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Passing objects from VB to CVF COM server

Intel_C_Intel
Employee
‎10-24-2001 12:21 AM
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I am trying to use the VARIANT datatype to pass data from VB to CVF and vice versa. This appears to be working fine when the VARIANT type is long or double or boolean or something simple like that. However I want to pass a structure. This is not working. I have tried setting the VT type in CVF to VT_VARIANT+VT_BYREF, and VARIANT in VB, but VB just crashes when I do the property GET. I also tried VT_PTR bot no luck. In both cases I am setting VU%PTR_VAL = loc(class). Any help greatly appreciated.
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Intel_C_Intel
Employee
‎10-24-2001 04:32 AM
432 Views
See this past thread http://www7.compaq.com/forum?14@@.eefc5f5 !SearchMark=1#1

also these MSDN documentation links
http://msdn.microsoft.com/library/en-us/automat/htm_hh2/chap12_3rcj.asp

http://msdn.microsoft.com/library/en-us/automat/htm_hh2/chap12_2bqr.asp

And for a complete discussion of pre NT4 SP4 options, there's Don Box's June 1996 ActiveX Q&A column

-JT
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