Public Member Functions | |
| COdbcByteData (SQLCHAR *pData, SQLLEN dataLength, SQLULEN maxLength) | |
| SQLCHAR * | GetDataPtr () |
| SQLLEN | GetDataLength () |
| void | SetDataLength (SQLLEN dataLength) |
| SQLULEN | GetMaxLength () |
It is used for input & output of binary data at ODBC API. If the size of binary data is too big, this class will be used to omit unnecessary copy process in the process of data input & output. A user must possess binary data and this class refers to the data.
| Proud::COdbcByteData::COdbcByteData | ( | SQLCHAR * | pData, |
| SQLLEN | dataLength, | ||
| SQLULEN | maxLength | ||
| ) |
Constructor function. Please input the size & address of binary data that a user has.
| pData | Address of binary data. |
| dataLength | Current valid size of binary data. |
| maxLength | Maximum size of binary data saving. |
| SQLLEN Proud::COdbcByteData::GetDataLength | ( | ) |
Get the data size that has been set.
| SQLCHAR* Proud::COdbcByteData::GetDataPtr | ( | ) |
Get the data address that has been set.
| SQLULEN Proud::COdbcByteData::GetMaxLength | ( | ) |
Obtain the maximum size of data.
| void Proud::COdbcByteData::SetDataLength | ( | SQLLEN | dataLength | ) |
Readjust the size of data. If the length of data buffer changes when modifying data buffer that has been set by a constructor, you will be required to change the size by calling this function.