XmChangeColor — Recalculates all associated colors of a widget "XmChangeColor" "Color functions"

XmChangeColor handles all color modifications for the specified widget when a new background pixel  value
       is  specified.   This  function  recalculates  the foreground, select, and shadow colors based on the new
       background color and sets the corresponding resources for the widget. If a  color  calculation  procedure
       has  been  set by a call to XmSetColorCalculation, XmChangeColor uses that procedure to calculate the new
       colors. Otherwise, the routine uses a default procedure.

       widget    Specifies the widget ID whose colors will be updated

       background
                 Specifies the background color pixel value

XmChangeColor  —  Recalculates  all  associated  colors  of  a  widget  "XmChangeColor" "Color functions"
       "XmChangeColor"

XmGetColorCalculation(3), XmGetColors(3), and XmSetColorCalculation(3).

                                                                                                XmChangeColor(3)

       #include <Xm/Xm.h>
       voidXmChangeColor(
       Widgetwidget,
       Pixelbackground);