wx.IdleEvent

Package wx :: Class IdleEvent

Type IdleEvent

object --+        
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    Object --+    
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         Event --+
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                IdleEvent

This class is used for EVT_IDLE events, which are generated and sent when the application becomes idle. In other words, the when the event queue becomes empty then idle events are sent to all windows (by default) and as long as none of them call RequestMore then there are no more idle events until after the system event queue has some normal events and then becomes empty again.

By default, idle events are sent to all windows. If this is causing a significant overhead in your application, you can call wx.IdleEvent.SetMode with the value wx.IDLE_PROCESS_SPECIFIED, and set the wx.WS_EX_PROCESS_IDLE extra window style for every window which should receive idle events. Then idle events will only be sent to those windows and not to any others.

Method Summary
IdleEvent	`__init__(self)` Constructor
	`__repr__(self)`
bool	`CanSend(win)` Returns `True` if it is appropriate to send idle events to this window. (Static method)
int	`GetMode()` Static method returning a value specifying how wxWidgets will send idle events: to all windows, or only to those which specify that they will process the events. (Static method)
bool	`MoreRequested(self)` Returns `True` if the OnIdle function processing this event requested more processing time.
	`RequestMore(self, needMore)` Tells wxWidgets that more processing is required.
	`SetMode(mode)` Static method for specifying how wxWidgets will send idle events: to all windows, or only to those which specify that they will process the events. (Static method)

Instance Method Details

init(self)
(Constructor)

Constructor

Returns:: IdleEvent

Overrides:: wx.Event.__init__

MoreRequested(self)

Returns True if the OnIdle function processing this event requested more processing time.

Returns:: bool

RequestMore(self, needMore=True)

Tells wxWidgets that more processing is required. This function can be called by an EVT_IDLE handler for a window to indicate that the application should forward the EVT_IDLE event once more to the application windows. If no window calls this function during its EVT_IDLE handler, then the application will remain in a passive event loop until a new event is posted to the application by the windowing system.

Parameters:: needMore
(type=bool)

Static Method Details

CanSend(win)

Returns True if it is appropriate to send idle events to this window.

This function looks at the mode used (see wx.IdleEvent.SetMode), and the wx.WS_EX_PROCESS_IDLE style in window to determine whether idle events should be sent to this window now. By default this will always return True because the update mode is initially wx.IDLE_PROCESS_ALL. You can change the mode to only send idle events to windows with the wx.WS_EX_PROCESS_IDLE extra window style set.

Parameters:: win
(type=Window)

Returns:: bool

GetMode()

Static method returning a value specifying how wxWidgets will send idle events: to all windows, or only to those which specify that they will process the events.

Returns:: int

SetMode(mode)

Static method for specifying how wxWidgets will send idle events: to all windows, or only to those which specify that they will process the events.

The mode can be one of the following values:

wx.IDLE_PROCESS_ALL Send idle events to all windows

wx.IDLE_PROCESS_SPECIFIED Send idle events only to windows that have the wx.WS_EX_PROCESS_IDLE extra style flag set.

Parameters:: mode
(type=int)

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