PureBasic Forums - English

Posted: **Sat Mar 03, 2012 8:16 am**

From within a dll

during "attach process" -- under certain conditions, I want the dll to "fail to load" -- is there a way to do that?

EDIT:
it appears if I raise an error in AttachProcess() this causes the dll to not load...
Is this the best approach?

Posted: **Sat Mar 03, 2012 10:05 am**

It might be enough just to return false in AttachProcess...at least that's how you'd do it in the native WinAPI DllMain function...
Check this out, it might help: http://msdn.microsoft.com/en-us/windows ... 87379.aspx

Posted: **Sun Mar 04, 2012 12:49 am**

Shield wrote:It might be enough just to return false in AttachProcess...at least that's how you'd do it in the native WinAPI DllMain function...
Check this out, it might help: http://msdn.microsoft.com/en-us/windows ... 87379.aspx

I thought that might be -- but a function w/o a specific "procedurereturn" does return 0/false

So by default, attachprocess procedure returns false.

Posted: **Sun Mar 04, 2012 9:35 am**

You could try using DllMain instead of AttachProcess and DetachProcess.
It has a return value that indicates if it was successfull.

http://msdn.microsoft.com/en-us/library ... 82583.aspx

Posted: **Sun Mar 04, 2012 10:19 pm**

I don't know if i have good understand the question

But there are a long time FREAK give to me this little jewel

I use it for not give acces of my DLL if the key of the EXE is not good

Code: Select all

 !ADD esp, 8     ; remove Instance variable and return address from stack 
 !MOV eax, 0     ; set returnvalue to 0 
 !RET 12         ; return from DllEntryPoint

Posted: **Mon Mar 05, 2012 1:11 am**

Kwaï chang caïne wrote:I don't know if i have good understand the question
But there are a long time FREAK give to me this little jewel
I use it for not give acces of my DLL if the key of the EXE is not good
Code: Select all
 !ADD esp, 8     ; remove Instance variable and return address from stack 
 !MOV eax, 0     ; set returnvalue to 0 
 !RET 12         ; return from DllEntryPoint 

Thanks -- I was looking for a "proper way" -- but it seems there are many ways. Personally, I like the simple

Code: Select all

RaiseError(#ERROR_DLL_INIT_FAILED)

Error returned to calling program is meaningful...

Posted: **Mon Mar 05, 2012 7:11 pm**

Cool i never see this function

Thanks jassing

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forcable fail dll load?

forcable fail dll load?

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