Update all controls using in-place editors to handle Escape/Return correctly.

Define EVT_CHAR_HOOK handlers to ensure that pressing Escape/Return while an
in-place edit control is active affects only it and is not used for the
keyboard navigation.

Closes #9102.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69897 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/treectrl.h

@@ -439,6 +439,13 @@ protected:
     bool        m_quickBestSize;
 
 
+private:
+    // Intercept Escape and Return keys to ensure that our in-place edit
+    // control always gets them before they're used for dialog navigation or
+    // anything else.
+    void OnCharHook(wxKeyEvent& event);
+
+
     wxDECLARE_NO_COPY_CLASS(wxTreeCtrlBase);
 };