[VB6] Use IFileOperation to replace SHFileOperation for modern Copy/Move box/prompts

[chrislong2]

Hi fafalone, First - THANK YOU for this!

I am not actually using the class, but took out the necessary parts I needed to do a basic move operation and it works fine. However, both my code and also in the class invokes an interface function like so:

In MoveFile function for instance:
iFileOp.PerformOperations

Not:
retval = iFileOp.PerformOperations

which won't work. How do I get the return value from the PerformOperations function? Surely there's a way as that's important to know what the error return code is!??

In other words, all the "functions" seem to be declared as Subs in the tlb and thus not returning their hresult/long. Yet that hresult is key to knowing what went wrong. For example, if the move didn't succeed, that hresult tells you why.

What am I missing? Is there some other way I'm supposed to be getting the return value of those interface functions?

EDIT: I ran across your notes for the TLB and see this problem is a common one. I don't understand why you declared them as HRESULT in the TLB if VB treats those as Subs? I also am not clear at all how to use the SwapvTableEntry thing to get the return value. Is there another way? What do I need to do?