Checking if the file to replace is currently in use

[Andrzej Miechowicz]

Hi, 

I use idp.iss module (FindModule function) to check, if the files to replace are currently in use. It uses IssProc.dll library.

Some of users notify the error "Cannot Import dll [...] IssProc.dll"

The solution is described in the article (dll should be loaded with a delay): 

https://stackoverflow.com/questions/21435282/inno-setup-failing-to-import-dll

So I added clause delayload:

[Code]

function IssFindModule(hWnd: Integer; Modulename: PAnsiChar; Language: PAnsiChar; Silent: Boolean; CanIgnore: Boolean ): Integer;

   external 'IssFindModule@files:IssProc.dll stdcall delayload';

But after this change another group of users notify the error: 

Runtime error (at 141:625).

Could not call proc. 

How do you check, if the programs (.exe and .dll) are in use?

Do you use another solutions? 

Maybe I should call or load it another way?

[Martijn Laan]

Hi,

> Op 9 mrt. 2021 om 12:46 heeft Andrzej Miechowicz <andrzejm...@gmail.com> het volgende geschreven:
>
> How do you check, if the programs (.exe and .dll) are in use?

It does this automatically by default, using Windows RestartManager. See https://jrsoftware.org/ishelp/index.php?topic=setup_closeapplications

Greetings,
Martijn

[Andrzej Miechowicz]

Thank you Martijn! 

It was exactly what I was looking for!