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view docs/html/sdlshowcursor.html @ 4355:9b464226e541 SDL-1.2

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Fixed bug #855 Ludwig Nussel 2009-10-18 06:31:52 PDT an mprotect call was added to fix bug 528. However that results in a buffer that allows writing and code execution. Ie the no-execute security features of modern operating systems are defeated this way. Two mprotect calls are needed. One to make the buffer executable but not writeable when done and another one to make the buffer writeable again if the content needs to be changed.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 18 Oct 2009 17:31:37 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_ShowCursor</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
TITLE="SDL Library Documentation"
HREF="index.html"><LINK
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TITLE="Video"
HREF="video.html"><LINK
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TITLE="SDL_GetCursor"
HREF="sdlgetcursor.html"><LINK
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><BODY
CLASS="REFENTRY"
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><HR
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><H1
><A
NAME="SDLSHOWCURSOR"
></A
>SDL_ShowCursor</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN2615"
></A
><H2
>Name</H2
>SDL_ShowCursor&nbsp;--&nbsp;Toggle whether or not the cursor is shown on the screen.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN2618"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN2619"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_ShowCursor</B
></CODE
>(int toggle);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2625"
></A
><H2
>Description</H2
><P
>Toggle whether or not the cursor is shown on the screen. Passing <TT
CLASS="LITERAL"
>SDL_ENABLE</TT
> displays the cursor and passing <TT
CLASS="LITERAL"
>SDL_DISABLE</TT
> hides it. The current state of the mouse cursor can be queried by passing <TT
CLASS="LITERAL"
>SDL_QUERY</TT
>, either <TT
CLASS="LITERAL"
>SDL_DISABLE</TT
> or <TT
CLASS="LITERAL"
>SDL_ENABLE</TT
> will be returned.</P
><P
>The cursor starts off displayed, but can be turned off.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2634"
></A
><H2
>Return Value</H2
><P
>Returns the current state of the cursor.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2637"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlcreatecursor.html"
><TT
CLASS="FUNCTION"
>SDL_CreateCursor</TT
></A
>,
<A
HREF="sdlsetcursor.html"
><TT
CLASS="FUNCTION"
>SDL_SetCursor</TT
></A
></P
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