#include <wx/event.h>

Inheritance diagram for wxMouseEvent:

Detailed Description

This event class contains information about the events generated by the mouse: they include mouse buttons press and release events and mouse move events.

All mouse events involving the buttons use wxMOUSE_BTN_LEFT for the left mouse button, wxMOUSE_BTN_MIDDLE for the middle one and wxMOUSE_BTN_RIGHT for the right one. And if the system supports more buttons, the wxMOUSE_BTN_AUX1 and wxMOUSE_BTN_AUX2 events can also be generated. Note that not all mice have even a middle button so a portable application should avoid relying on the events from it (but the right button click can be emulated using the left mouse button with the control key under Mac platforms with a single button mouse).

For the wxEVT_ENTER_WINDOW and wxEVT_LEAVE_WINDOW events purposes, the mouse is considered to be inside the window if it is in the window client area and not inside one of its children. In other words, the parent window receives wxEVT_LEAVE_WINDOW event not only when the mouse leaves the window entirely but also when it enters one of its children.

The position associated with a mouse event is expressed in the window coordinates of the window which generated the event, you can use wxWindow::ClientToScreen() to convert it to screen coordinates and possibly call wxWindow::ScreenToClient() next to convert it to window coordinates of another window.

Note: Note that under Windows CE mouse enter and leave events are not natively supported by the system but are generated by wxWidgets itself. This has several drawbacks: the LEAVE_WINDOW event might be received some time after the mouse left the window and the state variables for it may have changed during this time.; Note the difference between methods like wxMouseEvent::LeftDown and the inherited wxMouseState::LeftIsDown: the former returns true when the event corresponds to the left mouse button click while the latter returns true if the left mouse button is currently being pressed. For example, when the user is dragging the mouse you can use wxMouseEvent::LeftIsDown to test whether the left mouse button is (still) depressed. Also, by convention, if wxMouseEvent::LeftDown returns true, wxMouseEvent::LeftIsDown will also return true in wxWidgets whatever the underlying GUI behaviour is (which is platform-dependent). The same applies, of course, to other mouse buttons as well.

Events using this class

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

void handlerFuncName(wxMouseEvent& event)

Event macros:

EVT_LEFT_DOWN(func):
Process a wxEVT_LEFT_DOWN event. The handler of this event should normally call event.Skip() to allow the default processing to take place as otherwise the window under mouse wouldn't get the focus.
EVT_LEFT_UP(func):
Process a wxEVT_LEFT_UP event.
EVT_LEFT_DCLICK(func):
Process a wxEVT_LEFT_DCLICK event.
EVT_MIDDLE_DOWN(func):
Process a wxEVT_MIDDLE_DOWN event.
EVT_MIDDLE_UP(func):
Process a wxEVT_MIDDLE_UP event.
EVT_MIDDLE_DCLICK(func):
Process a wxEVT_MIDDLE_DCLICK event.
EVT_RIGHT_DOWN(func):
Process a wxEVT_RIGHT_DOWN event.
EVT_RIGHT_UP(func):
Process a wxEVT_RIGHT_UP event.
EVT_RIGHT_DCLICK(func):
Process a wxEVT_RIGHT_DCLICK event.
EVT_MOUSE_AUX1_DOWN(func):
Process a wxEVT_AUX1_DOWN event.
EVT_MOUSE_AUX1_UP(func):
Process a wxEVT_AUX1_UP event.
EVT_MOUSE_AUX1_DCLICK(func):
Process a wxEVT_AUX1_DCLICK event.
EVT_MOUSE_AUX2_DOWN(func):
Process a wxEVT_AUX2_DOWN event.
EVT_MOUSE_AUX2_UP(func):
Process a wxEVT_AUX2_UP event.
EVT_MOUSE_AUX2_DCLICK(func):
Process a wxEVT_AUX2_DCLICK event.
EVT_MOTION(func):
Process a wxEVT_MOTION event.
EVT_ENTER_WINDOW(func):
Process a wxEVT_ENTER_WINDOW event.
EVT_LEAVE_WINDOW(func):
Process a wxEVT_LEAVE_WINDOW event.
EVT_MOUSEWHEEL(func):
Process a wxEVT_MOUSEWHEEL event.
EVT_MOUSE_EVENTS(func):
Process all mouse events.

Library: wxCore

Category: Events

See Also: wxKeyEvent

Public Member Functions
	wxMouseEvent (wxEventType mouseEventType=wxEVT_NULL)
	Constructor.

bool	Aux1DClick () const
	Returns true if the event was a first extra button double click.

bool	Aux1Down () const
	Returns true if the first extra button mouse button changed to down.

bool	Aux1Up () const
	Returns true if the first extra button mouse button changed to up.

bool	Aux2DClick () const
	Returns true if the event was a second extra button double click.

bool	Aux2Down () const
	Returns true if the second extra button mouse button changed to down.

bool	Aux2Up () const
	Returns true if the second extra button mouse button changed to up.

bool	Button (wxMouseButton but) const
	Returns true if the event was generated by the specified button.

bool	ButtonDClick (wxMouseButton but=wxMOUSE_BTN_ANY) const
	If the argument is omitted, this returns true if the event was a mouse double click event.

bool	ButtonDown (wxMouseButton but=wxMOUSE_BTN_ANY) const
	If the argument is omitted, this returns true if the event was a mouse button down event.

bool	ButtonUp (wxMouseButton but=wxMOUSE_BTN_ANY) const
	If the argument is omitted, this returns true if the event was a mouse button up event.

bool	Dragging () const
	Returns true if this was a dragging event (motion while a button is depressed).

bool	Entering () const
	Returns true if the mouse was entering the window.

int	GetButton () const
	Returns the mouse button which generated this event or `wxMOUSE_BTN_NONE` if no button is involved (for mouse move, enter or leave event, for example).

int	GetClickCount () const
	Returns the number of mouse clicks for this event: 1 for a simple click, 2 for a double-click, 3 for a triple-click and so on.

int	GetLinesPerAction () const
	Returns the configured number of lines (or whatever) to be scrolled per wheel action.

int	GetColumnsPerAction () const
	Returns the configured number of columns (or whatever) to be scrolled per wheel action.

wxPoint	GetLogicalPosition (const wxDC &dc) const
	Returns the logical mouse position in pixels (i.e. translated according to the translation set for the DC, which usually indicates that the window has been scrolled).

int	GetWheelDelta () const
	Get wheel delta, normally 120.

int	GetWheelRotation () const
	Get wheel rotation, positive or negative indicates direction of rotation.

wxMouseWheelAxis	GetWheelAxis () const
	Gets the axis the wheel operation concerns.

bool	IsButton () const
	Returns true if the event was a mouse button event (not necessarily a button down event - that may be tested using ButtonDown()).

bool	IsPageScroll () const
	Returns true if the system has been setup to do page scrolling with the mouse wheel instead of line scrolling.

bool	Leaving () const
	Returns true if the mouse was leaving the window.

bool	LeftDClick () const
	Returns true if the event was a left double click.

bool	LeftDown () const
	Returns true if the left mouse button changed to down.

bool	LeftUp () const
	Returns true if the left mouse button changed to up.

bool	MetaDown () const
	Returns true if the Meta key was down at the time of the event.

bool	MiddleDClick () const
	Returns true if the event was a middle double click.

bool	MiddleDown () const
	Returns true if the middle mouse button changed to down.

bool	MiddleUp () const
	Returns true if the middle mouse button changed to up.

bool	Moving () const
	Returns true if this was a motion event and no mouse buttons were pressed.

bool	RightDClick () const
	Returns true if the event was a right double click.

bool	RightDown () const
	Returns true if the right mouse button changed to down.

bool	RightUp () const
	Returns true if the right mouse button changed to up.

Public Member Functions inherited from wxEvent
	wxEvent (int id=0, wxEventType eventType=wxEVT_NULL)
	Constructor.

virtual wxEvent *	Clone () const =0
	Returns a copy of the event.

wxObject *	GetEventObject () const
	Returns the object (usually a window) associated with the event, if any.

wxEventType	GetEventType () const
	Returns the identifier of the given event type, such as `wxEVT_BUTTON`.

virtual wxEventCategory	GetEventCategory () const
	Returns a generic category for this event.

int	GetId () const
	Returns the identifier associated with this event, such as a button command id.

wxObject *	GetEventUserData () const
	Return the user data associated with a dynamically connected event handler.

bool	GetSkipped () const
	Returns true if the event handler should be skipped, false otherwise.

long	GetTimestamp () const
	Gets the timestamp for the event.

bool	IsCommandEvent () const
	Returns true if the event is or is derived from wxCommandEvent else it returns false.

void	ResumePropagation (int propagationLevel)
	Sets the propagation level to the given value (for example returned from an earlier call to wxEvent::StopPropagation).

void	SetEventObject (wxObject *object)
	Sets the originating object.

void	SetEventType (wxEventType type)
	Sets the event type.

void	SetId (int id)
	Sets the identifier associated with this event, such as a button command id.

void	SetTimestamp (long timeStamp=0)
	Sets the timestamp for the event.

bool	ShouldPropagate () const
	Test if this event should be propagated or not, i.e. if the propagation level is currently greater than 0.

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.

int	StopPropagation ()
	Stop the event from propagating to its parent window.

Public Member Functions inherited from wxObject
	wxObject ()
	Default ctor; initializes to NULL the internal reference data.

	wxObject (const wxObject &other)
	Copy ctor.

virtual	~wxObject ()
	Destructor.

virtual wxClassInfo *	GetClassInfo () const
	This virtual function is redefined for every class that requires run-time type information, when using the wxDECLARE_CLASS macro (or similar).

wxObjectRefData *	GetRefData () const
	Returns the wxObject::m_refData pointer, i.e. the data referenced by this object.

bool	IsKindOf (const wxClassInfo *info) const
	Determines whether this class is a subclass of (or the same class as) the given class.

bool	IsSameAs (const wxObject &obj) const
	Returns true if this object has the same data pointer as obj.

void	Ref (const wxObject &clone)
	Makes this object refer to the data in clone.

void	SetRefData (wxObjectRefData *data)
	Sets the wxObject::m_refData pointer.

void	UnRef ()
	Decrements the reference count in the associated data, and if it is zero, deletes the data.

void	UnShare ()
	This is the same of AllocExclusive() but this method is public.

void	operator delete (void *buf)
	The delete operator is defined for debugging versions of the library only, when the identifier `WXDEBUG` is defined.

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.

Public Member Functions inherited from wxMouseState
	wxMouseState ()
	Default constructor.

wxCoord	GetX () const
	Returns X coordinate of the physical mouse event position.

wxCoord	GetY () const
	Returns Y coordinate of the physical mouse event position.

bool	LeftIsDown () const
	Returns true if the left mouse button is currently down.

bool	MiddleIsDown () const
	Returns true if the middle mouse button is currently down.

bool	RightIsDown () const
	Returns true if the right mouse button is currently down.

bool	Aux1IsDown () const
	Returns true if the first extra button mouse button is currently down.

bool	Aux2IsDown () const
	Returns true if the second extra button mouse button is currently down.

void	SetX (wxCoord x)

void	SetY (wxCoord y)

void	SetPosition (wxPoint pos)

void	SetLeftDown (bool down)

void	SetMiddleDown (bool down)

void	SetRightDown (bool down)

void	SetAux1Down (bool down)

void	SetAux2Down (bool down)

void	SetState (const wxMouseState &state)

wxPoint	GetPosition () const
	Returns the physical mouse position.

void	GetPosition (int x, int y) const
	Returns the physical mouse position.

Public Member Functions inherited from wxKeyboardState
	wxKeyboardState (bool controlDown=false, bool shiftDown=false, bool altDown=false, bool metaDown=false)
	Constructor initializes the modifier key settings.

int	GetModifiers () const
	Return the bit mask of all pressed modifier keys.

bool	HasAnyModifiers () const
	Returns true if any modifiers at all are pressed.

bool	HasModifiers () const
	Returns true if Control or Alt are pressed.

bool	ControlDown () const
	Returns true if the Control key or Apple/Command key under OS X is pressed.

bool	RawControlDown () const
	Returns true if the Control key (also under OS X).

bool	ShiftDown () const
	Returns true if the Shift key is pressed.

bool	MetaDown () const
	Returns true if the Meta/Windows/Apple key is pressed.

bool	AltDown () const
	Returns true if the Alt key is pressed.

bool	CmdDown () const
	Returns true if the key used for command accelerators is pressed.

void	SetControlDown (bool down)

void	SetRawControlDown (bool down)

void	SetShiftDown (bool down)

void	SetAltDown (bool down)

void	SetMetaDown (bool down)

Additional Inherited Members
Protected Member Functions inherited from wxObject
void	AllocExclusive ()
	Ensure that this object's data is not shared with any other object.

virtual wxObjectRefData *	CreateRefData () const
	Creates a new instance of the wxObjectRefData-derived class specific to this object and returns it.

virtual wxObjectRefData *	CloneRefData (const wxObjectRefData *data) const
	Creates a new instance of the wxObjectRefData-derived class specific to this object and initializes it copying data.

Protected Attributes inherited from wxEvent
int	m_propagationLevel
	Indicates how many levels the event can propagate.

Constructor & Destructor Documentation

wxMouseEvent::wxMouseEvent ( wxEventType mouseEventType = wxEVT_NULL )

Constructor.

Valid event types are:

wxEVT_ENTER_WINDOW
wxEVT_LEAVE_WINDOW
wxEVT_LEFT_DOWN
wxEVT_LEFT_UP
wxEVT_LEFT_DCLICK
wxEVT_MIDDLE_DOWN
wxEVT_MIDDLE_UP
wxEVT_MIDDLE_DCLICK
wxEVT_RIGHT_DOWN
wxEVT_RIGHT_UP
wxEVT_RIGHT_DCLICK
wxEVT_AUX1_DOWN
wxEVT_AUX1_UP
wxEVT_AUX1_DCLICK
wxEVT_AUX2_DOWN
wxEVT_AUX2_UP
wxEVT_AUX2_DCLICK
wxEVT_MOTION
wxEVT_MOUSEWHEEL

Member Function Documentation

bool wxMouseEvent::Aux1DClick ( ) const

Returns true if the event was a first extra button double click.

bool wxMouseEvent::Aux1Down ( ) const

Returns true if the first extra button mouse button changed to down.

bool wxMouseEvent::Aux1Up ( ) const

Returns true if the first extra button mouse button changed to up.

bool wxMouseEvent::Aux2DClick ( ) const

Returns true if the event was a second extra button double click.

bool wxMouseEvent::Aux2Down ( ) const

Returns true if the second extra button mouse button changed to down.

bool wxMouseEvent::Aux2Up ( ) const

Returns true if the second extra button mouse button changed to up.

bool wxMouseEvent::Button ( wxMouseButton but ) const

Returns true if the event was generated by the specified button.

See Also: wxMouseState::ButtoinIsDown()

bool wxMouseEvent::ButtonDClick ( wxMouseButton but = wxMOUSE_BTN_ANY ) const

If the argument is omitted, this returns true if the event was a mouse double click event.

Otherwise the argument specifies which double click event was generated (see Button() for the possible values).

bool wxMouseEvent::ButtonDown ( wxMouseButton but = wxMOUSE_BTN_ANY ) const

If the argument is omitted, this returns true if the event was a mouse button down event.

Otherwise the argument specifies which button-down event was generated (see Button() for the possible values).

bool wxMouseEvent::ButtonUp ( wxMouseButton but = wxMOUSE_BTN_ANY ) const

If the argument is omitted, this returns true if the event was a mouse button up event.

Otherwise the argument specifies which button-up event was generated (see Button() for the possible values).

bool wxMouseEvent::Dragging ( ) const

Returns true if this was a dragging event (motion while a button is depressed).

See Also: Moving()

bool wxMouseEvent::Entering ( ) const

Returns true if the mouse was entering the window.

See Also: Leaving()

int wxMouseEvent::GetButton ( ) const

Returns the mouse button which generated this event or wxMOUSE_BTN_NONE if no button is involved (for mouse move, enter or leave event, for example).

Otherwise wxMOUSE_BTN_LEFT is returned for the left button down, up and double click events, wxMOUSE_BTN_MIDDLE and wxMOUSE_BTN_RIGHT for the same events for the middle and the right buttons respectively.

int wxMouseEvent::GetClickCount ( ) const

Returns the number of mouse clicks for this event: 1 for a simple click, 2 for a double-click, 3 for a triple-click and so on.

Currently this function is implemented only in wxMac and returns -1 for the other platforms (you can still distinguish simple clicks from double-clicks as they generate different kinds of events however).

Since: 2.9.0

int wxMouseEvent::GetColumnsPerAction ( ) const

Returns the configured number of columns (or whatever) to be scrolled per wheel action.

Default value under most platforms is three.

See Also: GetLinesPerAction()

Since: 2.9.5

int wxMouseEvent::GetLinesPerAction ( ) const

Returns the configured number of lines (or whatever) to be scrolled per wheel action.

Default value under most platforms is three.

See Also: GetColumnsPerAction()

wxPoint wxMouseEvent::GetLogicalPosition ( const wxDC & dc ) const

Returns the logical mouse position in pixels (i.e. translated according to the translation set for the DC, which usually indicates that the window has been scrolled).

wxMouseWheelAxis wxMouseEvent::GetWheelAxis ( ) const

Gets the axis the wheel operation concerns.

Usually the mouse wheel is used to scroll vertically so wxMOUSE_WHEEL_VERTICAL is returned but some mice (and most trackpads) also allow to use the wheel to scroll horizontally in which case wxMOUSE_WHEEL_HORIZONTAL is returned.

Notice that before wxWidgets 2.9.4 this method returned int.

int wxMouseEvent::GetWheelDelta ( ) const

Get wheel delta, normally 120.

This is the threshold for action to be taken, and one such action (for example, scrolling one increment) should occur for each delta.

int wxMouseEvent::GetWheelRotation ( ) const

Get wheel rotation, positive or negative indicates direction of rotation.

Current devices all send an event when rotation is at least +/-WheelDelta, but finer resolution devices can be created in the future.

Because of this you shouldn't assume that one event is equal to 1 line, but you should be able to either do partial line scrolling or wait until several events accumulate before scrolling.

bool wxMouseEvent::IsButton ( ) const

Returns true if the event was a mouse button event (not necessarily a button down event - that may be tested using ButtonDown()).

bool wxMouseEvent::IsPageScroll ( ) const

Returns true if the system has been setup to do page scrolling with the mouse wheel instead of line scrolling.

bool wxMouseEvent::Leaving ( ) const

Returns true if the mouse was leaving the window.

See Also: Entering().

bool wxMouseEvent::LeftDClick ( ) const

Returns true if the event was a left double click.

bool wxMouseEvent::LeftDown ( ) const

Returns true if the left mouse button changed to down.

bool wxMouseEvent::LeftUp ( ) const

Returns true if the left mouse button changed to up.

bool wxMouseEvent::MetaDown ( ) const

Returns true if the Meta key was down at the time of the event.

bool wxMouseEvent::MiddleDClick ( ) const

Returns true if the event was a middle double click.

bool wxMouseEvent::MiddleDown ( ) const

Returns true if the middle mouse button changed to down.

bool wxMouseEvent::MiddleUp ( ) const

Returns true if the middle mouse button changed to up.

bool wxMouseEvent::Moving ( ) const

Returns true if this was a motion event and no mouse buttons were pressed.

If any mouse button is held pressed, then this method returns false and Dragging() returns true.

bool wxMouseEvent::RightDClick ( ) const

Returns true if the event was a right double click.

bool wxMouseEvent::RightDown ( ) const

Returns true if the right mouse button changed to down.

bool wxMouseEvent::RightUp ( ) const

Returns true if the right mouse button changed to up.

Detailed Description

Events using this class

Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation