Version: 3.1.1
wxActiveXEvent Class Reference

#include <wx/msw/ole/activex.h>

+ Inheritance diagram for wxActiveXEvent:

Detailed Description

An event class for handling ActiveX events passed from wxActiveXContainer.

ActiveX events are basically a function call with the parameters passed through an array of wxVariants along with a return value that is a wxVariant itself. What type the parameters or return value are depends on the context (i.e. what the .idl specifies).

Events using this class

The following event handler macros redirect the events to member function handlers 'func' with prototypes like:

void handlerFuncName(wxActiveXEvent& event)

Event macros:

  • EVT_ACTIVEX(func):
    Sent when the ActiveX control hosted by wxActiveXContainer receives an ActiveX event.

ActiveX event parameters can get extremely complex and may be beyond the abilities of wxVariant. If 'operator[]' fails, prints an error messages or crashes the application, event handlers should use GetNativeParameters() instead to obtain the original event information. Calls to operator[] and GetNativeParmeters() can be mixed. It is valid to handle some parameters of an event with operator[] and others directly through GetNativeParameters(). It is not valid however to manipulate the same parameter using both approaches at the same time.

Availability:  only available for the wxMSW port.

Library:  wxCore
Category:  Events

Public Member Functions

DISPID GetDispatchId (int idx) const
 Returns the dispatch id of this ActiveX event. More...
 
size_t ParamCount () const
 Obtains the number of parameters passed through the ActiveX event. More...
 
wxString ParamName (size_t idx) const
 Obtains the param name of the param number idx specifies as a string. More...
 
wxString ParamType (size_t idx) const
 Obtains the param type of the param number idx specifies as a string. More...
 
wxVariant operator[] (size_t idx)
 Obtains the actual parameter value specified by idx. More...
 
wxActiveXEventNativeMSW * GetNativeParameters () const
 Obtain the original MSW parameters for the event. More...
 
- Public Member Functions inherited from wxCommandEvent
 wxCommandEvent (wxEventType commandEventType=wxEVT_NULL, int id=0)
 Constructor. More...
 
void * GetClientData () const
 Returns client data pointer for a listbox or choice selection event (not valid for a deselection). More...
 
wxClientDataGetClientObject () const
 Returns client object pointer for a listbox or choice selection event (not valid for a deselection). More...
 
long GetExtraLong () const
 Returns extra information dependent on the event objects type. More...
 
int GetInt () const
 Returns the integer identifier corresponding to a listbox, choice or radiobox selection (only if the event was a selection, not a deselection), or a boolean value representing the value of a checkbox. More...
 
int GetSelection () const
 Returns item index for a listbox or choice selection event (not valid for a deselection). More...
 
wxString GetString () const
 Returns item string for a listbox or choice selection event. More...
 
bool IsChecked () const
 This method can be used with checkbox and menu events: for the checkboxes, the method returns true for a selection event and false for a deselection one. More...
 
bool IsSelection () const
 For a listbox or similar event, returns true if it is a selection, false if it is a deselection. More...
 
void SetClientData (void *clientData)
 Sets the client data for this event. More...
 
void SetClientObject (wxClientData *clientObject)
 Sets the client object for this event. More...
 
void SetExtraLong (long extraLong)
 Sets the m_extraLong member. More...
 
void SetInt (int intCommand)
 Sets the m_commandInt member. More...
 
void SetString (const wxString &string)
 Sets the m_commandString member. More...
 
- Public Member Functions inherited from wxEvent
 wxEvent (int id=0, wxEventType eventType=wxEVT_NULL)
 Constructor. More...
 
virtual wxEventClone () const =0
 Returns a copy of the event. More...
 
wxObjectGetEventObject () const
 Returns the object (usually a window) associated with the event, if any. More...
 
wxEventType GetEventType () const
 Returns the identifier of the given event type, such as wxEVT_BUTTON. More...
 
virtual wxEventCategory GetEventCategory () const
 Returns a generic category for this event. More...
 
int GetId () const
 Returns the identifier associated with this event, such as a button command id. More...
 
wxObjectGetEventUserData () const
 Return the user data associated with a dynamically connected event handler. More...
 
bool GetSkipped () const
 Returns true if the event handler should be skipped, false otherwise. More...
 
long GetTimestamp () const
 Gets the timestamp for the event. More...
 
bool IsCommandEvent () const
 Returns true if the event is or is derived from wxCommandEvent else it returns false. More...
 
void ResumePropagation (int propagationLevel)
 Sets the propagation level to the given value (for example returned from an earlier call to wxEvent::StopPropagation). More...
 
void SetEventObject (wxObject *object)
 Sets the originating object. More...
 
void SetEventType (wxEventType type)
 Sets the event type. More...
 
void SetId (int id)
 Sets the identifier associated with this event, such as a button command id. More...
 
void SetTimestamp (long timeStamp=0)
 Sets the timestamp for the event. More...
 
bool ShouldPropagate () const
 Test if this event should be propagated or not, i.e. if the propagation level is currently greater than 0. More...
 
void Skip (bool skip=true)
 This method can be used inside an event handler to control whether further event handlers bound to this event will be called after the current one returns. More...
 
int StopPropagation ()
 Stop the event from propagating to its parent window. More...
 
- Public Member Functions inherited from wxObject
 wxObject ()
 Default ctor; initializes to NULL the internal reference data. More...
 
 wxObject (const wxObject &other)
 Copy ctor. More...
 
virtual ~wxObject ()
 Destructor. More...
 
virtual wxClassInfoGetClassInfo () const
 This virtual function is redefined for every class that requires run-time type information, when using the wxDECLARE_CLASS macro (or similar). More...
 
wxObjectRefDataGetRefData () const
 Returns the wxObject::m_refData pointer, i.e. the data referenced by this object. More...
 
bool IsKindOf (const wxClassInfo *info) const
 Determines whether this class is a subclass of (or the same class as) the given class. More...
 
bool IsSameAs (const wxObject &obj) const
 Returns true if this object has the same data pointer as obj. More...
 
void Ref (const wxObject &clone)
 Makes this object refer to the data in clone. More...
 
void SetRefData (wxObjectRefData *data)
 Sets the wxObject::m_refData pointer. More...
 
void UnRef ()
 Decrements the reference count in the associated data, and if it is zero, deletes the data. More...
 
void UnShare ()
 This is the same of AllocExclusive() but this method is public. More...
 
void operator delete (void *buf)
 The delete operator is defined for debugging versions of the library only, when the identifier WXDEBUG is defined. More...
 
void * operator new (size_t size, const wxString &filename=NULL, int lineNum=0)
 The new operator is defined for debugging versions of the library only, when the identifier WXDEBUG is defined. More...
 

Additional Inherited Members

- Protected Member Functions inherited from wxObject
void AllocExclusive ()
 Ensure that this object's data is not shared with any other object. More...
 
virtual wxObjectRefDataCreateRefData () const
 Creates a new instance of the wxObjectRefData-derived class specific to this object and returns it. More...
 
virtual wxObjectRefDataCloneRefData (const wxObjectRefData *data) const
 Creates a new instance of the wxObjectRefData-derived class specific to this object and initializes it copying data. More...
 
- Protected Attributes inherited from wxEvent
int m_propagationLevel
 Indicates how many levels the event can propagate. More...
 
- Protected Attributes inherited from wxObject
wxObjectRefDatam_refData
 Pointer to an object which is the object's reference-counted data. More...
 

Member Function Documentation

DISPID wxActiveXEvent::GetDispatchId ( int  idx) const

Returns the dispatch id of this ActiveX event.

This is the numeric value from the .idl file specified by the id().

wxActiveXEventNativeMSW* wxActiveXEvent::GetNativeParameters ( ) const

Obtain the original MSW parameters for the event.

Event handlers can use this information to handle complex event parameters that are beyond the scope of wxVariant. The information returned here is the information passed to the original 'Invoke' method call.

Returns
a pointer to a struct containing the original MSW event parameters
wxVariant wxActiveXEvent::operator[] ( size_t  idx)

Obtains the actual parameter value specified by idx.

size_t wxActiveXEvent::ParamCount ( ) const

Obtains the number of parameters passed through the ActiveX event.

wxString wxActiveXEvent::ParamName ( size_t  idx) const

Obtains the param name of the param number idx specifies as a string.

wxString wxActiveXEvent::ParamType ( size_t  idx) const

Obtains the param type of the param number idx specifies as a string.