# getNbOutputArgument (Scilab gateway)

A C gateway function which provides the number of output arguments present in the calling Scilab function

## Calling Sequence

    nb_params = getNbOutputArgument(void* _pvCtx)

    nb_params = nbOutputArgument

    nb_params = Lhs

## Arguments

_pvCtx

  Scilab environment pointer, pass in "pvApiCtx" provided by api_scilab.h

nb_params

  the number of output arguments present in the calling Scilab function

## Description

getNbOutputArgument provides a C gateway function which provides the number of output arguments present in the calling Scilab function. You must include api_scilab.h to benefit from this function.

## Examples

In this example, the C gateway function can take several output arguments and prints in the Scilab console the integer corresponding to the number of output arguments detected in the calling Scilab function.

    #include "api_scilab.h"
    #include "sciprint.h"

    int sci_mylhs(char * fname)
    {
      sciprint("The number of output arguments is %d\n", getNbOutputArgument());

      return 0;
    }

## See Also

- getNbInputArgument
- sciprint