use wxWindow::NewControlId() instead of wxNewId() to avoid clashes with user-defined ids; bug fixes in wxMSW for negative menu and toolbar items ids

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48840 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/treectrl.cpp

@@ -1902,8 +1902,10 @@ bool wxTreeCtrl::MSWShouldPreProcessMessage(WXMSG* msg)
     return wxTreeCtrlBase::MSWShouldPreProcessMessage(msg);
 }
 
-bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
+bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id_)
 {
+    const int id = (signed short)id_;
+
     if ( cmd == EN_UPDATE )
     {
         wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);