X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/feb68562351a5871c605b051b7912d87af963854..edc536d358374987326d93adb1012b6eda9435a0:/docs/latex/wx/taskbar.tex diff --git a/docs/latex/wx/taskbar.tex b/docs/latex/wx/taskbar.tex index 73a78a5ff3..be42f21d54 100644 --- a/docs/latex/wx/taskbar.tex +++ b/docs/latex/wx/taskbar.tex @@ -1,7 +1,22 @@ \section{\class{wxTaskBarIcon}}\label{wxtaskbaricon} -This class represents a Windows 95 taskbar icon, appearing in the `system tray' and responding to -mouse clicks. An icon has an optional tooltip. This class is only supported for Windows 95/NT. +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. + +\wxheading{X Window System Note} + +Under X Window System, the window manager must support either +the \urlref{System Tray Protocol by freedesktop.org}{http://freedesktop.org/Standards/systemtray-spec} +(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 +wxTaskBarIcon 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. + \wxheading{Derived from} @@ -15,7 +30,10 @@ mouse clicks. An icon has an optional tooltip. This class is only supported for \wxheading{Event handling} To process input from a taskbar icon, use the following event handler macros to direct input to member -functions that take a wxTaskBarIconEvent argument. +functions that take a wxTaskBarIconEvent argument. Note that not all ports are +required to send these events and so it's better to override +\helpref{CreatePopupMenu}{wxtaskbariconcreatepopupmenu} if all that +the application does is that it shows a popup menu in reaction to mouse click. \twocolwidtha{7cm} \begin{twocollist}\itemsep=0pt @@ -37,18 +55,31 @@ wxEVT\_TASKBAR\_RIGHT\_DCLICK event.} \latexignore{\rtfignore{\wxheading{Members}}} -\membersection{wxTaskBarIcon::wxTaskBarIcon}\label{wxtaskbariconconstr} +\membersection{wxTaskBarIcon::wxTaskBarIcon}\label{wxtaskbariconctor} \func{}{wxTaskBarIcon}{\void} Default constructor. -\membersection{wxTaskBarIcon::\destruct{wxTaskBarIcon}} +\membersection{wxTaskBarIcon::\destruct{wxTaskBarIcon}}\label{wxtaskbaricondtor} \func{}{\destruct{wxTaskBarIcon}}{\void} Destroys the wxTaskBarIcon object, removing the icon if not already removed. +\membersection{wxTaskBarIcon::CreatePopupMenu}\label{wxtaskbariconcreatepopupmenu} + +\func{virtual wxMenu*}{CreatePopupMenu}{\void} + +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 CreatePopupIcon returns NULL (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. +The events can be handled by a class derived from wxTaskBarIcon. + \membersection{wxTaskBarIcon::IsIconInstalled}\label{wxtaskbariconisiconinstalled} \func{bool}{IsIconInstalled}{\void} @@ -68,6 +99,13 @@ Returns true if the object initialized successfully. Pops up a menu at the current mouse position. The events can be handled by a class derived from wxTaskBarIcon. +\wxheading{Note} + +It is recommended to override +\helpref{CreatePopupIcon}{wxtaskbariconcreatepopupmenu} +callback instead of calling this method from event handler, because some +ports (e.g. wxCocoa) may not implement PopupMenu and mouse click events at all. + \membersection{wxTaskBarIcon::RemoveIcon}\label{wxtaskbariconremoveicon} \func{bool}{RemoveIcon}{\void}