Added ability to call wxWindow::OnPaint under Windows (experimental).

Added wxTR_NO_LINES to remove lines from tree control (MSW only).


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@7925 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/defs.h

@@ -1087,6 +1087,7 @@ enum wxStretch
 #define wxTR_MULTIPLE        0x0020
 #define wxTR_EXTENDED        0x0040
 #define wxTR_HAS_VARIABLE_ROW_HEIGHT 0x0080
+#define wxTR_NO_LINES        0x0100
 
 /*
  * wxListCtrl flags

include/wx/msw/dcclient.h

@@ -74,6 +74,9 @@ public:
 
     virtual ~wxPaintDC();
 
+    // find the entry for this DC in the cache (keyed by the window)
+    static WXHDC FindDCInCache(wxWindow* win);
+
 protected:
     static wxArrayDCInfo ms_cache;
 

include/wx/msw/window.h

@@ -185,6 +185,7 @@ public:
     void OnSetFocus(wxFocusEvent& event);
     void OnEraseBackground(wxEraseEvent& event);
     void OnIdle(wxIdleEvent& event);
+    void OnPaint(wxPaintEvent& event);
 
 public:
     // For implementation purposes - sometimes decorations make the client area