[Bug 59890] New: Windows Forms window size fails to restore after maximize on Xfce

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59890

            Bug ID: 59890
           Summary: Windows Forms window size fails to restore after
                    maximize on Xfce
           Product: Wine
           Version: 11.7
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winex11.drv
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail]
   Regression SHA1: 0f1d999bb878ea54214057d3662c116271ec4812
      Distribution: ---

Created attachment 81213
  --> http://bugs.winehq.org/attachment.cgi?id=81213
windowsform_test.tar

In Windows Forms applications, when attempting to switch to a maximized window,
the RestoreBounds property—which is used to restore the window size — gets
updated. This bug is reproducible in Xfce. When trying to change the window
state, Xfce first sends a ConfigureNotify event with the window size without
changing the state, and then changes the state afterwards. In Windows Forms,
such behavior is interpreted as a resize of a normal window, which leads to
overwriting the RestoreBounds information (the last size for the Normal window
is saved), thus causing the bug.

Below is an example of debug messages at the moment of window size changes:
text

WindowState = Normal
Size = {Width=286, Height=278}
RestoreBounds = {X=1,Y=27,Width=286,Height=278}

WindowState = Normal
Size = {Width=1928, Height=1183}
RestoreBounds = {X=1,Y=27,Width=286,Height=278}

WindowState = Maximized
Size = {Width=1928, Height=1181}
RestoreBounds = {X=-4,Y=21,Width=1928,Height=1183}

The file log.log contains +x11drv,+event.
A test project for Visual Studio is located in windowsform_test.tar.

Steps to reproduce the issue:

1. Click the button; a new window will appear.
2. Move the new window closer to the center.
3. Try to maximize the window and then restore it to the normal state.

As a result, the window will not change its size.

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[Bug 59890] Windows Forms window size fails to restore after maximize on Xfce

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59890

--- Comment #1 from [e-mail] <[e-mail]> ---
Created attachment 81214
  --> http://bugs.winehq.org/attachment.cgi?id=81214
log.log

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