VarSetCapacity & Struct size

[niczoom]

Thanks for the response, that's good to know.

Process32First and Process32Next are some of the rare special cases. The Kernel32.dll exports two function names, one without a suffix for ANSI and one with the suffix W for Unicode.

I suppose this knowledge comes with experience! As you mentioned this is a rare case, it sounds like there are not too many other functions like this. On MSDN is there a way to tell if a particular function works in this way so I can be more prepared?

[swagfag]

yes, use dependencywalker to find out which functions are exported and what theyre called

[just me]

In the good old MSDN functions were listed by their 'base names' and the complete ANSI respectively Unicode names were listed at the bottom of the function's page. Microsoft changed that for unknown reasons.

[jeeswg]

This function by SKAN lists the functions in a dll:
DllListExports() - List of Function exports of a DLL - AutoHotkey Community
https://autohotkey.com/boards/viewtopic.php?f=6&t=4563

I mention some 'FuncW/Func' pairs that I've come across, here:
jeeswg's DllCall and structs tutorial - AutoHotkey Community
https://autohotkey.com/boards/viewtopic.php?f=7&t=63708

Here are some exceptions e.g. 'FuncW/Func' pairs.

[niczoom]

Thanks for the help. The last few comments have explained the A/W business well and I have a much better understanding of how AHK handles it and Ansii/Unicode in general.