Merges from Scitech Branch (George Davison):

Added wxDisplayChangedEvent and triggering in MSW, when display mode changes
this event gets triggered. I don't know what should happen with other OS's
since I am not familiar with how they handle mode changes.

Watcome Version 11 now compiles with wide character support.

Fixed watcom warnings in
	html/htmlwin.h
	imagbmp.h
	listctrl.h
	imagbmp.cpp
	quantize.cpp
	strconv.cpp
	variant.cpp
	dirctrlg.cpp
	treectlg.cpp
	m_style.cpp
	fontenum.cpp
	listctrl.cpp
	ole\dataobj.cpp
	textctrl.cpp
	window.cpp
	xml.cpp

msw/setup.h
	with watcom version 11 it now compiles with wide character support.

xrc/xml.cpp
	fixed memory leak and compile warnings


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14057 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/window.h

@@ -32,6 +32,11 @@
 
 #include "wx/validate.h"        // for wxDefaultValidator (always include it)
 
+#if wxUSE_PALETTE
+	#include "wx/dcclient.h"
+	#include "wx/palette.h"
+#endif // wxUSE_PALETTE
+
 #if wxUSE_ACCEL
     #include "wx/accel.h"
 #endif // wxUSE_ACCEL
@@ -761,6 +766,21 @@ public:
         // platform-specific APIs
     virtual WXWidget GetHandle() const = 0;
 
+#if wxUSE_PALETTE
+        // Store the palette used by DCs in wxWindow so that the dcs can share
+        // a palette. And we can respond to palette messages.
+    wxPalette GetPalette() const { return m_palette; }
+        // When palette is changed tell the DC to set the system palette to the
+        // new one.
+    void SetPalette(wxPalette &pal) {
+			m_custompalette=true;
+			m_palette=pal;
+            wxWindowDC d((wxWindow *) this);
+			d.SetPalette(pal);
+			}
+    bool HasCustomPalette() { return m_custompalette; }
+#endif // wxUSE_PALETTE
+
 protected:
     // the window id - a number which uniquely identifies a window among
     // its siblings unless it is -1
@@ -844,6 +864,11 @@ protected:
     wxString             m_windowName;
     bool                 m_themeEnabled;
 
+#ifdef wxUSE_PALETTE
+    wxPalette            m_palette;
+    bool                 m_custompalette;
+#endif
+
 protected:
 
     // common part of all ctors: it is not virtual because it is called from