Statusbar's grip and Win11

[zoltanleo]

Hi all

I found that grip icon/sign in status bar is not drawn correctly for win 11.
Can anybody create the ticket for bugtracker?

Do you think this behavior is correct?

[speter]

Can you explain the problem?
The win 11 status bar looks ok; except for the curving window (which is part of win 11).

cheers
S.

[zoltanleo]

Hi speter

IMHO, the rounded corner of the window should "cut off" part of the grip. It should look like this (see attachment).

[wp]

It should look like this.

Sorry, I don't understand. It DOES look exactly like you show, in both Lazarus and Delphi.

[AlexTP]

No, it is the duty of OS, to cut the image in the corner, not the duty of app. Image is painted via WinAPI.

[MarkMLl]

Please excuse a comment from somebody who has not touched Windows for decades.

No, it is the duty of OS, to cut the image in the corner, not the duty of app. Image is painted via WinAPI.

It is, but there's potential for confusion here if inheriting extremely old Windows code.

When the grip was first introduced it was possible to mark an arbitrary bitmap as having the grip property for a window, hence e.g. the screenshot attached.

Code: Pascal  [Select][+][-]

1. procedure TPollPxxD3.GripImageMouseDown(Sender: TObject; Button: TMouseButton;
2.                                                 Shift: TShiftState; X, Y: Integer);
3.  
4. (* Magic code from adr@cix who notes "The value 8 is a complete mystery *)
5. (* to me, I can't find any documentation on it. I found it by           *)
6. (* experimentation."                                                    *)
7.  
8. begin
9.   ReleaseCapture;
10.   Perform(WM_SYSCOMMAND, SC_SIZE + 8, 0)
11. end (* TPollPxxD3.GripImageMouseDown *) ;
12.  

Legacy code might still have something like that, which could easily confuse a modern OS.

MarkMLl

[zoltanleo]

Sorry, I don't understand. It DOES look exactly like you show, in both Lazarus and Delphi.

I apologize for some confusion. I had to first tell a short background of the subject.

In one of the Russian-speaking telegram groups, there was a discussion of the new win11 style (https:/"]Blocked/Delphi_Lazarus_offtop/60179) and some users drew attention to the subject. They considered such a rendering of the grip not entirely correct. Many agreed that it would be a good idea to fix this (for both Lazarus and Delphi) by changing the source code.

Therefore, I described this situation.

[wp]

They considered such a rendering of the grip not entirely correct. Many agreed that it would be a good idea to fix this (for both Lazarus and Delphi) by changing the source code.

I still don't understand what is wrong with rendering of the size grip. I also checked Notepad++ which certainly is not a Delphi/Lazarus program, and it shows the size grip in the same way. This is clear to me because the size grip is rendered by Windows, not by a user application.

[zoltanleo]

This is clear to me because the size grip is rendered by Windows, not by a user application.

Ok. I give up. So be it.