Is the window Subclassed

[Grincheux]

How to know if a window is subclassed?
I compare the HINSTANCE of the wndclass structure with the one got with GetWindowLongPtrA.
The result is that no window is subclassed on my pc!


For my program, when I look at its results, I have many windows but I create only one!
If you have any idea.

[John Z]

Well I'm no expert - never found a need to subclass a window.  To do it you need to intentionally make changes, overriding the original so it is not done by itself, or accidentally, as far as I know.  Other than looking at code I don't know if there is a flag or property that indicates a subclassed window or control.

When I run your mGimp program which became Cfe, I count 6 windows before I even try to apply a filter.

John Z

[Grincheux]

Yes but with the last program it shows more...
This is the reason of my question.
Have a look you will be surprised.

[John Z]

OK you are talking about WiW not Cfe.  Running it now. So WiW looking at entries for WiW I see 39 'entries', using Pelles Process Viewer I see WiW using 36 DLL's doesn't seem unreasonable.

Every control is a window.  When I run Cfe then start WiW, WiW doesn't show the Cfe files in the Filename column.

I think I'm just lost here.     No help to you on this.

John Z

[Grincheux]

John this is the part of my problem. I will add the possibility to list all the children and to hook the windows too. To be able to know what is behind.

[John Z]

Is this helpful? "Determining if One Object’s Class Is a Subclass of Another"

https://www.oreilly.com/library/view/c-cookbook/0596007612/ch08s08.html


John Z

Your post on MASM32 Form will probably get a good answer. 

[Grincheux]

Thank You John, but it is C++ and I don't understand. But it seems this not the solution. I have read many posts on it, they all compare the hInstance like I do. I continue to dig...

[frankie]

Try comparing the address of your subclassing procedure with the window stored address.

[Grincheux]

I have made this too