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Gets a wide string chunk from the column.
public virtual size_t GetStringChunk(
ul_wchar * dst,
The 1-based ordinal column number.
The buffer to hold the string chunk. The string is null-terminated even if truncated.
The size of the buffer in ul_wchars.
The offset into the value at which to start reading or UL_BLOB_CONTINUE to continue from where the last read ended.
The number of ul_wchars copied to the destination buffer excluding the null-terminator. If dst is NULL, the number of ul_wchars
left in the string is returned.
The end of the value has been reached if 0 is returned.