- Edit control uses undocumented window style 0x0200 to detect is it a part
  of combobox. If so it calls GetDlgItem(hwndCombo, 1000) to get ComboLBox
  window handle (see comments for combo.c below).
- EDIT_CheckCombo - modified for correct handling of keyboard messages.
- Processing of WM_GETDLGCODE and WM_CHAR for VK_RETURN and VK_ESCAPE
  depends on whether listbox is dropped down. This prevents closing of dialog
  if listbox is dropped down and allows combobox to process these keyboard
  messages properly.

- When user clicks outside of dropped listbox, original selection must be
  restored.
- ComboLBox has caret_on = FALSE on creation, that's why combobox sends
  LB_CARETON message before dropping listbox down (but only for
  CBS_DROPDOWNLIST - I don't now why).

window ID.  In fact it also must preserve window styles, destroy X
counterpart if parent of popup or overlapped window is set to someting
different from Desktop, and lot of other stuff that it must and mustn't do.
But preserving ID is good enough for now.

- More player/group interface implementation (not tested)

Sheri Steeves
Haithem Hmida
- Height of the listbox should be adjust when LBS_OWNERDRAWFIXED is set
  and not if LBS_OWNERDRAWVARIABLE is set, previously it was not adjusting
  the size in both cases.
- When the caret index change, items repainting need tp be in this
  order
  a) Paint old caret item without the focus
  b) Paint old caret item without the selection
  c) Paint new caret item with the selection
  d) Paint new caret item with the focus.
- When repainting the listbox, we should paint all items regarding if
  they are slected or not and then paint after the focus item. So focus
  item will end out being painted twice. (That's what Windows does).

- Turned on calling convention checking for Win32 functions by
  default.

WM_GETMINMAXINFO message.

from a property sheets.

Enable exception dispatch while on large stack.

against windows thoroughly.  Fixed bug resulting in unsigned values
being passed into LISTVIEW_SetColumnWidth from the listview window
procedure.  Fixed LISTVIEW_GetItemHeight to disregard the height of
icons if no icons exist.

having the control select it.

anyway).

WINEPREFIX.