cpp-docs/docs/cppcx/codesnippet/CPP/delegatesevents/class1.h at main · MicrosoftDocs/cpp-docs · GitHub

Name: cpp-docs/docs/cppcx/codesnippet/CPP/delegatesevents/class1.h at main · MicrosoftDocs/cpp-docs · GitHub
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#pragma once
#include<collection.h>

namespaceOther
{


}

namespaceDelegatesEvents
{
 ref classContactInfo;

// <snippet111>
 public delegate Platform::String^ CustomStringDelegate(ContactInfo^ ci);
// </snippet111>

 public delegate Platform::String^ CustomGreeting(ContactInfo^ ci);

 public delegate voidCustomDelegate(Platform::Object^ sender, Platform::String^ arg);

//<snippet112>
 public ref classContactInfo sealed
 {
public:
ContactInfo(){}
ContactInfo(Platform::String^ saluation, Platform::String^ last, Platform::String^ first, Platform::String^ address1);
 property Platform::String^ Salutation;
 property Platform::String^ LastName;
 property Platform::String^ FirstName;
 property Platform::String^ Address1;
//...other properties

 Platform::String^ ToCustomString(CustomStringDelegate^ func)
 {
returnfunc(this);
 }
 };
//</snippet112>

//<snippet116>
 generic <typename T>
 delegate voidMyEventHandler(T p1, T p2);
//</snippet116>

//<snippet117>
 MyEventHandler<float>^ myDelegate;
//</snippet117>

 public ref classClass1 sealed
 {
public:
Class1();
voidTestDelegate();
static Platform::String^ GetFirstAndLast(ContactInfo^ info);
 Platform::String^ GetSalutationAndLast(ContactInfo^ info);
voidConstructDelegate();
 Windows::Foundation::Collections::IVector<Platform::String^>^ GetCustomContactStrings(CustomStringDelegate^ del);

 property CustomGreeting^ StoredDelegate;
voidTestTemplate();

 Platform::String^ CreateGreeting()
 {
returnStoredDelegate(m_contacts->GetAt(0));
 }


private:
 Platform::Collections::Vector<ContactInfo^>^ m_contacts;
 CustomGreeting^ _d;

 };

 public ref classClass2 sealed
 {
public:
 event CustomDelegate^ OnStringChanged;
voidDoSomethingWithAString(Platform::String^ str)
 {
 m_str = str + "Test";
OnStringChanged(this, m_str);
 }

private:
 Platform::String^ m_str;
 };


template<typename T, classI>
 ref classMyClass
 {
public:
MyClass(T s) {}
 };

template<> ref classMyClass<Platform::String^, int> sealed
 {
public:
MyClass(Platform::String^ s) {}
voidDoSomething(int i){}
 };

//<snippet120>
 [Windows::Foundation::Metadata::WebHostHiddenAttribute]
 ref classApp sealed
 {
voidInitializeSensor();
voidSensorReadingEventHandler(Windows::Devices::Sensors::LightSensor^ sender,
 Windows::Devices::Sensors::LightSensorReadingChangedEventArgs^ args);

float m_oldReading;
 Windows::Devices::Sensors::LightSensor^ m_sensor;

 };
//</snippet120>


//<snippet122>
 public delegate voidRoutedEventHandler(
 Platform::Object^ sender,
 Windows::UI::Xaml::RoutedEventArgs^ e
 );
//</snippet122>
}