RAD Studio VCL Reference
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TIBCustomDataSet.CreateBlobStream Method
TIBCustomDataSet Class | TIBCustomDataSet Members | IBCustomDataSet Namespace | Description
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Returns a TIBDSBlobStream object for reading or writing the data in a specified blob field.

Pascal
function CreateBlobStream(Field: TField; Mode: TBlobStreamMode): TStream; override;
C++
virtual __fastcall TStream CreateBlobStream(TField Field, TBlobStreamMode Mode);
Description

Call CreateBlobStream to obtain a stream for reading data from or writing data to a binary large object (BLOB) field. The Field parameter must specify a TBlobField component from the Fields property array. The Mode parameter specifies whether the stream will be used for reading, writing, or updating the contents of the field.

Note: The stream that this method returns belongs to the dataset. Do not free the stream: the dataset handles all allocation and freeing of streams that this method creates.
 

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