7975a361bb
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43747 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
595 lines
19 KiB
TeX
595 lines
19 KiB
TeX
%
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% automatically generated by HelpGen from
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% htmlwindow.tex at 14/Mar/99 20:13:37
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%
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\section{\class{wxHtmlWindow}}\label{wxhtmlwindow}
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wxHtmlWindow is probably the only class you will directly use
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unless you want to do something special (like adding new tag
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handlers or MIME filters).
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The purpose of this class is to display HTML pages (either local
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file or downloaded via HTTP protocol) in a window. The width
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of the window is constant - given in the constructor - and virtual height
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is changed dynamically depending on page size.
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Once the window is created you can set its content by calling
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\helpref{SetPage(text)}{wxhtmlwindowsetpage},
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\helpref{LoadPage(filename)}{wxhtmlwindowloadpage} or
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\helpref{LoadFile}{wxhtmlwindowloadfile}.
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\wxheading{Note}
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wxHtmlWindow uses the \helpref{wxImage}{wximage} class for displaying images.
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Don't forget to initialize all image formats you need before loading any page!
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(See \helpref{wxInitAllImageHandlers}{wxinitallimagehandlers} and
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\helpref{wxImage::AddHandler}{wximageaddhandler}.)
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\wxheading{Derived from}
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\helpref{wxScrolledWindow}{wxscrolledwindow}
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\wxheading{Include files}
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<wx/html/htmlwin.h>
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\wxheading{Window styles}
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\twocolwidtha{5cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{\windowstyle{wxHW\_SCROLLBAR\_NEVER}}{Never display scrollbars, not
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even when the page is larger than the window.}
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\twocolitem{\windowstyle{wxHW\_SCROLLBAR\_AUTO}}{Display scrollbars only if
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page's size exceeds window's size.}
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\twocolitem{\windowstyle{wxHW\_NO\_SELECTION}}{Don't allow the user to select
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text.}
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\end{twocollist}
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\wxheading{Event handling}
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To process input from a wxHtmlWindow, use these event handler macros to direct input to member
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functions that take a \helpref{wxHtmlCellEvent}{wxhtmlcellevent} argument or a \helpref{wxHtmlLinkEvent}{wxhtmllinkevent}.
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\twocolwidtha{7cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf EVT\_HTML\_CELL\_CLICKED(id, func)}}{A \helpref{wxHtmlCell}{wxhtmlcell} was clicked.}
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\twocolitem{{\bf EVT\_HTML\_CELL\_HOVER(id, func)}}{The mouse passed over a \helpref{wxHtmlCell}{wxhtmlcell}.}
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\twocolitem{{\bf EVT\_HTML\_LINK\_CLICKED(id, func)}}{A \helpref{wxHtmlCell}{wxhtmlcell} which contains an hyperlink was clicked.}
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\end{twocollist}
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\wxheading{See also}
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\helpref{wxHtmlLinkEvent}{wxhtmllinkevent}, \helpref{wxHtmlCellEvent}{wxhtmlcellevent}
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\membersection{wxHtmlWindow::wxHtmlWindow}\label{wxhtmlwindowwxhtmlwindow}
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\func{}{wxHtmlWindow}{\void}
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Default constructor.
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\func{}{wxHtmlWindow}{\param{wxWindow }{*parent}, \param{wxWindowID }{id = -1}, \param{const wxPoint\& }{pos = wxDefaultPosition}, \param{const wxSize\& }{size = wxDefaultSize}, \param{long }{style = wxHW\_DEFAULT\_STYLE}, \param{const wxString\& }{name = "htmlWindow"}}
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Constructor. The parameters are the same as for the \helpref{wxScrolledWindow}{wxscrolledwindow} constructor.
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\wxheading{Parameters}
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\docparam{style}{Window style. See \helpref{wxHtmlWindow}{wxhtmlwindow}.}
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\membersection{wxHtmlWindow::AddFilter}\label{wxhtmlwindowaddfilter}
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\func{static void}{AddFilter}{\param{wxHtmlFilter }{*filter}}
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Adds \helpref{input filter}{filters} to the static list of available
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filters. These filters are present by default:
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\begin{itemize}\itemsep=0pt
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\item {\tt text/html} MIME type
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\item {\tt image/*} MIME types
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\item Plain Text filter (this filter is used if no other filter matches)
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\end{itemize}
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\membersection{wxHtmlWindow::AppendToPage}\label{wxhtmlwindowappendtopage}
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\func{bool}{AppendToPage}{\param{const wxString\& }{source}}
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Appends HTML fragment to currently displayed text and refreshes the window.
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\wxheading{Parameters}
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\docparam{source}{HTML code fragment}
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\wxheading{Return value}
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false if an error occurred, true otherwise.
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\membersection{wxHtmlWindow::GetInternalRepresentation}\label{wxhtmlwindowgetinternalrepresentation}
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\constfunc{wxHtmlContainerCell*}{GetInternalRepresentation}{\void}
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Returns pointer to the top-level container.
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See also: \helpref{Cells Overview}{cells},
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\helpref{Printing Overview}{printing}
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\membersection{wxHtmlWindow::GetOpenedAnchor}\label{wxhtmlwindowgetopenedanchor}
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\func{wxString}{GetOpenedAnchor}{\void}
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Returns anchor within currently opened page
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(see \helpref{GetOpenedPage}{wxhtmlwindowgetopenedpage}).
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If no page is opened or if the displayed page wasn't
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produced by call to LoadPage, empty string is returned.
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\membersection{wxHtmlWindow::GetOpenedPage}\label{wxhtmlwindowgetopenedpage}
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\func{wxString}{GetOpenedPage}{\void}
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Returns full location of the opened page. If no page is opened or if the displayed page wasn't
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produced by call to LoadPage, empty string is returned.
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\membersection{wxHtmlWindow::GetOpenedPageTitle}\label{wxhtmlwindowgetopenedpagetitle}
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\func{wxString}{GetOpenedPageTitle}{\void}
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Returns title of the opened page or wxEmptyString if current page does not contain {\tt <TITLE>} tag.
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\membersection{wxHtmlWindow::GetRelatedFrame}\label{wxhtmlwindowgetrelatedframe}
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\constfunc{wxFrame*}{GetRelatedFrame}{\void}
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Returns the related frame.
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\membersection{wxHtmlWindow::HistoryBack}\label{wxhtmlwindowhistoryback}
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\func{bool}{HistoryBack}{\void}
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Moves back to the previous page. (each page displayed using
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\helpref{LoadPage}{wxhtmlwindowloadpage} is stored in history list.)
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\membersection{wxHtmlWindow::HistoryCanBack}\label{wxhtmlwindowhistorycanback}
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\func{bool}{HistoryCanBack}{\void}
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Returns true if it is possible to go back in the history (i.e. HistoryBack()
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won't fail).
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\membersection{wxHtmlWindow::HistoryCanForward}\label{wxhtmlwindowhistorycanforward}
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\func{bool}{HistoryCanForward}{\void}
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Returns true if it is possible to go forward in the history (i.e. HistoryBack()
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won't fail).
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\membersection{wxHtmlWindow::HistoryClear}\label{wxhtmlwindowhistoryclear}
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\func{void}{HistoryClear}{\void}
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Clears history.
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\membersection{wxHtmlWindow::HistoryForward}\label{wxhtmlwindowhistoryforward}
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\func{bool}{HistoryForward}{\void}
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Moves to next page in history.
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\membersection{wxHtmlWindow::LoadFile}\label{wxhtmlwindowloadfile}
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\func{virtual bool}{LoadFile}{\param{const wxFileName\& }{filename}}
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Loads HTML page from file and displays it.
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\wxheading{Return value}
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false if an error occurred, true otherwise
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\wxheading{See also}
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\helpref{LoadPage}{wxhtmlwindowloadpage}
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\membersection{wxHtmlWindow::LoadPage}\label{wxhtmlwindowloadpage}
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\func{virtual bool}{LoadPage}{\param{const wxString\& }{location}}
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Unlike SetPage this function first loads HTML page from {\it location}
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and then displays it. See example:
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\begin{verbatim}
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htmlwin->LoadPage("help/myproject/index.htm");
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\end{verbatim}
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\wxheading{Parameters}
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\docparam{location}{The address of document. See \helpref{wxFileSystem}{wxfilesystem} for details on address format and behaviour of "opener".}
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\wxheading{Return value}
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false if an error occurred, true otherwise
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\wxheading{See also}
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\helpref{LoadFile}{wxhtmlwindowloadfile}
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\membersection{wxHtmlWindow::OnCellClicked}\label{wxhtmlwindowoncellclicked}
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\func{virtual bool}{OnCellClicked}{\param{wxHtmlCell }{*cell}, \param{wxCoord }{x}, \param{wxCoord }{y}, \param{const wxMouseEvent\& }{event}}
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This method is called when a mouse button is clicked inside wxHtmlWindow.
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The default behaviour is to emit a \helpref{wxHtmlCellEvent}{wxhtmlcellevent}
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and, if the event was not processed or skipped, call
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\helpref{OnLinkClicked}{wxhtmlwindowonlinkclicked} if the cell contains an
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hypertext link.
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Overloading this method is deprecated; intercept the event instead.
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\wxheading{Parameters}
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\docparam{cell}{The cell inside which the mouse was clicked, always a simple
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(i.e. non-container) cell}
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\docparam{x, y}{The logical coordinates of the click point}
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\docparam{event}{The mouse event containing other information about the click}
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\wxheading{Return value}
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\true if a link was clicked, \false otherwise.
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\membersection{wxHtmlWindow::OnCellMouseHover}\label{wxhtmlwindowoncellmousehover}
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\func{virtual void}{OnCellMouseHover}{\param{wxHtmlCell }{*cell}, \param{wxCoord }{x}, \param{wxCoord }{y}}
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This method is called when a mouse moves over an HTML cell.
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Default behaviour is to emit a \helpref{wxHtmlCellEvent}{wxhtmlcellevent}.
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Overloading this method is deprecated; intercept the event instead.
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\wxheading{Parameters}
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\docparam{cell}{The cell inside which the mouse is currently, always a simple
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(i.e. non-container) cell}
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\docparam{x, y}{The logical coordinates of the click point}
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\membersection{wxHtmlWindow::OnLinkClicked}\label{wxhtmlwindowonlinkclicked}
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\func{virtual void}{OnLinkClicked}{\param{const wxHtmlLinkInfo\& }{link}}
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Called when user clicks on hypertext link. Default behaviour is to emit a
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\helpref{wxHtmlLinkEvent}{wxhtmllinkevent} and, if the event was not processed
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or skipped, call \helpref{LoadPage}{wxhtmlwindowloadpage} and do nothing else.
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Overloading this method is deprecated; intercept the event instead.
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Also see \helpref{wxHtmlLinkInfo}{wxhtmllinkinfo}.
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\membersection{wxHtmlWindow::OnOpeningURL}\label{wxhtmlwindowonopeningurl}
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\func{virtual wxHtmlOpeningStatus}{OnOpeningURL}{\param{wxHtmlURLType }{type},\param{const wxString\& }{url}, \param{wxString *}{redirect}}
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Called when an URL is being opened (either when the user clicks on a link or
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an image is loaded). The URL will be opened only if OnOpeningURL returns
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{\tt wxHTML\_OPEN}. This method is called by
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\helpref{wxHtmlParser::OpenURL}{wxhtmlparseropenurl}.
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You can override OnOpeningURL to selectively block some
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URLs (e.g. for security reasons) or to redirect them elsewhere. Default
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behaviour is to always return {\tt wxHTML\_OPEN}.
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\wxheading{Parameters}
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\docparam{type}{Indicates type of the resource. Is one of
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf wxHTML\_URL\_PAGE}}{Opening a HTML page.}
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\twocolitem{{\bf wxHTML\_URL\_IMAGE}}{Opening an image.}
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\twocolitem{{\bf wxHTML\_URL\_OTHER}}{Opening a resource that doesn't fall into
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any other category.}
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\end{twocollist}}
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\docparam{url}{URL being opened.}
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\docparam{redirect}{Pointer to wxString variable that must be filled with an
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URL if OnOpeningURL returns {\tt wxHTML\_REDIRECT}.}
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\wxheading{Return value}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf wxHTML\_OPEN}}{Open the URL.}
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\twocolitem{{\bf wxHTML\_BLOCK}}{Deny access to the URL, \helpref{wxHtmlParser::OpenURL}{wxhtmlparseropenurl} will return NULL.}
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\twocolitem{{\bf wxHTML\_REDIRECT}}{Don't open {\it url}, redirect to another
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URL. OnOpeningURL must fill {\it *redirect} with the new URL. OnOpeningURL will
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be called again on returned URL.}
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\end{twocollist}
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\membersection{wxHtmlWindow::OnSetTitle}\label{wxhtmlwindowonsettitle}
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\func{virtual void}{OnSetTitle}{\param{const wxString\& }{title}}
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Called on parsing {\tt <TITLE>} tag.
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\membersection{wxHtmlWindow::ReadCustomization}\label{wxhtmlwindowreadcustomization}
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\func{virtual void}{ReadCustomization}{\param{wxConfigBase }{*cfg}, \param{wxString }{path = wxEmptyString}}
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This reads custom settings from wxConfig. It uses the path 'path'
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if given, otherwise it saves info into currently selected path.
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The values are stored in sub-path {\tt wxHtmlWindow}
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Read values: all things set by SetFonts, SetBorders.
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\wxheading{Parameters}
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\docparam{cfg}{wxConfig from which you want to read the configuration.}
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\docparam{path}{Optional path in config tree. If not given current path is used.}
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\membersection{wxHtmlWindow::SelectAll}\label{wxhtmlwindowselectall}
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\func{void}{SelectAll}{\void}
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Selects all text in the window.
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\wxheading{See also}
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\helpref{SelectLine}{wxhtmlwindowselectline},
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\helpref{SelectWord}{wxhtmlwindowselectword}
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\membersection{wxHtmlWindow::SelectionToText}\label{wxhtmlwindowselectiontotext}
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\func{wxString}{SelectionToText}{\void}
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Returns current selection as plain text. Returns empty string if no text
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is currently selected.
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\membersection{wxHtmlWindow::SelectLine}\label{wxhtmlwindowselectline}
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\func{void}{SelectLine}{\param{const wxPoint\& }{pos}}
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Selects the line of text that \arg{pos} points at. Note that \arg{pos}
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is relative to the top of displayed page, not to window's origin, use
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\helpref{CalcUnscrolledPosition}{wxscrolledwindowcalcunscrolledposition}
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to convert physical coordinate.
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\wxheading{See also}
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\helpref{SelectAll}{wxhtmlwindowselectall},
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\helpref{SelectWord}{wxhtmlwindowselectword}
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\membersection{wxHtmlWindow::SelectWord}\label{wxhtmlwindowselectword}
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\func{void}{SelectWord}{\param{const wxPoint\& }{pos}}
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Selects the word at position \arg{pos}. Note that \arg{pos}
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is relative to the top of displayed page, not to window's origin, use
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\helpref{CalcUnscrolledPosition}{wxscrolledwindowcalcunscrolledposition}
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to convert physical coordinate.
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\wxheading{See also}
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\helpref{SelectAll}{wxhtmlwindowselectall},
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\helpref{SelectLine}{wxhtmlwindowselectline}
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\membersection{wxHtmlWindow::SetBorders}\label{wxhtmlwindowsetborders}
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\func{void}{SetBorders}{\param{int }{b}}
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This function sets the space between border of window and HTML contents. See image:
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\helponly{\image{}{border.bmp}}
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\wxheading{Parameters}
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\docparam{b}{indentation from borders in pixels}
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\membersection{wxHtmlWindow::SetFonts}\label{wxhtmlwindowsetfonts}
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\func{void}{SetFonts}{\param{const wxString\& }{normal\_face}, \param{const wxString\& }{fixed\_face}, \param{const int }{*sizes = NULL}}
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This function sets font sizes and faces.
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\wxheading{Parameters}
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\docparam{normal\_face}{This is face name for normal (i.e. non-fixed) font.
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It can be either empty string (then the default face is chosen) or
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platform-specific face name. Examples are "helvetica" under Unix or
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"Times New Roman" under Windows.}
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\docparam{fixed\_face}{The same thing for fixed face ( <TT>..</TT> )}
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\docparam{sizes}{This is an array of 7 items of {\it int} type.
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The values represent size of font with HTML size from -2 to +4
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( <FONT SIZE=-2> to <FONT SIZE=+4> ). Default sizes are used if {\it sizes}
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is NULL.}
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\wxheading{Defaults}
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Default font sizes are defined by constants wxHTML\_FONT\_SIZE\_1,
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wxHTML\_FONT\_SIZE\_2, ..., wxHTML\_FONT\_SIZE\_7. Note that they differ among
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platforms. Default face names are empty strings.
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\membersection{wxHtmlWindow::SetPage}\label{wxhtmlwindowsetpage}
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\func{bool}{SetPage}{\param{const wxString\& }{source}}
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Sets HTML page and display it. This won't {\bf load} the page!!
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It will display the {\it source}. See example:
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\begin{verbatim}
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htmlwin -> SetPage("<html><body>Hello, world!</body></html>");
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\end{verbatim}
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If you want to load a document from some location use
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\helpref{LoadPage}{wxhtmlwindowloadpage} instead.
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\wxheading{Parameters}
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\docparam{source}{The HTML document source to be displayed.}
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\wxheading{Return value}
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false if an error occurred, true otherwise.
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\membersection{wxHtmlWindow::SetRelatedFrame}\label{wxhtmlwindowsetrelatedframe}
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\func{void}{SetRelatedFrame}{\param{wxFrame* }{frame}, \param{const wxString\& }{format}}
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Sets the frame in which page title will be displayed. {\it format} is format of
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frame title, e.g. "HtmlHelp : \%s". It must contain exactly one \%s. This
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\%s is substituted with HTML page title.
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\membersection{wxHtmlWindow::SetRelatedStatusBar}\label{wxhtmlwindowsetrelatedstatusbar}
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\func{void}{SetRelatedStatusBar}{\param{int }{bar}}
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{\bf After} calling \helpref{SetRelatedFrame}{wxhtmlwindowsetrelatedframe},
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this sets statusbar slot where messages will be displayed.
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(Default is -1 = no messages.)
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\wxheading{Parameters}
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\docparam{bar}{statusbar slot number (0..n)}
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\membersection{wxHtmlWindow::ToText}\label{wxhtmlwindowtotext}
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\func{wxString}{ToText}{\void}
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Returns content of currently displayed page as plain text.
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\membersection{wxHtmlWindow::WriteCustomization}\label{wxhtmlwindowwritecustomization}
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\func{virtual void}{WriteCustomization}{\param{wxConfigBase }{*cfg}, \param{wxString }{path = wxEmptyString}}
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Saves custom settings into wxConfig. It uses the path 'path'
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if given, otherwise it saves info into currently selected path.
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Regardless of whether the path is given or not, the function creates sub-path
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{\tt wxHtmlWindow}.
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Saved values: all things set by SetFonts, SetBorders.
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\wxheading{Parameters}
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\docparam{cfg}{wxConfig to which you want to save the configuration.}
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\docparam{path}{Optional path in config tree. If not given, the current path is used.}
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\section{\class{wxHtmlLinkEvent}}\label{wxhtmllinkevent}
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This event class is used for the events generated by \helpref{wxHtmlWindow}{wxhtmlwindow}.
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\wxheading{Derived from}
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\helpref{wxCommandEvent}{wxcommandevent}\\
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\helpref{wxEvent}{wxevent}\\
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\helpref{wxObject}{wxobject}
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\wxheading{Include files}
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<wx/html/htmlwin.h>
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\wxheading{Event handling}
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To process input from a wxHtmlLinkEvent, use one of these event handler macros to
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direct input to member function that take a \helpref{wxHtmlLinkEvent}{wxhtmllinkevent} argument:
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\twocolwidtha{7cm}
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\begin{twocollist}
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\twocolitem{{\bf EVT\_HTML\_LINK\_CLICKED(id, func)}}{User clicked on an hyperlink.}
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\end{twocollist}
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxHtmlLinkEvent::wxHtmlLinkEvent}\label{wxhtmllinkeventctor}
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\func{}{wxHyperlinkEvent}{\param{int}{ id}, \param{const wxHtmlLinkInfo \&}{ linkinfo}}
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The constructor is not normally used by the user code.
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\membersection{wxHtmlLinkEvent::GetLinkInfo}\label{wxhtmllinkeventgetlinkinfo}
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\constfunc{const wxHtmlLinkInfo &}{GetLinkInfo}{\void}
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Returns the \helpref{wxHtmlLinkInfo}{wxhtmllinkinfo} which contains info about the cell clicked and the hyperlink it contains.
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\section{\class{wxHtmlCellEvent}}\label{wxhtmlcellevent}
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This event class is used for the events generated by \helpref{wxHtmlWindow}{wxhtmlwindow}.
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\wxheading{Derived from}
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\helpref{wxCommandEvent}{wxcommandevent}\\
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\helpref{wxEvent}{wxevent}\\
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\helpref{wxObject}{wxobject}
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\wxheading{Include files}
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<wx/html/htmlwin.h>
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\wxheading{Event handling}
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To process input from a wxHtmlCellEvent, use one of these event handler macros to
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direct input to member function that take a \helpref{wxHtmlCellEvent}{wxhtmlcellevent} argument:
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\twocolwidtha{7cm}
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\begin{twocollist}
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\twocolitem{{\bf EVT\_HTML\_CELL\_HOVER(id, func)}}{User moved the mouse over a \helpref{wxHtmlCell}{wxhtmlcell}.}
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\twocolitem{{\bf EVT\_HTML\_CELL\_CLICKED(id, func)}}{User clicked on a \helpref{wxHtmlCell}{wxhtmlcell}. When handling this event, remember to use \helpref{wxHtmlCell::SetLinkClicked(true)}{wxhtmlcelleventsetlinkclicked} if the cell contains a link.}
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\end{twocollist}
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxHtmlCellEvent::wxHtmlCellEvent}\label{wxhtmlcelleventctor}
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\func{}{wxHtmlCellEvent}{\param{wxEventType}{ commandType}, \param{int}{ id}, \param{wxHtmlCell *}{ cell}, \param{const wxPoint \&}{ point}}
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The constructor is not normally used by the user code.
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\membersection{wxHtmlCellEvent::GetCell}\label{wxhtmlcelleventgetcell}
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\constfunc{wxHtmlCell *}{GetCell}{\void}
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Returns the \helpref{wxHtmlCellEvent}{wxhtmlcellevent} associated with the event.
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\membersection{wxHtmlCellEvent::GetPoint}\label{wxhtmlcelleventgetpoint}
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\constfunc{wxPoint}{GetPoint}{\void}
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Returns the \helpref{wxPoint}{wxpoint} associated with the event.
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\membersection{wxHtmlCellEvent::SetLinkClicked}\label{wxhtmlcelleventsetlinkclicked}
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\func{bool}{SetLinkClicked}{\param{bool}{ linkclicked}}
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Call this function with {\tt linkclicked} set to \true if the cell which has been clicked contained a link or
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\false otherwise (which is the default). With this function the event handler can return info to the
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wxHtmlWindow which sent the event.
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\membersection{wxHtmlCellEvent::GetLinkClicked}\label{wxhtmlcelleventgetlinkclicked}
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\constfunc{bool}{GetLinkClicked}{\void}
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Returns \true if \helpref{SetLinkClicked(true)}{wxhtmlcelleventsetlinkclicked} has previously been called;
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\false otherwise.
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