X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/efa38350482554cc3547b1f0dea4c70270b07f65..cd5e9298159e58f57e05f3b76c9d4a45e1eefe12:/src/msw/treectrl.cpp

diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp
index e725794176..5628353b4b 100644
--- a/src/msw/treectrl.cpp
+++ b/src/msw/treectrl.cpp
@@ -1514,7 +1514,7 @@ wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
         return TVI_ROOT;
     }
 
-    return DoInsertItem(wxTreeItemId((WXHTREEITEM) 0), (WXHTREEITEM) 0,
+    return DoInsertItem(wxTreeItemId((long)(WXHTREEITEM) 0), (long)(WXHTREEITEM) 0,
                         text, image, selectedImage, data);
 }
 
@@ -1621,11 +1621,8 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag)
                   wxT("Unknown flag in wxTreeCtrl::DoExpand") );
 
     // A hidden root can be neither expanded nor collapsed.
-    if ( (HITEM(item) == TVI_ROOT) && (m_windowStyle & wxTR_HIDE_ROOT) )
-    {
-        // No action will be taken.
-        return;
-    }
+    wxCHECK_RET( !(m_windowStyle & wxTR_HIDE_ROOT) || (HITEM(item) != TVI_ROOT),
+                 wxT("Can't expand/collapse hidden root node!") )
 
     // TreeView_Expand doesn't send TVN_ITEMEXPAND(ING) messages, so we must
     // emulate them. This behaviour has changed slightly with comctl32.dll
@@ -2302,13 +2299,12 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
                 TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
 
-                // we pass 0 as last CreateKeyEvent() parameter because we
+                // we pass 0 as 2 last CreateKeyEvent() parameters because we
                 // don't have access to the real key press flags here - but as
                 // it is only used to determin wxKeyEvent::m_altDown flag it's
                 // not too bad
                 event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,
-                                                wxCharCodeMSWToWX(info->wVKey),
-                                                0);
+                                                wxCharCodeMSWToWX(info->wVKey));
 
                 // a separate event for Space/Return
                 if ( !wxIsCtrlDown() && !wxIsShiftDown() &&