New clipboard formats had been registered for them, but that was pointless.
No Windows app would ever expect or make use of such clipboard formats or the
associated pasteboard data.
It has a non-object pointer from the caller, so it can't allow the caller
to continue until it's finished with it. Also, it discards events from the
event queue and we don't want the caller to process them first.
Fixes brokenness introduced by 784a9139.
Some programs minimize windows which are outside of the desktop. The Mac
driver had been leaving such windows ordered out, which prevented them from
minimizing and appearing on the Dock. That, in turn, made it difficult for
the user to restore them.
Queries can be run out of order because the main thread is waiting on the
response. The main thread didn't really need a response from QUERY_RESIZE_END.
It was only a query for symmetry with QUERY_RESIZE_START.
The Mac driver was already sending these events when the user resizes the
window by dragging its corner/edges, but there are other occasions when the
window frame changes. For example, when the user zooms the window.
The tracking of whether it is over a window or not is only updated when the
mouse moves. If a window was created or moved under it, then the state can be
stale. That caused us to defer hiding the cursor until the mouse was moved.
This happens at the start of games pretty often.
The main dispatch queue is a serial queue and is a shared resource. If we
submit a long-running task to it, then no other tasks, including those submitted
by the system frameworks, can run until it completes.
The standard keyboard shortcut for switching the keyboard layout is Command-
Space, but the Mac driver never sees the Space key press. So, Wine only sees
a press and release of Alt, which puts focus on the menu bar. This prevents
that focus change.
The code had previously set the cursor back to the standard arrow and unhid
it when it left all app windows. Now it restores the cursor image that the
app set and re-hides it if necessary when it moves back over any app window.
Some events get queued for all GUI-connected threads but are only processed
by the first to dequeue them. Other threads which tend their event queue
discard such already-processed events. However, some threads may be
connected to the GUI but never tend their event queue. To prevent such
threads from accumulating zombie events, the zombies are cleared each time a
new event is queued.
Ken Thomases