GetStringChunk(ul_column_num, char *, size_t, size

public virtual size_t GetStringChunk(
    ul_column_num cid,
    char * dst,
    size_t len,
    size_t offset
)

cid The 1-based ordinal column number.
dst The buffer to hold the string chunk. The string is null-terminated even if truncated.
len The size of the buffer in bytes.
offset Set to the offset into the value at which to start reading or set to the UL_BLOB_CONTINUE constant to continue from where the last read ended.

The number of bytes copied to the destination buffer excluding the null-terminator. If the dst value is set to NULL, then the number of bytes left in the string is returned. An empty string is returned in the dst parameter when the column is null; use the IsNull method to differentiate between null and empty strings.

The end of the value has been reached if 0 is returned.

ULResultSet.IsNull method [UltraLite C++]

GetStringChunk(ul_column_num, char *, size_t, size_t) method

Syntax

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See also