{"id":87,"date":"2013-08-05T08:45:06","date_gmt":"2013-08-05T08:45:06","guid":{"rendered":"https:\/\/praveenkatiyar.wordpress.com\/?p=87"},"modified":"2013-08-05T08:45:06","modified_gmt":"2013-08-05T08:45:06","slug":"modifying-array-of-numeric-types-default-marshaling","status":"publish","type":"post","link":"https:\/\/praveenkatiyar.in\/blog\/index.php\/2013\/08\/05\/modifying-array-of-numeric-types-default-marshaling\/","title":{"rendered":"Modifying array of numeric types (default Marshaling)"},"content":{"rendered":"

Define some functions in native dll (let say it \u201cWin32Native.dll<\/strong>\u201d)  as shown below. These 2 functions receives integer buffer, and double buffer respectively. <\/p>\n

extern "C" __declspec(dllexport) int ModifyIntegerArrayValues ( int nSize, int* pArray)<\/font><\/strong><\/p>\n

extern "C" __declspec(dllexport) double ModifyDoubleArrayValues ( int nSize, double* pArray)
<\/font><\/strong><\/p>\n

Implementing Functions<\/h3>\n

extern "C" __declspec(dllexport) int ModifyIntegerArrayValues ( int nSize, int* pArray)
{
    int nResult = 0 ;
    for ( int i = 0; i < nSize; i++ )
    {
        nResult += pArray[ i ];
        pArray[i] += 100;
    }
    return nResult;
}<\/strong><\/font><\/p>\n

extern "C" __declspec(dllexport) double ModifyDoubleArrayValues ( int nSize, double* pArray)
{
    double dblResult = 0 ;
    for ( int i = 0; i < nSize; i++ )
    {
        dblResult += pArray[ i ];
        pArray[i] += 200 ;
    }
    return dblResult ;
}<\/strong><\/font><\/p>\n

<\/strong><\/p>\n

Point of Interest<\/h4>\n