int IVsTaskProvider3.OnEndTaskEdit(Microsoft.VisualStudio.Shell.Interop.IVsTaskItem pItem, int fCommitChanges, out int pfAllowChanges)
 {
     pfAllowChanges = VSConstantsEx.FALSE;
     return(VSConstants.E_NOTIMPL);
 }
 int IVsTaskProvider3.OnBeginTaskEdit(Microsoft.VisualStudio.Shell.Interop.IVsTaskItem pItem)
 {
     return(VSConstants.E_NOTIMPL);
 }