MainPage_SizeChanged 48 samples/winrt/ImageManipulations/MainPage.xaml.cpp this->SizeChanged += ref new SizeChangedEventHandler(this, &MainPage::MainPage_SizeChanged); MainPage_SizeChanged 98 samples/winrt/ImageManipulations/MainPage.xaml.h void MainPage_SizeChanged(Object^ sender, Windows::UI::Xaml::SizeChangedEventArgs^ e);