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Date: Wed, 4 Mar 2009 15:38:22 +0200 From: "Mike Gorchak" Subject: Re: About QNX support in SDL 1.3 Here is another batch of patches. 1) Makefile.in - added SDL_opengles.h header as header to install. 2) configure.in - Added special define to detect Common Lite OpenGL ES library in case if Common library is not installed. Added check for clock_gettime in libc (in QNX it is in libc). 3) SDL_config.h.in - Added SDL_VIDEO_RENDER_OPENGL_ES and SDL_VIDEO_OPENGL_ES declarations for configure script autodetection. 4) SDL_opengles.h - Added GL_API definition if it is not defined. Added extension GL_OES_draw_texture because OpenGL ES Renderer uses it without declaration. Added GL_OES_vertex_buffer_object extension, which is supported under QNX OpenGL ES. Added GL_OES_single_precision extension. 5) To the test directory I've added building OpenGL ES test applications through the autotools suite. Was support for iPhone IDE building only.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 04 Mar 2009 15:10:47 +0000
parents 355632dca928
children
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<HTML
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>Events</TITLE
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>Chapter 8. Events</H1
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>Table of Contents</B
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><DT
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>Introduction</A
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>SDL Event Structures.</A
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>Event Functions.</A
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>Introduction</H1
><P
>Event handling allows your application to receive input from the user. Event handling is initalised (along with video) with a call to:
<PRE
CLASS="PROGRAMLISTING"
>SDL_Init(SDL_INIT_VIDEO);</PRE
>
Internally, SDL stores all the events waiting to be handled in an event queue. Using functions like <A
HREF="sdlpollevent.html"
><TT
CLASS="FUNCTION"
>SDL_PollEvent</TT
></A
> and <A
HREF="sdlpeepevents.html"
><TT
CLASS="FUNCTION"
>SDL_PeepEvents</TT
></A
> you can observe and handle waiting input events.</P
><P
>The key to event handling in SDL is the <A
HREF="sdlevent.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Event</SPAN
></A
> union. The event queue itself is composed of a series of <SPAN
CLASS="STRUCTNAME"
>SDL_Event</SPAN
> unions, one for each waiting event. <SPAN
CLASS="STRUCTNAME"
>SDL_Event</SPAN
> unions are read from the queue with the <TT
CLASS="FUNCTION"
>SDL_PollEvent</TT
> function and it is then up to the application to process the information stored with them.</P
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