sqlite3_blob_bytes

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References

int sqlite3_blob_bytes  
(  
    sqlite3_blob *  
)  
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int sqlite3_blob_bytes (     sqlite3_blob * )

Remarks

CAPI3REF: Return The Size Of An Open BLOB METHOD: sqlite3_blob

^Returns the size in bytes of the BLOB accessible via the successfully opened [BLOB handle] in its only argument. ^The incremental blob I/O routines can only read or overwriting existing blob content; they cannot change the size of a blob.

This routine only works on a [BLOB handle] which has been created by a prior successful call to [sqlite3_blob_open()] and which has not been closed by [sqlite3_blob_close()]. Passing any other pointer in to this routine results in undefined and probably undesirable behavior.