Now, that we define _WIN32_WINNT as 0x0500, we have no access to guidItem
in NOTIFYICONDATA. Thus, we cannot determine NOTIFYICONDATAW_V2_SIZE.
But in this case, NOTIFYICONDATAW_V2_SIZE is the same as
sizeof(NOTIFYICONDATA).
On Windows CE exists only one version of this struct anyway.

Reviewed-By: mauricek

This is premature and is about to change, probably.

Reviewed-by: thierry

Reviewed-by: Trust Me

The problem was that on Windows, we would activate on WM_LButtonUp,
but a double click after activating will also generate a second
WM_LButtonUp. Hence we get three activations. The fix was basically
to filter out the second WM_LButtonUP, something we also do in
qapplication_win.cpp.

Task-number: 205499
Reviewed-by: denis

This is Windows CE only. For Windows mobile we don't support context
menus for system tray icons.

Task-number: 250528
Reviewed-by: thartman

Also - Make winPeekMessage() & winPostMessage() obsolete
     - FlashWindowEx, IsValidLanguageGroup functions no longer resolved
       dynamically (available on >= Windows 2000)
     - LoadIcon/LoadCursor -> LoadImage w/LR_SHARED for system
       icons/cursors
     - qsystemtrayicon_win: use Shell_NotifyIconGetRect if available
       (Windows 7)

Merge-request: 604
Reviewed-by: Marius Storm-Olsen <marius@trolltech.com>

Reviewed-by: Trust Me