[Bug 38409] Wine's task tray is not shown in the taskbar in KDE 5

https://bugs.winehq.org/show_bug.cgi?id=38409

--- Comment #14 from Alexey Min  ---
Created attachment 52966
  --> https://bugs.winehq.org/attachment.cgi?id=52966
Huge patch adding StatusNotifierItem support

Patched dlls/winex11.drv/systray.c @ wine_notify_icon() using raw libdbus to
implement basic StatusNotifierItem support for tray icon operations, usually
invoked by Shell_NotifyIcon().

What works:
 * tray icon
 * tooltip text
 * mouse clicks and double clicks on tray icon

What is currently not done, but possible:
 * tray balloon popup message

What is not possible:
 * mouse move event from tray (WM_MOUSEMOVE)