%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% Name: tlw.tex %% Purpose: wxTopLevelWindow documentation %% Author: Vadim Zeitlin %% Modified by: %% Created: 2004-09-07 (partly extracted from frame.tex) %% RCS-ID: $Id: tlw.tex 42718 2006-10-30 13:18:35Z RR $ %% Copyright: (c) 2004 Vadim Zeitlin %% License: wxWindows license %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \section{\class{wxTopLevelWindow}}\label{wxtoplevelwindow} wxTopLevelWindow is a common base class for \helpref{wxDialog}{wxdialog} and \helpref{wxFrame}{wxframe}. It is an abstract base class meaning that you never work with objects of this class directly, but all of its methods are also applicable for the two classes above. \wxheading{Derived from} \helpref{wxWindow}{wxwindow}\\ \helpref{wxEvtHandler}{wxevthandler}\\ \helpref{wxObject}{wxobject} \wxheading{Include files} \latexignore{\rtfignore{\wxheading{Members}}} \membersection{wxTopLevelWindow::CanSetTransparent}\label{wxtoplevelwindowcansettransparent} \func{virtual bool}{CanSetTransparent}{\void} Returns \true if the platform supports making the window translucent. \wxheading{See also} \helpref{wxTopLevelWindow::SetTransparent}{wxtoplevelwindowsettransparent} \membersection{wxTopLevelWindow::EnableCloseButton}\label{wxtoplevelenableclosebutton} \func{bool}{EnableCloseButton}{\param{bool}{ enable = true}} Enables or disables the Close button (most often in the right upper corner of a dialog) and the Close entry of the system menu (most often in the left upper corner of the dialog). Currently only implemented for wxMSW and wxGTK. Returns true if operation was successful. This may be wrong on X11 (including GTK+) where the window manager may not support this operation and there is no way to find out. \membersection{wxTopLevelWindow::GetDefaultItem}\label{wxtoplevelwindowgetdefaultitem} \constfunc{wxWindow *}{GetDefaultItem}{\void} Returns a pointer to the button which is the default for this window, or \NULL. The default button is the one activated by pressing the Enter key. \membersection{wxTopLevelWindow::GetIcon}\label{wxtoplevelwindowgeticon} \constfunc{const wxIcon\&}{GetIcon}{\void} Returns the standard icon of the window. The icon will be invalid if it hadn't been previously set by \helpref{SetIcon}{wxtoplevelwindowseticon}. \wxheading{See also} \helpref{GetIcons}{wxtoplevelwindowgeticons} \membersection{wxTopLevelWindow::GetIcons}\label{wxtoplevelwindowgeticons} \constfunc{const wxIconBundle\&}{GetIcons}{\void} Returns all icons associated with the window, there will be none of them if neither \helpref{SetIcon}{wxtoplevelwindowseticon} nor \helpref{SetIcons}{wxtoplevelwindowseticons} had been called before. Use \helpref{GetIcon}{wxtoplevelwindowgeticon} to get the main icon of the window. \wxheading{See also} \helpref{wxIconBundle}{wxiconbundle} \membersection{wxTopLevelWindow::GetTitle}\label{wxtoplevelwindowgettitle} \constfunc{wxString}{GetTitle}{\void} Gets a string containing the window title. \wxheading{See also} \helpref{wxTopLevelWindow::SetTitle}{wxtoplevelwindowsettitle} \membersection{wxTopLevelWindow::HandleSettingChange}\label{wxtoplevelwindowhandlesettingchange} \func{virtual bool}{HandleSettingChange}{\param{WXWPARAM}{ wParam}, \param{WXLPARAM}{ lParam}} Unique to the wxWinCE port. Responds to showing/hiding SIP (soft input panel) area and resize window accordingly. Override this if you want to avoid resizing or do additional operations. \membersection{wxTopLevelWindow::IsActive}\label{wxtoplevelwindowisactive} \constfunc{bool}{IsActive}{\void} Returns \true if this window is currently active, i.e. if the user is currently working with it. \membersection{wxTopLevelWindow::IsAlwaysMaximized}\label{wxtoplevelwindowisalwaysmaximized} \constfunc{virtual bool}{IsAlwaysMaximized}{\void} Returns \true if this window is expected to be always maximized, either due to platform policy or due to local policy regarding particular class. \membersection{wxTopLevelWindow::Iconize}\label{wxtoplevelwindowiconize} \func{void}{Iconize}{\param{bool}{ iconize}} Iconizes or restores the window. \wxheading{Parameters} \docparam{iconize}{If \true, iconizes the window; if \false, shows and restores it.} \wxheading{See also} \helpref{wxTopLevelWindow::IsIconized}{wxtoplevelwindowisiconized}, \helpref{wxTopLevelWindow::Maximize}{wxtoplevelwindowmaximize}. \membersection{wxTopLevelWindow::IsFullScreen}\label{wxtoplevelwindowisfullscreen} \func{bool}{IsFullScreen}{\void} Returns \true if the window is in fullscreen mode. \wxheading{See also} \helpref{wxTopLevelWindow::ShowFullScreen}{wxtoplevelwindowshowfullscreen} \membersection{wxTopLevelWindow::IsIconized}\label{wxtoplevelwindowisiconized} \constfunc{bool}{IsIconized}{\void} Returns \true if the window is iconized. \membersection{wxTopLevelWindow::IsMaximized}\label{wxtoplevelwindowismaximized} \constfunc{bool}{IsMaximized}{\void} Returns \true if the window is maximized. \membersection{wxTopLevelWindow::IsUsingNativeDecorations}\label{wxtoplevelwindowisusingnativedecorations} \constfunc{bool}{IsUsingNativeDecorations}{\void} \bftt{This method is specific to wxUniversal port} Returns \true if this window is using native decorations, \false if we draw them ourselves. \wxheading{See also} \helpref{UseNativeDecorations}{wxtoplevelwindowusenativedecorations},\\ \helpref{UseNativeDecorationsByDefault}{wxtoplevelwindowusenativedecorationsbydefault} \membersection{wxTopLevelWindow::Maximize}\label{wxtoplevelwindowmaximize} \func{void}{Maximize}{\param{bool }{maximize}} Maximizes or restores the window. \wxheading{Parameters} \docparam{maximize}{If \true, maximizes the window, otherwise it restores it.} \wxheading{See also} \helpref{wxTopLevelWindow::Iconize}{wxtoplevelwindowiconize} \membersection{wxTopLevelWindow::RequestUserAttention}\label{wxtoplevelwindowrequestuserattention} \func{void}{RequestUserAttention}{\param{int }{flags = wxUSER\_ATTENTION\_INFO}} Use a system-dependent way to attract users attention to the window when it is in background. \arg{flags} may have the value of either \texttt{wxUSER\_ATTENTION\_INFO} (default) or \texttt{wxUSER\_ATTENTION\_ERROR} which results in a more drastic action. When in doubt, use the default value. Note that this function should normally be only used when the application is not already in foreground. This function is currently implemented for Win32 where it flashes the window icon in the taskbar, and for wxGTK with task bars supporting it. \membersection{wxTopLevelWindow::SetDefaultItem}\label{wxtoplevelwindowsetdefaultitem} \func{void}{SetDefaultItem}{\param{wxWindow }{*win}} Changes the default item for the panel, usually \arg{win} is a button. \wxheading{See also} \helpref{GetDefaultItem}{wxtoplevelwindowgetdefaultitem} \membersection{wxTopLevelWindow::SetIcon}\label{wxtoplevelwindowseticon} \func{void}{SetIcon}{\param{const wxIcon\& }{icon}} Sets the icon for this window. \wxheading{Parameters} \docparam{icon}{The icon to associate with this window.} \wxheading{Remarks} The window takes a `copy' of {\it icon}, but since it uses reference counting, the copy is very quick. It is safe to delete {\it icon} after calling this function. See also \helpref{wxIcon}{wxicon}. \membersection{wxTopLevelWindow::SetIcons}\label{wxtoplevelwindowseticons} \func{void}{SetIcons}{\param{const wxIconBundle\& }{icons}} Sets several icons of different sizes for this window: this allows to use different icons for different situations (e.g. task switching bar, taskbar, window title bar) instead of scaling, with possibly bad looking results, the only icon set by \helpref{SetIcon}{wxtoplevelwindowseticon}. \wxheading{Parameters} \docparam{icons}{The icons to associate with this window.} \wxheading{See also} \helpref{wxIconBundle}{wxiconbundle}. \membersection{wxTopLevelWindow::SetLeftMenu}\label{wxtoplevelwindowsetleftmenu} \func{void}{SetLeftMenu}{\param{int}{ id = wxID\_ANY}, \param{const wxString\&}{ label = wxEmptyString}, \param{wxMenu *}{ subMenu = NULL}} Sets action or menu activated by pressing left hardware button on the smart phones. Unavailable on full keyboard machines. \wxheading{Parameters} \docparam{id}{Identifier for this button.} \docparam{label}{Text to be displayed on the screen area dedicated to this hardware button.} \docparam{subMenu}{The menu to be opened after pressing this hardware button.} \wxheading{See also} \helpref{wxTopLevelWindow::SetRightMenu}{wxtoplevelwindowsetrightmenu}. \membersection{wxTopLevelWindow::SetMaxSize}\label{wxtoplevelwindowsetmaxsize} \func{void}{SetMaxSize}{\param{const wxSize\& }{size}} A simpler interface for setting the size hints than \helpref{SetSizeHints}{wxtoplevelwindowsetsizehints}. \membersection{wxTopLevelWindow::SetMinSize}\label{wxtoplevelwindowsetminsize} \func{void}{SetMinSize}{\param{const wxSize\& }{size}} A simpler interface for setting the size hints than \helpref{SetSizeHints}{wxtoplevelwindowsetsizehints}. \membersection{wxTopLevelWindow::SetSizeHints}\label{wxtoplevelwindowsetsizehints} \func{virtual void}{SetSizeHints}{\param{int}{ minW}, \param{int}{ minH}, \param{int}{ maxW=-1}, \param{int}{ maxH=-1}, \param{int}{ incW=-1}, \param{int}{ incH=-1}} \func{void}{SetSizeHints}{\param{const wxSize\&}{ minSize}, \param{const wxSize\&}{ maxSize=wxDefaultSize}, \param{const wxSize\&}{ incSize=wxDefaultSize}} Allows specification of minimum and maximum window sizes, and window size increments. If a pair of values is not set (or set to -1), the default values will be used. \docparam{incW}{Specifies the increment for sizing the width (Motif/Xt only).} \docparam{incH}{Specifies the increment for sizing the height (Motif/Xt only).} \docparam{incSize}{Increment size (Motif/Xt only).} \wxheading{Remarks} If this function is called, the user will not be able to size the window outside the given bounds. The resizing increments are only significant under Motif or Xt. \membersection{wxTopLevelWindow::SetRightMenu}\label{wxtoplevelwindowsetrightmenu} \func{void}{SetRightMenu}{\param{int}{ id = wxID\_ANY}, \param{const wxString\&}{ label = wxEmptyString}, \param{wxMenu *}{ subMenu = NULL}} Sets action or menu activated by pressing right hardware button on the smart phones. Unavailable on full keyboard machines. \wxheading{Parameters} \docparam{id}{Identifier for this button.} \docparam{label}{Text to be displayed on the screen area dedicated to this hardware button.} \docparam{subMenu}{The menu to be opened after pressing this hardware button.} \wxheading{See also} \helpref{wxTopLevelWindow::SetLeftMenu}{wxtoplevelwindowsetleftmenu}. \membersection{wxTopLevelWindow::SetShape}\label{wxtoplevelwindowsetshape} \func{bool}{SetShape}{\param{const wxRegion\&}{ region}} If the platform supports it, sets the shape of the window to that depicted by {\it region}. The system will not display or respond to any mouse event for the pixels that lie outside of the region. To reset the window to the normal rectangular shape simply call {\it SetShape} again with an empty region. Returns true if the operation is successful. \membersection{wxTopLevelWindow::SetTitle}\label{wxtoplevelwindowsettitle} \func{virtual void}{SetTitle}{\param{const wxString\& }{ title}} Sets the window title. \wxheading{Parameters} \docparam{title}{The window title.} \wxheading{See also} \helpref{wxTopLevelWindow::GetTitle}{wxtoplevelwindowgettitle} \membersection{wxTopLevelWindow::SetTransparent}\label{wxtoplevelwindowsettransparent} \func{virtual bool}{SetTransparent}{\param{int }{ alpha}} If the platform supports it will set the window to be translucent \wxheading{Parameters} \docparam{alpha}{Determines how opaque or transparent the window will be, if the platform supports the opreration. A value of 0 sets the window to be fully transparent, and a value of 255 sets the window to be fully opaque.} Returns \true if the transparency was successfully changed. \membersection{wxTopLevelWindow::ShouldPreventAppExit}\label{wxtoplevelwindowshouldpreventappexit} \constfunc{virtual bool}{ShouldPreventAppExit}{\void} This virtual function is not meant to be called directly but can be overridden to return \false (it returns \true by default) to allow the application to close even if this, presumably not very important, window is still opened. By default, the application stays alive as long as there are any open top level windows. \membersection{wxTopLevelWindow::ShowFullScreen}\label{wxtoplevelwindowshowfullscreen} \func{bool}{ShowFullScreen}{\param{bool}{ show}, \param{long}{ style = wxFULLSCREEN\_ALL}} Depending on the value of {\it show} parameter the window is either shown full screen or restored to its normal state. {\it style} is a bit list containing some or all of the following values, which indicate what elements of the window to hide in full-screen mode: \begin{itemize}\itemsep=0pt \item wxFULLSCREEN\_NOMENUBAR \item wxFULLSCREEN\_NOTOOLBAR \item wxFULLSCREEN\_NOSTATUSBAR \item wxFULLSCREEN\_NOBORDER \item wxFULLSCREEN\_NOCAPTION \item wxFULLSCREEN\_ALL (all of the above) \end{itemize} This function has not been tested with MDI frames. Note that showing a window full screen also actually \helpref{Show()s}{wxwindowshow} if it hadn't been shown yet. \wxheading{See also} \helpref{wxTopLevelWindow::IsFullScreen}{wxtoplevelwindowisfullscreen} \membersection{wxTopLevelWindow::UseNativeDecorations}\label{wxtoplevelwindowusenativedecorations} \func{void}{UseNativeDecorations}{\param{bool }{native = \true}} \bftt{This method is specific to wxUniversal port} Use native or custom-drawn decorations for this window only. Notice that to have any effect this method must be called before really creating the window, i.e. two step creation must be used: \begin{verbatim} MyFrame *frame = new MyFrame; // use default ctor frame->UseNativeDecorations(false); // change from default "true" frame->Create(parent, title, ...); // really create the frame \end{verbatim} \wxheading{See also} \helpref{UseNativeDecorationsByDefault}{wxtoplevelwindowusenativedecorationsbydefault},\\ \helpref{IsUsingNativeDecorations}{wxtoplevelwindowisusingnativedecorations} \membersection{wxTopLevelWindow::UseNativeDecorationsByDefault}\label{wxtoplevelwindowusenativedecorationsbydefault} \func{void}{UseNativeDecorationsByDefault}{\param{bool }{native = \true}} \bftt{This method is specific to wxUniversal port} Top level windows in wxUniversal port can use either system-provided window decorations (i.e. title bar and various icons, buttons and menus in it) or draw the decorations themselves. By default the system decorations are used if they are available, but this method can be called with \arg{native} set to \false to change this for all windows created after this point. Also note that if \texttt{WXDECOR} environment variable is set, then custom decorations are used by default and so it may make sense to call this method with default argument if the application can't use custom decorations at all for some reason. \wxheading{See also} \helpref{UseNativeDecorations}{wxtoplevelwindowusenativedecorations}