corrected access to NULL parameters in wxGetOsVersion

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

diff --git a/docs/latex/wx/pen.tex b/docs/latex/wx/pen.tex
index c0490876e92d789a4f9c8c092a8bb09af3f07ece..5a79e8f523cc23f11230d9afa759fadec2d3fa44 100644 (file)
--- a/docs/latex/wx/pen.tex
+++ b/docs/latex/wx/pen.tex
@@ -4,6 +4,34 @@ A pen is a drawing tool for drawing outlines. It is used for drawing
 lines and painting the outline of rectangles, ellipses, etc. It has a
 colour, a width and a style. 
 
 lines and painting the outline of rectangles, ellipses, etc. It has a
 colour, a width and a style. 
 

+\wxheading{Derived from}
+
+\helpref{wxGDIObject}{wxgdiobject}\\
+\helpref{wxObject}{wxobject}
+
+\wxheading{Include files}
+
+<wx/pen.h>
+
+\wxheading{Predefined objects}
+
+Objects:
+
+{\bf wxNullPen}
+
+Pointers:
+
+{\bf wxRED\_PEN\\
+wxCYAN\_PEN\\
+wxGREEN\_PEN\\
+wxBLACK\_PEN\\
+wxWHITE\_PEN\\
+wxTRANSPARENT\_PEN\\
+wxBLACK\_DASHED\_PEN\\
+wxGREY\_PEN\\
+wxMEDIUM\_GREY\_PEN\\
+wxLIGHT\_GREY\_PEN}
+

 \wxheading{Remarks}
 
 On a monochrome display, wxWindows shows all non-white pens as black.
 \wxheading{Remarks}
 
 On a monochrome display, wxWindows shows all non-white pens as black.


@@ -20,8 +48,13 @@ get a pointer to a pen by using the global list of pens {\bf
 wxThePenList}, and calling the member function {\bf FindOrCreatePen}.
 See the entry for \helpref{wxPenList}{wxpenlist}.
 
 wxThePenList}, and calling the member function {\bf FindOrCreatePen}.
 See the entry for \helpref{wxPenList}{wxpenlist}.
 

-TODO: an overview for wxPen.
+wxPen uses a reference counting system, so assignments between brushes are very
+cheap. You can therefore use actual wxPen objects instead of pointers without
+efficiency problems. Once one wxPen object changes its data it will create its
+own pen data internally so that other pens, which previously shared the
+data using the reference counting, are not affected.

 
 

+%TODO: an overview for wxPen.

 \wxheading{See also}
 
 \helpref{wxPenList}{wxpenlist}, \helpref{wxDC}{wxdc}, \helpref{wxDC::SetPen}{wxdcsetpen}
 \wxheading{See also}
 
 \helpref{wxPenList}{wxpenlist}, \helpref{wxDC}{wxdc}, \helpref{wxDC::SetPen}{wxdcsetpen}


@@ -51,10 +84,6 @@ Constructs a stippled pen from a stipple bitmap and a width.
 
 Copy constructor. This uses reference counting so is a cheap operation.
 
 
 Copy constructor. This uses reference counting so is a cheap operation.
 

-\func{}{wxPen}{\param{const wxPen*}{ pen}}
-
-Copy constructor. This uses reference counting so is a cheap operation.
-

 \wxheading{Parameters}
 
 \docparam{colour}{A colour object.}
 \wxheading{Parameters}
 
 \docparam{colour}{A colour object.}


@@ -68,9 +97,6 @@ the style is wxDOT, wxLONG\_DASH, wxSHORT\_DASH, wxDOT\_DASH, or wxUSER\_DASH.}
 
 \docparam{pen}{A pointer or reference to a pen to copy.}
 
 
 \docparam{pen}{A pointer or reference to a pen to copy.}
 

-\docparam{width}{Pen width. Under Windows, the pen width cannot be greater than 1 if
-the style is wxDOT, wxLONG\_DASH, wxSHORT\_DASH, wxDOT\_DASH, or wxUSER\_DASH.}
-  

 \docparam{style}{The style may be one of the following:
 
 \begin{twocollist}\itemsep=0pt
 \docparam{style}{The style may be one of the following:
 
 \begin{twocollist}\itemsep=0pt


@@ -92,17 +118,26 @@ the style is wxDOT, wxLONG\_DASH, wxSHORT\_DASH, wxDOT\_DASH, or wxUSER\_DASH.}
 
 \wxheading{Remarks}
 
 
 \wxheading{Remarks}
 

+Different versions of Windows and different versions of other platforms
+support {\it very} different subsets of the styles above - there is no
+similarity even between Windows95 and Windows98 - so handle with care.
+

 If the named colour form is used, an appropriate {\bf wxColour} structure
 is found in the colour database.
 
 If the named colour form is used, an appropriate {\bf wxColour} structure
 is found in the colour database.
 

-{\it style} may be one of wxSOLID, wxDOT, wxLONG\_DASH, wxSHORT\_DASH and
-wxDOT\_DASH.
-

 \wxheading{See also}
 
 \helpref{wxPen::SetStyle}{wxpensetstyle}, \helpref{wxPen::SetColour}{wxpensetcolour},\rtfsp
 \helpref{wxPen::SetWidth}{wxpensetwidth}, \helpref{wxPen::SetStipple}{wxpensetstipple}
 
 \wxheading{See also}
 
 \helpref{wxPen::SetStyle}{wxpensetstyle}, \helpref{wxPen::SetColour}{wxpensetcolour},\rtfsp
 \helpref{wxPen::SetWidth}{wxpensetwidth}, \helpref{wxPen::SetStipple}{wxpensetstipple}
 

+\perlnote{Constructors supported by wxPerl are:\par
+\begin{itemize}
+\item{Wx::Pen->new( colour, width, style )}
+\item{Wx::Pen->new( colourName, width, style )}
+\item{Wx::Pen->new( stipple, width )}
+\end{itemize}
+}
+

 \membersection{wxPen::\destruct{wxPen}}
 
 \func{}{\destruct{wxPen}}{\void}
 \membersection{wxPen::\destruct{wxPen}}
 
 \func{}{\destruct{wxPen}}{\void}


@@ -233,8 +268,7 @@ with the pen. The array is not deallocated by wxPen, but neither must it be
 deallocated by the calling application until the pen is deleted or this
 function is called with a NULL array.
 
 deallocated by the calling application until the pen is deleted or this
 function is called with a NULL array.
 

-TODO: describe in detail.
-
+%TODO: describe in detail.

 \wxheading{See also}
 
 \helpref{wxPen::GetDashes}{wxpengetdashes}
 \wxheading{See also}
 
 \helpref{wxPen::GetDashes}{wxpengetdashes}


@@ -367,7 +401,9 @@ to the pen list, and returns it.
 
 \docparam{colour}{Colour object.}
 
 
 \docparam{colour}{Colour object.}
 

-\docparam{colourName}{Colour name, which should be in the colour database.}
+\docparam{colourName}{Colour name, which should be in the \helpref{colour database}{wxcolourdatabase}.}
+
+\docparam{width}{Width of pen.}

 
 \docparam{style}{Pen style. See \helpref{wxPen::wxPen}{wxpenconstr} for a list of styles.}
 
 
 \docparam{style}{Pen style. See \helpref{wxPen::wxPen}{wxpenconstr} for a list of styles.}