The base class for classes that represent a context that is passed to the event subscribers when an event is triggered. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument. More...
#include <eventargs.h>
Inherits System::Object.
Inherited by , System::ComponentModel::AsyncCompletedEventArgs, System::ComponentModel::CancelEventArgs, System::ComponentModel::ProgressChangedEventArgs, System::ComponentModel::PropertyChangedEventArgs, System::Drawing::Printing::PrintPageEventArgs, System::Timers::ElapsedEventArgs, System::Xml::Schema::ValidationEventArgs, and System::Xml::XmlNodeChangedEventArgs.
Public Member Functions | |
ASPOSECPP_SHARED_API | EventArgs () |
Constructor. | |
Public Member Functions inherited from System::Object | |
ASPOSECPP_SHARED_API | Object () |
Creates object. Initializes all internal data structures. | |
virtual ASPOSECPP_SHARED_API | ~Object () |
Destroys object. Frees all internal data structures. | |
ASPOSECPP_SHARED_API | Object (Object const &x) |
Copy constructor. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. | |
Object & | operator= (Object const &x) |
Assignment operator. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. | |
Object * | SharedRefAdded () |
Increments shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. | |
int | SharedRefRemovedSafe () |
Decrements and returns shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. | |
int | RemovedSharedRefs (int count) |
Decreases shared reference count by specified value. | |
Detail::SmartPtrCounter * | WeakRefAdded () |
Increments weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. | |
void | WeakRefRemoved () |
Decrements weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. | |
Detail::SmartPtrCounter * | GetCounter () |
Gets reference counter data structure associated with the object. | |
int | SharedCount () const |
Gets current value of shared reference counter. | |
ASPOSECPP_SHARED_API void | Lock () |
Implements C# lock() statement locking. Call directly or use LockContext sentry object. | |
ASPOSECPP_SHARED_API void | Unlock () |
Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. | |
virtual ASPOSECPP_SHARED_API bool | Equals (ptr obj) |
Compares objects using C# Object.Equals semantics. | |
virtual ASPOSECPP_SHARED_API int32_t | GetHashCode () const |
Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. | |
virtual ASPOSECPP_SHARED_API String | ToString () const |
Analog of C# Object.ToString() method. Enables converting custom objects to string. | |
virtual ASPOSECPP_SHARED_API ptr | MemberwiseClone () const |
Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. | |
virtual ASPOSECPP_SHARED_API const TypeInfo & | GetType () const |
Gets actual type of object. Analog of C# System.Object.GetType() call. | |
virtual ASPOSECPP_SHARED_API bool | Is (const TypeInfo &targetType) const |
Check if object represents an instance of type described by targetType. Analog of C# 'is' operator. | |
virtual ASPOSECPP_SHARED_API void | SetTemplateWeakPtr (uint32_t argument) |
Set n'th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. | |
virtual ASPOSECPP_SHARED_API bool | FastCast (const Details::FastRttiBase &helper, void **out_ptr) const |
For internal purposes only. | |
template<> | |
bool | ReferenceEquals (String const &str, std::nullptr_t) |
Specialization of Object::ReferenceEquals for case of string and nullptr. | |
template<> | |
bool | ReferenceEquals (String const &str1, String const &str2) |
Specialization of Object::ReferenceEquals for case of strings. | |
Static Public Attributes | |
static ASPOSECPP_SHARED_API EventArgsPtr | Empty |
A static member that represents an "empty" EventArgs shared pointer (null-pointer). | |
Additional Inherited Members | |
Public Types inherited from System::Object | |
typedef SmartPtr< Object > | ptr |
Alias for smart pointer type. | |
Static Public Member Functions inherited from System::Object | |
static bool | ReferenceEquals (ptr const &objA, ptr const &objB) |
Compares objects by reference. | |
template<typename T > | |
static std::enable_if<!IsSmartPtr< T >::value, bool >::type | ReferenceEquals (T const &objA, T const &objB) |
Compares objects by reference. | |
template<typename T > | |
static std::enable_if<!IsSmartPtr< T >::value, bool >::type | ReferenceEquals (T const &objA, std::nullptr_t) |
Reference-compares value type object with nullptr. | |
template<typename T1 , typename T2 > | |
static std::enable_if< IsSmartPtr< T1 >::value &&IsSmartPtr< T2 >::value, bool >::type | Equals (T1 const &objA, T2 const &objB) |
Compares reference type objects in C# style. | |
template<typename T1 , typename T2 > | |
static std::enable_if<!IsSmartPtr< T1 >::value &&!IsSmartPtr< T2 >::value, bool >::type | Equals (T1 const &objA, T2 const &objB) |
Compares value type objects in C# style. | |
static const TypeInfo & | Type () |
Implements C# typeof(System.Object) construct. | |
template<> | |
bool | Equals (float const &objA, float const &objB) |
Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. | |
template<> | |
bool | Equals (double const &objA, double const &objB) |
Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. | |
The base class for classes that represent a context that is passed to the event subscribers when an event is triggered. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument.
ASPOSECPP_SHARED_API System::EventArgs::EventArgs | ( | ) |
Constructor.
|
static |
A static member that represents an "empty" EventArgs shared pointer (null-pointer).