VC俺不懂,不过Delphi中可以通过MemoryStream读取显示图象
//例如
var
 MyStream:TMemoryStream;
begin 
 MyStream:=TMemoryStream.Create;
 Tabel1.Append;
 try
 MyStream.LoadfromFile('yourImagefile');
 MyStream.Position:=0;
 TBlobfield(Table1.FieldByName('image')).LoadfromStream(MyStream);
finally
 MyStream.free;
end;
Table1.Post;