How to get the pointer of "this" ?

[Vinod K Chandran]

On Monday, 25 May 2020 at 16:54:11 UTC, Mike Parker wrote:
> On Monday, 25 May 2020 at 16:26:31 UTC, Vinod K Chandran wrote:
>
>> [...]
>
> The error has nothing to do with taking a pointer to `this`. 
> It's suggesting that somewhere in your code you're attempting 
> to use the `this` reference like an lvalue, e.g. making an 
> assignment to it. I don't see anywhere that you're doing that. 
> Glancing through the code, I don't see anywhere that you're 
> doing that (and unfortunately this is not a minimal example 
> because of dependencies on some of your other modules, so I 
> can't compile it myself).
>
> [...]

Hi @Mike Parker,
Thank you for your valuable suggestions. I will sure follow them. 
Well, the  exact line number where the error showing is the one 
with the "SetWindowSubclass" function.  In pastebin, the line 
number is 124.