X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a09307abba7f837d8bdd8879fe2457efd32e01a8..f1ddb476b1d90a1e24f904eb74462f5dc5165442:/include/wx/propgrid/advprops.h

diff --git a/include/wx/propgrid/advprops.h b/include/wx/propgrid/advprops.h
index bb02c2eaea..9326cc40b9 100644
--- a/include/wx/propgrid/advprops.h
+++ b/include/wx/propgrid/advprops.h
@@ -145,7 +145,7 @@ DECLARE_VARIANT_OBJECT_EXPORTED(wxColourPropertyValue, WXDLLIMPEXP_PROPGRID)
 #endif
 
 #ifndef SWIG
-    #define wxPG_EMPTY_CPV          (*((wxColourPropertyValue*)NULL))
+    #define wxPG_EMPTY_CPV          (*(NULL))
     #define wxPG_NORMAL_FONT        (*wxNORMAL_FONT)
 #else
     #define wxPG_EMPTY_CPV          wxCPV_wxPG_EMPTY
@@ -430,7 +430,8 @@ protected:
     <b>Supported special attributes:</b>
     - "DateFormat": Determines displayed date format.
     - "PickerStyle": Determines window style used with wxDatePickerCtrl.
-       Default is wxDP_DEFAULT | wxDP_SHOWCENTURY.
+       Default is wxDP_DEFAULT | wxDP_SHOWCENTURY. Using wxDP_ALLOWNONE 
+       enables additional support for unspecified property value.
 */
 class WXDLLIMPEXP_PROPGRID wxDateProperty : public wxPGProperty
 {
@@ -442,6 +443,7 @@ public:
                     const wxDateTime& value = wxDateTime() );
     virtual ~wxDateProperty();
 
+    virtual void OnSetValue();
     virtual wxString ValueToString( wxVariant& value, int argFlags = 0 ) const;
     virtual bool StringToValue(wxVariant& variant,
                                const wxString& text,