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1 | \section{\class{wxTaskBarIcon}}\label{wxtaskbaricon} | |
2 | ||
3 | This class represents a taskbar icon, appearing in the `system tray' and | |
4 | responding to mouse clicks. An icon has an optional tooltip. This class is only | |
5 | supported under Windows 95/NT and in X Window System ports (wxGTK, wxMotif, | |
6 | wxX11). | |
7 | ||
8 | \wxheading{X Window System Note} | |
9 | ||
10 | Under X Window System, the window manager must support either | |
11 | the \urlref{System Tray Protocol by freedesktop.org}{http://freedesktop.org/Standards/systemtray-spec} | |
12 | (WMs used by modern desktop environments such as GNOME >= 2, KDE | |
13 | >= 3 and XFCE >= 4 all do) or the older methods used in GNOME 1.2 and | |
14 | KDE 1 and 2. If it doesn't, the icon will appear as a toplevel window on | |
15 | user's desktop. | |
16 | ||
17 | Because not all window managers have system tray, there's no guarantee that | |
18 | wxTaskBarIcon will work correctly under X Window System and so the applications | |
19 | should use it only as an optional component of their user interface. The user | |
20 | should be required to explicitly enable the taskbar icon on Unix, it shouldn't | |
21 | be on by default. | |
22 | ||
23 | ||
24 | \wxheading{Derived from} | |
25 | ||
26 | \helpref{wxEvtHandler}{wxevthandler}\\ | |
27 | \helpref{wxObject}{wxobject} | |
28 | ||
29 | \wxheading{Include files} | |
30 | ||
31 | <wx/taskbar.h> | |
32 | ||
33 | \wxheading{Event handling} | |
34 | ||
35 | To process input from a taskbar icon, use the following event handler macros to direct input to member | |
36 | functions that take a wxTaskBarIconEvent argument. Note that not all ports are | |
37 | required to send these events and so it's better to override | |
38 | \helpref{CreatePopupMenu}{wxtaskbariconcreatepopupmenu} if all that | |
39 | the application does is that it shows a popup menu in reaction to mouse click. | |
40 | ||
41 | \twocolwidtha{7cm} | |
42 | \begin{twocollist}\itemsep=0pt | |
43 | \twocolitem{{\bf EVT\_TASKBAR\_MOVE(func)}}{Process a | |
44 | wxEVT\_TASKBAR\_MOVE event.} | |
45 | \twocolitem{{\bf EVT\_TASKBAR\_LEFT\_DOWN(func)}}{Process a | |
46 | wxEVT\_TASKBAR\_LEFT\_DOWN event.} | |
47 | \twocolitem{{\bf EVT\_TASKBAR\_LEFT\_UP(func)}}{Process a | |
48 | wxEVT\_TASKBAR\_LEFT\_UP event.} | |
49 | \twocolitem{{\bf EVT\_TASKBAR\_RIGHT\_DOWN(func)}}{Process a | |
50 | wxEVT\_TASKBAR\_RIGHT\_DOWN event.} | |
51 | \twocolitem{{\bf EVT\_TASKBAR\_RIGHT\_UP(func)}}{Process a | |
52 | wxEVT\_TASKBAR\_RIGHT\_UP event.} | |
53 | \twocolitem{{\bf EVT\_TASKBAR\_LEFT\_DCLICK(func)}}{Process a | |
54 | wxEVT\_TASKBAR\_LEFT\_DCLICK event.} | |
55 | \twocolitem{{\bf EVT\_TASKBAR\_RIGHT\_DCLICK(func)}}{Process a | |
56 | wxEVT\_TASKBAR\_RIGHT\_DCLICK event.} | |
57 | \end{twocollist}% | |
58 | ||
59 | \latexignore{\rtfignore{\wxheading{Members}}} | |
60 | ||
61 | \membersection{wxTaskBarIcon::wxTaskBarIcon}\label{wxtaskbariconctor} | |
62 | ||
63 | \func{}{wxTaskBarIcon}{\void} | |
64 | ||
65 | Default constructor. | |
66 | ||
67 | \membersection{wxTaskBarIcon::\destruct{wxTaskBarIcon}}\label{wxtaskbaricondtor} | |
68 | ||
69 | \func{}{\destruct{wxTaskBarIcon}}{\void} | |
70 | ||
71 | Destroys the wxTaskBarIcon object, removing the icon if not already removed. | |
72 | ||
73 | \membersection{wxTaskBarIcon::CreatePopupMenu}\label{wxtaskbariconcreatepopupmenu} | |
74 | ||
75 | \func{virtual wxMenu*}{CreatePopupMenu}{\void} | |
76 | ||
77 | This method is called by the library when the user requests popup menu | |
78 | (on Windows and Unix platforms, this is when the user right-clicks the icon). | |
79 | Override this function in order to provide popup menu associated with the icon. | |
80 | ||
81 | If CreatePopupIcon returns NULL (this happens by default), | |
82 | no menu is shown, otherwise the menu is | |
83 | displayed and then deleted by the library as soon as the user dismisses it. | |
84 | The events can be handled by a class derived from wxTaskBarIcon. | |
85 | ||
86 | \membersection{wxTaskBarIcon::IsIconInstalled}\label{wxtaskbariconisiconinstalled} | |
87 | ||
88 | \func{bool}{IsIconInstalled}{\void} | |
89 | ||
90 | Returns true if \helpref{SetIcon}{wxtaskbariconseticon} was called with no subsequent \helpref{RemoveIcon}{wxtaskbariconremoveicon}. | |
91 | ||
92 | \membersection{wxTaskBarIcon::IsOk}\label{wxtaskbariconisok} | |
93 | ||
94 | \func{bool}{IsOk}{\void} | |
95 | ||
96 | Returns true if the object initialized successfully. | |
97 | ||
98 | \membersection{wxTaskBarIcon::PopupMenu}\label{wxtaskbariconpopupmenu} | |
99 | ||
100 | \func{bool}{PopupMenu}{\param{wxMenu*}{ menu}} | |
101 | ||
102 | Pops up a menu at the current mouse position. The events can be handled by | |
103 | a class derived from wxTaskBarIcon. | |
104 | ||
105 | \wxheading{Note} | |
106 | ||
107 | It is recommended to override | |
108 | \helpref{CreatePopupIcon}{wxtaskbariconcreatepopupmenu} | |
109 | callback instead of calling this method from event handler, because some | |
110 | ports (e.g. wxCocoa) may not implement PopupMenu and mouse click events at all. | |
111 | ||
112 | \membersection{wxTaskBarIcon::RemoveIcon}\label{wxtaskbariconremoveicon} | |
113 | ||
114 | \func{bool}{RemoveIcon}{\void} | |
115 | ||
116 | Removes the icon previously set with \helpref{SetIcon}{wxtaskbariconseticon}. | |
117 | ||
118 | \membersection{wxTaskBarIcon::SetIcon}\label{wxtaskbariconseticon} | |
119 | ||
120 | \func{bool}{SetIcon}{\param{const wxIcon\&}{ icon}, \param{const wxString\& }{tooltip}} | |
121 | ||
122 | Sets the icon, and optional tooltip text. | |
123 | ||
124 |