Re: Question about property & method access scope.
On Tuesday, 11 May 2021 at 10:48:03 UTC, Mike Parker wrote:
On Tuesday, 11 May 2021 at 09:10:02 UTC, Vinod K Chandran wrote:
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.
Assuming window.d and wndproc.d are in the same package (and
not the default global package), then you can use `package`
instead of `private`.
On Tuesday, 11 May 2021 at 10:48:03 UTC, Mike Parker wrote:
>
> Assuming window.d and wndproc.d are in the same package (and
> not the default global package), then you can use `package`
> instead of `private`.
Thanks. "package" scope worked.
this is the code now.
```d
package :
bool misBkClrChanged ;
void setBkClrInternal(HDC dcHandle)
{
RECT rct;
HBRUSH hBr = CreateSolidBrush(cast(COLORREF)
this.mBackColor);
GetClientRect(this.mHandle, ) ;
FillRect(dcHandle, , hBr) ;
DeleteObject(hBr) ;
}
// And this is the wndproc
case WM_ERASEBKGND :
{
if(win.misBkClrChanged)
{
auto dch = cast(HDC) wParam ;
win.setBkClrInternal(dch) ;
return 1 ;
} }
break ;
}
```
Re: Question about property & method access scope.
On Tuesday, 11 May 2021 at 10:47:15 UTC, cc wrote: The `package` protection attribute should work here if the modules reside in the same package (directory)? Thanks. "package" scope worked.
Re: Question about property & method access scope.
On Tuesday, 11 May 2021 at 09:10:02 UTC, Vinod K Chandran wrote: 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. Assuming window.d and wndproc.d are in the same package (and not the default global package), then you can use `package` instead of `private`.
Re: Question about property & method access scope.
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;
}
}
```
Re: Question about property & method access scope.
11.05.2021 12:10, Vinod K Chandran пишет: 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. Make them `protected`?
Question about property & method access scope.
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.
