.\" Generated by the Allegro makedoc utility
.TH adime_d_double_calc_edit_proc 3 "version 2.2.1" "Adime" "Adime API Reference"
.SH NAME
adime_d_double_calc_edit_proc
.SH SYNOPSIS
.B #include <adime.h>

.sp
.B int adime_d_double_calc_edit_proc(int msg, DIALOG *d, int c);
.SH DESCRIPTION
Gui proc for an edit box accepting a mathematical expression whose result
is a floating point number. The result is calculated and displayed on a
separate gui object as the user types. The edit box has a 3d-ish look.

The dp2 field points to a `struct ADIME_EDIT_NUMBER *\' which holds some
information about the behavior of the edit box:

.nf
   typedef struct ADIME_EDIT_NUMBER
   {
      int is_signed;          /* Set for integer formats if it is signed. */
      int is_float;           /* Set if we only have float, not double. */
      double min_val, max_val;/* Range for numbers. */
      DIALOG *result_object;  /* DIALOG object to display result in. */
   } ADIME_EDIT_NUMBER;
   
.fi
The `result_object\' will be used to display the result of the expression.
There is an `adime_d_calc_edit_result_proc\' object type which is designed
to be used as `result_object\', but you may of course write your own object
to take care of this. Whenever the user changes the text in the
`adime_d_double_calc_edit_proc\', the result is printed to the `dp\' field of
`result_object\'; hence you must have set the dp field of `result_object\'
to a text buffer with enough space (256 bytes is safe). The
`result_object\' will then be sent a `MSG_DRAW\' message with the `c\'
parameter set to 2 if there is an error in the expression or 1 if it is
ok.

.SH SEE ALSO
.BR adime_d_calc_edit_result_proc (3),
.BR adime_d_int_calc_edit_proc (3)