view docs/html/time.html @ 753:b14fdadd8311

Date: Thu, 4 Dec 2003 07:48:40 +0200 From: "Mike Gorchak" Subject: SDL/QNX6 new patch Here in attachment my patch for the SDL/QNX6 again :) It contain non-crtitical/cosmetic fixes: 1. Fixed window centering at other than the first consoles. 2. Fixed window centering algorithm in case when window height or width are greater than the desktop resolution. 3. Fixed window positioning on other than the first consoles. 4. Fixed occasional input focus lost when switching to fullscreen. 5. Removed the Photon's default chroma color for the overlays, added RGB(12, 6, 12) color instead (very dark pink). 6. Added more checks to the YUV overlay code (fixed crashes during resolution mode switches). 7. Added support for Enter/Backspace keys in unicode mode (used by Maelstrom and by other games). 8. Fixed window restore/maximize function. It works, finally.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 10 Dec 2003 12:35:56 +0000
parents 55f1f1b3e27d
children 355632dca928
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>Chapter 13. Time</A
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><DT
><A
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>SDL_GetTicks</A
> &#8212; Get the number of milliseconds since the SDL library initialization.</DT
><DT
><A
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>SDL_Delay</A
> &#8212; Wait a specified number of milliseconds before returning.</DT
><DT
><A
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>SDL_AddTimer</A
> &#8212; Add a timer which will call a callback after the specified number of milliseconds has
elapsed.</DT
><DT
><A
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>SDL_RemoveTimer</A
> &#8212; Remove a timer which was added with
<A
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>SDL_AddTimer</A
>.</DT
><DT
><A
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>SDL_SetTimer</A
> &#8212; Set a callback to run after the specified number of milliseconds has
elapsed.</DT
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><P
>SDL provides several cross-platform functions for dealing with time.
It provides a way to get the current time, a way to wait a little while,
and a simple timer mechanism.  These functions give you two ways of moving an
object every x milliseconds:

<P
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>Use a timer callback function.  This may have the bad effect that it runs in a seperate thread or uses alarm signals, but it's easier to implement.</P
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>Or you can get the number of milliseconds passed, and move the object if, for example, 30 ms passed.</P
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