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