PtrSafe not working

Hi all, i just migrated to 64 bit, and received a message stating i need to ptrsafe to all declare statements.

After a bit of research, I did this, and this is the only change made. eg, i changed:

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to

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Now when i try run the addin i get a message to say there is a problem with the addin and excel just shuts down again unless i disable the addin.

Any ideas ?

I am running win10 64bit and o365 64bit

Can't you just use Environ("username") and remove the API call completely?

Hey, I could, but its not the only function i need to update. That said, i found solution. I also have to add ptr to each long

You shouldn't. The declaration as posted was correct for 64 bit. Neither nSize nor the return value are handles or pointers, so they don't need to be LongPtr.