fx_Pulse()

Produces a pulsing effect.

Syntax:
     fx_Pulse( <cBaseAttr> )   ->   NIL

Arguments:
     <cBaseAttr> is a character string containing an attribute symbol
     to pulse.  The attribute symbol must be one of the following color
     symbols supported by Clipper:

     "N", "B", "G", "BG", "R", "RB", "GR", "W", "N+", "B+", "G+", "BG+",
     "R+", "RB+", "GR+", or "W+".  (Case is not important.)

Returns:
     Always returns a NIL value.

Description:
     fx_Pulse() produces a pulsing effect by periodically and gradually
     displaying the maximum high-intensity RGB value of an attribute.
     If an undefined attribute symbol is specified or an error occurs,
     the effect will not occur.

Examples:
     // Pulse attribute "b" to maximum high-intensity.
     fx_Pulse( "b" )

     // Pulse attribute "bg+" to maximum high-intensity.
     fx_Pulse( "bg+" )