Function _conGetNDF() | Xbase++

Reads the value and the default format of a numeric container.

XPPAPIRET _conGetNDF(ContainerHandle chn, double *ndValue
                     LONG *intDigits, LONG *decDigits);

ContainerHandle chn

Handle of a container with a numeric value.

double *ndValue

Pointer to a buffer of double type into which the value of the numeric container is to be written.

LONG *intDigits

Pointer to a buffer into which the desired number places to the left of the decimal point is to be written. If the number of places to the left of the decimal point is not defined the furnished value is negative.

LONG *decDigits

Pointer to a buffer into which the desired number of places to the right of the decimal point is to be written.

The function returns an error code (XPP_ERR_...) when the container chn is not of numeric type. If the return value is NULL the operation was successful.

The function _conGetNDF() returns the value of a container of numeric type, along with information about the desired formatting for output of this value. The returned number of places before and after the decimal point give no information about the actual values before and after the decimal point.

/* 
Determines the value and the format of a numeric container. 
*/ 
#include <xppcon.h> 
#include <stdio.h> 
ContainerHandle  chNumeric; 
LONG             nIntgDigits, nDecDigits; 
XPPAPIRET        xr; 
double           ndValue; 

/* Assigns a value to ... hNumeric */ 

xr = _conGetNDF(hNumeric, &ndValue, &nIntgDigits, &nDecDigits); 
if (xr == 0) 
{ 
/* Output of the value of the number in the default format:  */ 
printf(buffer,"%*.*f\n", nIntgDigits, nDecDigits, ndValue); 
}

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Function _conGetNDF() Foundation