topic Re: AutoCAD 2019 porting problem in ObjectARX Forum

AutoCAD 2019 porting problem

danipon71 — Fri, 30 Mar 2018 14:16:41 GMT

Hi,

After the migration of an ARX project to AutoCAD 2019, I get the following compilation error:

error C2664: 'bool acedRemoveFilterWinMsg(const AcedFilterWinMsgFn)': cannot convert argument 1 from 'const AcedFilterWinMsgFn (__cdecl *)(MSG *)' to 'const AcedFilterWinMsgFn'.

I get that same error with the following methods:

acedRegisterFilterWinMsg ( const AcedFilterWinMsgFn pfn )

acedRemoveFilterWinMsg ( const AcedFilterWinMsgFn pfn )

acedRegisterWatchWinMsg ( const AcedFilterWinMsgFn pfn )

my hook function is declared like these:

const AcedFilterWinMsgFn MouseHook (MSG *pMsg)

{

...

}

what's wrong?

Thanks in advance

Re: AutoCAD 2019 porting problem

thierry_prince — Fri, 30 Mar 2018 14:32:24 GMT

Hi,

A change in 2019 is that the callback function must now return a 'bool' and not a 'BOOL / int' as previous versions.

But if you use the typedef for AcedFilterWinMsgFn, it should be correct.

Try to remove the 'const' statement at the beginning of the function implementation :

~~const~~ AcedFilterWinMsgFn MouseHook (MSG *pMsg)

{

...

}

Cheers,

Thierry

Re: AutoCAD 2019 porting problem

danipon71 — Fri, 30 Mar 2018 15:12:02 GMT

Thanks a lot for your fast reply!