patch 1306473

[wxWidgets.git] / docs / latex / wx / vscroll.tex

diff --git a/docs/latex/wx/vscroll.tex b/docs/latex/wx/vscroll.tex
index 1f7a07fab45cbcc2f238a34a1ae86df9c3dd939c..d304d6f1726d42bcf46106015e0038590ca1ac00 100644 (file)
--- a/docs/latex/wx/vscroll.tex
+++ b/docs/latex/wx/vscroll.tex
@@ -6,7 +6,7 @@
 %% Created:     30.05.03
 %% RCS-ID:      $Id$
 %% Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
-%% License:     wxWidgets license
+%% License:     wxWindows license
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 \section{\class{wxVScrolledWindow}}\label{wxvscrolledwindow}
@@ -115,12 +115,22 @@ try to make the best guess possible.
 
 Returns the index of the first currently visible line.
 
+This is same as \helpref{GetVisibleBegin}{wxvscrolledwindowgetvisiblebegin} and
+exists only for symmetry with \helpref{GetLastVisibleLine}{wxvscrolledwindowgetlastvisibleline}.
+
 
 \membersection{wxVScrolledWindow::GetLastVisibleLine}\label{wxvscrolledwindowgetlastvisibleline}
 
 \constfunc{size\_t}{GetLastVisibleLine}{\void}
 
-Returns the index of the last currently visible line.
+Returns the index of the last currently visible line. Note that this method
+returns \texttt{(size\_t)-1} (i.e. a huge positive number) if the control is
+empty so if this is possible you should use \helpref{GetVisibleEnd}{wxvscrolledwindowgetvisibleend} 
+instead.
+
+\wxheading{See also}
+
+\helpref{GetFirstVisibleLine}{wxvscrolledwindowgetfirstvisibleline}
 
 
 \membersection{wxVScrolledWindow::GetLineCount}\label{wxvscrolledwindowgetlinecount}
@@ -131,6 +141,31 @@ Get the number of lines this window contains (previously set by
 \helpref{SetLineCount()}{wxvscrolledwindowsetlinecount})
 
 
+\membersection{wxVScrolledWindow::GetVisibleBegin}\label{wxvscrolledwindowgetvisiblebegin}
+
+\constfunc{size\_t}{GetVisibleBegin}{\void}
+
+Returns the index of the first currently visible line.
+
+\wxheading{See also}
+
+\helpref{GetVisibleEnd}{wxvscrolledwindowgetvisibleend}
+
+
+\membersection{wxVScrolledWindow::GetVisibleEnd}\label{wxvscrolledwindowgetvisibleend}
+
+\constfunc{size\_t}{GetVisibleEnd}{\void}
+
+Returns the index of the first line after the currently visible one. If the
+return value is $0$ it means that no lines are currently shown (which only
+happens if the control is empty). Note that the index returned by this method
+is not always a valid index as it may be equal to \helpref{GetLineCount}{wxvscrolledwindowsetlinecount}.
+
+\wxheading{See also}
+
+\helpref{GetVisibleBegin}{wxvscrolledwindowgetvisiblebegin}
+
+
 \membersection{wxVScrolledWindow::HitTest}\label{wxvscrolledwindowhittest}
 
 \constfunc{int}{HitTest}{\param{wxCoord }{x}, \param{wxCoord }{y}}