Purpose
Get the data length attribute of the data
object. This is the total length of the data object. To obtain the length
of data that was read, use the cwbDQ_GetRetDataLen API.
Syntax
unsigned int CWB_ENTRY cwbDQ_GetDataLen(
cwbDQ_Data data,
unsigned long *dataLength);
Parameters
- cwbDQ_Data data - input
- Handle of the data object that was returned by a previous call to cwbDQ_CreateData.
- unsigned long * dataLength - output
- Pointer to an unsigned long where the length of the data will be written.
Return Codes
The following list shows common return
values.
- CWB_OK
- Successful completion.
- CWB_INVALID_POINTER
- Bad or null pointer.
- CWBDQ_INVALID_DATA_HANDLE
- Invalid data handle.