classname_fieldname_get(blob)

This function retrieves a value from a blob.

Prototype

 
    MCO_RET	classname_fieldname_get(	/*IN*/ classname *handle, 
                          /*IN*/ uint4 start_offset, 
                          /*OUT*/ char *dest, 
                          /*IN*/ uint4 dest_size, 
                          /*OUT*/ uint4 *len);
 

Arguments

handle	A pointer to a classname handle
start_offset	The offset from the start of the blob from where reading will begin
dest	A pointer to a buffer to receive the element’s contents
dest_size	The size of the dest buffer
len	A uint4 pointer to receive the number of bytes written to dest

Description

This form of the function applies to elements that are of type blob.

Return Codes

MCO_S_OK	The value was put successfully
MCO_E_EMPTYBLOB	Blob was not been written
MCO_E_TRANSACT
MCO_ERR_OBJECT_HANDLE

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