- Moved wxApp::SendIdleEvents and wxApp::ProcessIdle into common code.

- wxWindow::OnInternalIdle is now used in all ports, and ensures that
  user OnIdle events do not interfere with crucial internal processing.
- wxWindow::UpdateWindowUI is now a documented function that
  sends wxUpdateUIEvents, and can be overridden. It has a helper function
  DoUpdateWindowUI for taking appropriate wxUpdateUIEvent action.
- Added functions to wxUpdateUIEvent: Set/GetMode, Set/GetUpdateInterval,
  CanUpdate, to assist with optimising update event frequency.
- Added functions to wxIdleEvent: Set/GetMode, CanSend, to
  determine whether a window should receive idle events.
- Added wxWS_EX_PROCESS_IDLE, wxWS_EX_PROCESS_UI_UPDATES window
  styles for use with conservative idle and update event modes.
- wxMSW and wxGTK now send menu update events only when a menu is
  about to be used.
- Added WM_INITMENU processing instead of WM_ENTERMENULOOP, or
  accelerators don't always get called since menu items may still
  be disabled.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@21789 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/defs.h

@@ -1033,6 +1033,12 @@ enum wxBorder
 // possibly be made to work in the future, at least on Windows
 #define wxWS_EX_THEMED_BACKGROUND       0x00000008
 
+// this window should always process idle events
+#define wxWS_EX_PROCESS_IDLE            0x00000010
+
+// this window should always process UI update events
+#define wxWS_EX_PROCESS_UI_UPDATES      0x00000020
+
 // Use this style to add a context-sensitive help to the window (currently for
 // Win32 only and it doesn't work if wxMINIMIZE_BOX or wxMAXIMIZE_BOX are used)
 #define wxFRAME_EX_CONTEXTHELP  0x00000004
@@ -1860,6 +1866,17 @@ enum wxPrintMode
     wxPRINT_MODE_PRINTER = 3    // Send to printer
 };
 
+// ----------------------------------------------------------------------------
+// UpdateWindowUI flags
+// ----------------------------------------------------------------------------
+
+enum wxUpdateUI
+{
+    wxUPDATE_UI_NONE          = 0x0000,
+    wxUPDATE_UI_RECURSE       = 0x0001,
+    wxUPDATE_UI_FROMIDLE      = 0x0002 // Invoked from On(Internal)Idle
+};
+
 // ----------------------------------------------------------------------------
 // miscellaneous
 // ----------------------------------------------------------------------------