On Tuesday, 11 May 2021 at 09:10:02 UTC, Vinod K Chandran wrote:
Hi all,
I am practising D with a win api GUI hobby project.
I have a Window class and it resides in module window.d
My WndProc function resides in another module named
wnd_proc_module.d
Inside my WndProc, I get the Window class like this.
```d
Window win = cast(Window) (cast(void*) GetWindowLongPtrW(hWnd,
GWLP_USERDATA)) ;
```
So in many situations, I need to check some boolean properties
of Window class and call some functions of Window class in
WndProc.
But I don't want to expose those props and functions to the
user. So if I make them private, I can't access them inside the
WndProc function. How do solve this issue. Thanks in advance.
The `package` protection attribute should work here if the
modules reside in the same package (directory)?
```d
module mywindow.window;
import mywindow.wnd_proc_module.d
class Window {
package int x, y;
}
```
```d
module mywindow.wnd_proc_module.d
import mywindow.window;
class Proc {
Window win;
void doStuff() {
win.x = 3;
}
}
```
