[Bug 5341] New: SourceInsight: Missing dock button

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=5341

Summary: SourceInsight: Missing dock button
           Product: Wine
           Version: 0.9.14.
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wine-gui
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Under Windows, the references window in SourceInsight has four buttons: Close,
Maximise, Minimise and Dock. The Dock button is missing under Linux, which means
that the reference window cannot be docked into the main frame.
Note that these are NOT the window-manager's title buttons (see screenshot:
http://appdb.winehq.org/appimage.php?id=2726).