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Fixed bug #38 I'm using SDL 1.2.9 with Visual C++ 7.0 on Windows 2000. Here's the setup: my game starts in a window, with SDL_WM_GrabInput(SDL_GRAB_ON) to constrain the cursor to the game window. The mouse cursor is outside of the window when the game launches, and when the window appears the cursor is grabbed and placed at the top left corner of the inside of the game window. At this point, if I click the mouse without moving it, the SDL_MOUSEBUTTONDOWN event's mouse coordinates are (65535,65535).
author Sam Lantinga <slouken@libsdl.org>
date Tue, 14 Mar 2006 06:00:30 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_Init</TITLE
><META
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><HR
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><H1
><A
NAME="SDLINIT"
></A
>SDL_Init</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN440"
></A
><H2
>Name</H2
>SDL_Init&nbsp;--&nbsp;Initializes SDL</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN443"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN444"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_Init</B
></CODE
>(Uint32 flags);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN450"
></A
><H2
>Description</H2
><P
>Initializes SDL. This should be called before all other SDL functions. The <TT
CLASS="PARAMETER"
><I
>flags</I
></TT
> parameter specifies what part(s) of SDL to initialize.</P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN454"
></A
><P
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_INIT_TIMER</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Initializes the <A
HREF="time.html"
>timer</A
> subsystem.</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_INIT_AUDIO</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Initializes the <A
HREF="audio.html"
>audio</A
> subsystem.</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_INIT_VIDEO</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Initializes the <A
HREF="video.html"
>video</A
> subsystem.</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_INIT_CDROM</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Initializes the <A
HREF="cdrom.html"
>cdrom</A
> subsystem.</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_INIT_JOYSTICK</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Initializes the <A
HREF="joystick.html"
>joystick</A
> subsystem.</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_INIT_EVERYTHING</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Initialize all of the above.</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_INIT_NOPARACHUTE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Prevents SDL from catching fatal signals.</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_INIT_EVENTTHREAD</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN494"
></A
><H2
>Return Value</H2
><P
>Returns <SPAN
CLASS="RETURNVALUE"
>-1</SPAN
> on an error or <SPAN
CLASS="RETURNVALUE"
>0</SPAN
> on success.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN499"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlquit.html"
><TT
CLASS="FUNCTION"
>SDL_Quit</TT
></A
>,
<A
HREF="sdlinitsubsystem.html"
><TT
CLASS="FUNCTION"
>SDL_InitSubSystem</TT
></A
></P
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