AutoHotkey Community

Hi everyone !

I want to write a file copy subroutine which can resume file if it was interrrupted. I found kernel32.dll\CopyFileEx is just perfect for my needs.

It is described in MSDN as



I am a complete newbie to DLLCall function of Autohotkey, but this is what I have buit:


This will give me 0x05 error which is Access violation. After my testing, I am convinced it is caused by lpProgressRoutine = 0.

I wonder, is it possible to run CopiFileEx() at all from Autohotkey ?
How should I pass a NULL pointer to CopyFileEx ?
What am I missing here

AHK doesn't support callbacks, as I found out recently

There might be another way to do what you are wanting with FileReadLine though...

Cool, all information is here, no research to do... That's rare enought to be pointed out.
valenock: to pass a NULL pointer, use "UInt", 0, no "UInt *".

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vPhiLho := RegExReplace("Philippe Lhoste", "^(\w{3})\w*\s+\b(\w{3})\w*$", "$1$2")

Thanks a lot - that Uint worked just fine.

Could this information also be added to the Autohotkey help file ?
Or should I really bother Chris on this issue ?

it is basic knowledge for winapi calls. pointers, by references, by value, etc. If you go into Windows kernel be sure to know these things. You can find winapi guide for newbies or something like that on the Net. Several pages of common API "contract" will be enough I suppose

It seems useful enough to mention, so I've added the following to the parameter types table in the "Int" row:
Thanks for the suggestion.

That'll teach me to read the whole MSDN thing.

Good move, Chris! Indeed, this isn't intuitive, even for experimented WinAPI developpers (that's more AutoHotkey knowledge that WinAPI/C one).
I found the trick in someone's code.

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vPhiLho := RegExReplace("Philippe Lhoste", "^(\w{3})\w*\s+\b(\w{3})\w*$", "$1$2")

Same here.