WindowProc in a class - function and pointer problem

[Simen Kjaeraas]

On 2013-05-22, 21:30, D-sturbed wrote:

> Hello, is there a way to wrap a WindowProc (so "LRESULT WindowProc(HWND  
> hWnd, UINT message, WPARAM wParam, LPARAM lParam) nothrow") in a class  
> and to link it to a WindowClass without puting it as "static" ?
>
> Because defacto every datum used in the WindowProc must also be static.
> The problem technically is that if "static" is not specified, the  
> compiler won't allow this: "MyWinClass.lpfnWndProc =  
> &TheWindowProcInMyClass".
>
> I've also tried this: "MyWinClass.lpfnWndProc =  
> (&TheWindowProcInMyClass).funcptr" but, while it compiles, it  
> drastically fails at the run-time...

Not possible, no. What you *can* do is have some way to translate from
hwnd to class instance, and fetch the right instance inside the static
wndProc to call a member function on that.

-- 
Simen