Rationalised style handling in tree control

No longer use WS_EX_WINDOWEDGE since it seems to be obsolete,
and has no effect


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20619 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/treectrl.cpp

@@ -601,14 +601,15 @@ bool wxTreeCtrl::Create(wxWindow *parent,
 {
     Init();
 
+    if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
+        style |= wxBORDER_SUNKEN;
+
     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
         return false;
 
-    DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP |
-                   TVS_SHOWSELALWAYS;
-
-    if ( m_windowStyle & wxCLIP_SIBLINGS )
-        wstyle |= WS_CLIPSIBLINGS;
+    DWORD exStyle = 0;
+    DWORD wstyle = MSWGetStyle(m_windowStyle, & exStyle);
+    wstyle |= WS_TABSTOP | TVS_SHOWSELALWAYS;
 
     if ((m_windowStyle & wxTR_NO_LINES) == 0)
         wstyle |= TVS_HASLINES;

src/msw/window.cpp

@@ -1067,7 +1067,7 @@ WXDWORD wxWindowMSW::MSWGetStyle(long flags, WXDWORD *exstyle) const
                 break;
 
             case wxBORDER_RAISED:
-                *exstyle |= WS_EX_WINDOWEDGE;
+                *exstyle |= WS_EX_DLGMODALFRAME;
                 break;
 
             case wxBORDER_SUNKEN: