[ros-kernel] Status of Explorer under ReactOS

[Jason Filby]

Hi Filip

Thanks the detailed summary! It would be great if all these bugs were

filed in our Bugzilla installation, are they?

Cheers
Jason

Filip Navara wrote:

>Hi all!
>
>
>
>After few recent messages about the Explorer and announcement of
Richard
>
>Campbell's return I thought it would be good to inform about the
current
>
>state of Explorer under ReactOS. This message is supposed to tell
developers
>
>about possible tasks and also to tell beta-testers what they can
expect.
>
>
>
>WARNING: The next lines represents solely my own thoughts and it can
be far
>
>from correct!
>
>
>
>Current status:
>
>
>
>Basicly it only starts, but almost all need underlying features of
the
>
>system are implemented. There are only bugs, bugs and bugs that
prevent is
>
>from working correctly... :-(
>
>
>
>Known issues:
>
>
>
>* Strings in Start Menu aren't displayed correctly.
>
>In Ansi version of exporer.exe only first letter of Start button and
Start
>
>Menu items is shown. Cause of this bug is unknown, but it works
correctly
>
>with unicode version of explorer.exe.
>
>
>
>* Icons on desktop aren't shown.
>
>There are black (with older CVS snapshots) or white (with > November
31st
>
>2003 CVS) squares displayed instead of real icons. I am not sure,
but I
>
>think the cause of this are unimplemented PrivateExtractIcon[s][AW]
>
>functions in user32.dll.
>
>
>
>* Desktop background is white.
>
>This is not our bug, but rather incompletness of Wine's shell32.dll.
I did a
>
>small patch for this that was persent in my last Wine DLLs snapshot,
but it
>
>wasn't completly correct.
>
>
>
>* Moving with mouse through Start Menu causes kernel mode crash.
>
>Cause of this bug?
>
>      set_focus_window (line ~780) - subsys/win32k/ntuser/window.c
>
>It crashes on line
>
>      Window->MessageQueue->FocusWindow = New;
>
>and now you can guess what window doesn't have message queue? Yes,
it's the
>
>desktop one! And how do we got there? It's called from
WinPosShowWindow
>
>function (when submenu of the Start Menu is hidden). It should be
fairly
>
>easy to fix, but I will not do that because there is plan to move
desktop
>
>handling into CSRSS and that will fix this bug in more clever way.
>
>
>
>* Explorer crashes right after started. (introduced November 2nd
2003)
>
>This bug appered after adding MDI support to user32.dll. It appers
because
>
>before this commit no windows were opened and there were no buttons
on
>
>taskbar. I don't know what's the direct cause of this bug. For now
the only
>
>way to workaround this is to run explorer with parameter
"-noexplorer".
>
>Stack trace:
>
> - DrawIconEx (called with invalid icon handle) -
lib/user32/windows/icon.c
>
> - create_bitmap_from_icon -
subsys/system/explorer/taskbar/taskbar.cpp
>
> ...
>
>
>
>* Explorer browsing doesn't work when run with "-nodesktop".
>
>For some reason IShellFolder::ParseDisplayName (from shell32.dll)
returns
>
>E_INVALIDARG in call from
subsys/system/explorer/utility/shellclasses.h
>
>(line ~ 526) with path "c:\reactos". When you close the message box
shown
>
>and try to click on one of the buttons in toolbar (Shell, A:\, C:\,
...) it
>
>causes usermode exception. Stack trace:
>
> - _splitpath - lib/msvcrt/stdlib/splitp.c
>
> - MainFrame::activate_drive_window -
>
>subsys/system/explorer/shell/mainframe.cpp
>
> - MainFrame::Command - subsys/system/explorer/shell/mainframe.cpp
>
> - Window::WindowWndProc - subsys/system/explorer/utility/window.cpp
>
> - CallWindowProcW - lib/user32/windows/message.c
>
> - User32CallWindowProcFromKernel - lib/user32/windows/window.c
>
> ...
>
>
>
>Feel free comment on this.
>
>
>
>Filip
>
>
>
>P.S. Sorry for my terrible English and ugly writing style. ;-)
>
>
>
>_______________________________________________
>
>Ros-kernel mailing list
>
>Ros-kernel at reactos.com
>
>http://reactos.geldorp.nl:8080/mailman/listinfo/ros-kernel
>
>  
>



__________________________________
Do you Yahoo!?
Protect your identity with Yahoo! Mail AddressGuard
http://antispam.yahoo.com/whatsnewfree