This class represents a taskbar icon.

A taskbar icon is an icon that appears in the ‘system tray’ and responds to mouse clicks, optionally with a tooltip above it to help provide information.

## X Window System Note¶

Under X Window System, the window manager must support either the “System Tray Protocol” (see http://freedesktop.org/wiki/Specifications/systemtray-spec) by freedesktop.org (WMs used by modern desktop environments such as GNOME >= 2, KDE >= 3 and XFCE >= 4 all do) or the older methods used in GNOME 1.2 and KDE 1 and 2. If it doesn’t, the icon will appear as a toplevel window on user’s desktop. Because not all window managers have system tray, there’s no guarantee that wx.adv.TaskBarIcon will work correctly under X Window System and so the applications should use it only as an optional component of their user interface. The user should be required to explicitly enable the taskbar icon on Unix, it shouldn’t be on by default.

## Events Emitted by this Class¶

Handlers bound for the following event types will receive one of the wx.adv.TaskBarIconEvent Note that not all ports are required to send these events and so it’s better to override wx.adv.TaskBarIcon.CreatePopupMenu if all that the application does is that it shows a popup menu in reaction to mouse click. parameters.

• EVT_TASKBAR_MOVE: Process a wxEVT_TASKBAR_MOVE event.

• EVT_TASKBAR_LEFT_DOWN: Process a wxEVT_TASKBAR_LEFT_DOWN event.

• EVT_TASKBAR_LEFT_UP: Process a wxEVT_TASKBAR_LEFT_UP event.

• EVT_TASKBAR_RIGHT_DOWN: Process a wxEVT_TASKBAR_RIGHT_DOWN event.

• EVT_TASKBAR_RIGHT_UP: Process a wxEVT_TASKBAR_RIGHT_UP event.

• EVT_TASKBAR_LEFT_DCLICK: Process a wxEVT_TASKBAR_LEFT_DCLICK event.

• EVT_TASKBAR_RIGHT_DCLICK: Process a wxEVT_TASKBAR_RIGHT_DCLICK event.

• EVT_TASKBAR_CLICK: This is a synonym for either EVT_TASKBAR_RIGHT_DOWN or wx.UP depending on the platform, use this event macro to catch the event which should result in the menu being displayed on the current platform.

## Methods Summary¶

 __init__ Default constructor. CreatePopupMenu This method is called by the library when the user requests popup menu (on Windows and Unix platforms, this is when the user right-clicks the icon). Destroy This method is similar to wx.Window.Destroy and can be used to schedule the task bar icon object for the delayed destruction: it will be deleted during the next event loop iteration, which allows the task bar icon to process any pending events for it before being destroyed. IsAvailable Returns True if system tray is available in the desktop environment the app runs under. IsIconInstalled Returns True if SetIcon was called with no subsequent RemoveIcon . IsOk Returns True if the object initialized successfully. PopupMenu Pops up a menu at the current mouse position. RemoveIcon Removes the icon previously set with SetIcon . SetIcon Sets the icon, and optional tooltip text. ShowBalloon Show a balloon notification (the icon must have been already

## Class API¶

class wx.adv.TaskBarIcon(EvtHandler)

Possible constructors:

TaskBarIcon(iconType=TBI_DEFAULT_TYPE)


This class represents a taskbar icon.

### Methods¶

__init__(self, iconType=TBI_DEFAULT_TYPE)

Default constructor.

The iconType is only applicable on OSX/Cocoa.

Parameters

CreatePopupMenu(self)

This method is called by the library when the user requests popup menu (on Windows and Unix platforms, this is when the user right-clicks the icon).

Override this function in order to provide popup menu associated with the icon. If CreatePopupMenu returns None (this happens by default), no menu is shown, otherwise the menu is displayed and then deleted by the library as soon as the user dismisses it.

Return type

Destroy(self)

This method is similar to wx.Window.Destroy and can be used to schedule the task bar icon object for the delayed destruction: it will be deleted during the next event loop iteration, which allows the task bar icon to process any pending events for it before being destroyed.

static IsAvailable()

Returns True if system tray is available in the desktop environment the app runs under.

On Windows and OS X, the tray is always available and this function simply returns True.

On Unix, X11 environment may or may not provide the tray, depending on user’s desktop environment. Most modern desktops support the tray via the System Tray Protocol by freedesktop.org (http://freedesktop.org/wiki/Specifications/systemtray-spec).

Return type

bool

New in version 2.9.0.

Note

Tray availability may change during application’s lifetime under X11 and so applications shouldn’t cache the result.

Note

wx.adv.TaskBarIcon supports older GNOME 1.2 and KDE 1/2 methods of adding icons to tray, but they are unreliable and this method doesn’t detect them.

IsIconInstalled(self)

Returns True if SetIcon was called with no subsequent RemoveIcon .

Return type

bool

IsOk(self)

Returns True if the object initialized successfully.

Return type

bool

PopupMenu(self, menu)

Pops up a menu at the current mouse position.

Parameters

Return type

bool

Note

It is recommended to override CreatePopupMenu callback instead of calling this method from event handler, because some ports (e.g. Cocoa) may not implement PopupMenu and mouse click events at all.

RemoveIcon(self)

Removes the icon previously set with SetIcon .

Return type

bool

SetIcon(self, icon, tooltip="")

Sets the icon, and optional tooltip text.

Parameters
• icon (wx.Icon) –

• tooltip (string) –

Return type

bool

ShowBalloon(self, title, text, msec=0, flags=0)

Show a balloon notification (the icon must have been already initialized using SetIcon). Only implemented for Windows.

The title and text parameters are limited to 63 and 255 characters respectively, msec is the timeout, in milliseconds, before the balloon disappears (will be clamped down to the allowed 10-30s range by Windows if it’s outside it) and flags can include ICON_ERROR/INFO/WARNING to show a corresponding icon.

Returns True if balloon was shown, False on error (incorrect parameters or function unsupported by OS).

Return type

bool