spec for the exterior color. If a color spec record is not found, then the system assumes that the value received is a literal <color_value> and uses the specified color to create a color spec for the exterior color.

After setting the exterior color, the exterior color spec becomes the "current" color spec.

See ColorSpec for more information on working with colors.

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-- JeanNeron - 2011-10-06