NAME

       d_slider_proc  -  Dialog  procedure  implementing  a  slider  control object. Allegro game
       programming library.

SYNOPSIS

       #include <allegro.h>

       int d_slider_proc(int msg, DIALOG *d, int c);

DESCRIPTION

       A slider control object. This object holds a value in d2, in the range from 0  to  d1.  It
       will  display  as  a vertical slider if h is greater than or equal to w, otherwise it will
       display as a horizontal slider. The dp field can contain an optional bitmap to use for the
       slider  handle,  and  dp2  can contain an optional callback function, which is called each
       time d2 changes. The callback function should have the following prototype:

          int function(void *dp3, int d2);

       The d_slider_proc object will return the value of the callback function.

SEE ALSO

       exgui(3alleg4), exrgbhsv(3alleg4)