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/msw/dc.h

@@ -102,7 +102,13 @@ public:
     virtual void SelectOldObjects(WXHDC dc);
 
     wxWindow *GetWindow() const { return m_canvas; }
-    void SetWindow(wxWindow *win) { m_canvas = win; }
+    void SetWindow(wxWindow *win) {
+        m_canvas = win;
+#if wxUSE_PALETTE
+        // if we have palettes use the correct one for this window
+        InitializePalette();
+#endif
+        }
 
     WXHDC GetHDC() const { return m_hDC; }
     void SetHDC(WXHDC dc, bool bOwnsDC = FALSE)
@@ -184,6 +190,15 @@ protected:
                                int fillStyle = wxODDEVEN_RULE);
 
 
+#if wxUSE_PALETTE
+    // MSW specific, select a logical palette into the HDC
+    // (tell windows to translate pixel from other palettes to our custom one
+    // and vice versa)
+    // Realize tells it to also reset the system palette to this one.
+    void DoSelectPalette(bool realize = false);
+    // Find out what palette our parent window has, then select it into the dc
+    void InitializePalette();
+#endif
     // common part of DoDrawText() and DoDrawRotatedText()
     void DrawAnyText(const wxString& text, wxCoord x, wxCoord y);