On 01/10/2014 11:51 AM, Wodzu wrote: > Hi guys, > > I've read all the information about developing UDFs which I could find. I > know that in earlier versions of Firebird it was not possible to pass NULL > parameters. However I am using Firebird 2.5 and I want to return a NULL value > instead of an empty BLOB. I do not want to pass NULLs. Is this possible? >
Try to pass parameters and return values by descriptor. Some samples are in fbudf.cpp, your special attention to string2blob. ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
