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MacFormat España 21
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Programación
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VideoToolbox
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Pre-compiled headers
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VideoToolbox.c
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1995-06-01
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/*
VideoToolbox.c
You should ask THINK C to precompile this file in order to precompile the VideoToolbox.h header.
(If your aim is to produce an external code resource for MATLAB then use VideoToolboxMATLAB.c
instead of this file.)
(If you're using Metrowerks CodeWarrior, then use the VideoToolbox.pch instead of this file.
It will automatically generate the correct file name for the precompiled header and store
it in the right place.)
All the pre-compiled headers should be stored in
"VideoToolbox:VideoToolboxSources:Precompiled headers". Here's my naming
convention for pre-compiled headers:
"VideoToolbox.pre" = THINK C, 68k, 2-byte int, "universal" floating format, w/o 8881 fpu.
"VideoToolbox.f.pre" = THINK C, 68k, 2-byte int, "universal" floating format, w 8881 fpu.
"VideoToolbox.68k...." = CodeWarrior, 68k,...
"VideoToolbox.ppc...." = CodeWarrior, PowerPC, ...
INSTRUCTIONS:
While you have this file open in THINK C, select Precompile from the Source menu.
Save the result as either "VideoToolbox.f.pre" (if 8881 code is enabled) or "VideoToolbox.pre"
(if 8881 code is disabled) in the "VideoToolbox:VideoToolboxSources:Precompiled headers" folder.
You can then speed up the compilation of any project roughly tenfold by typing the line
#include "VideoToolbox.f.pre"
(or whichever prefix file is appropriate) into the Edit:Options:THINK C:Prefix window.
Note that Precompilation ignores the project prefix.
Unfortunately THINK C never checks whether a precompiled header is out of
date. If you update any of the Apple, Standard C, or VideoToolbox.h headers,
then you should recreate the precompiled header. Also, the precompiled header
will reflect the compiler and language settings in effect at the time of
precompilation (e.g. size of int and double), so if you have different projects
with different settings then you may need various versions of the precompiled
header.
You can add this file to your project. It won't generate any code or affect your
project in any way. It merely keeps this file handy.
HISTORY:
2/27/93 dgp Wrote it.
4/22/93 dgp Updated comments.
9/8/93 dgp Updated comments.
9/12/93 dgp Updated comments.
9/15/93 dgp Updated comments.
10/20/94 dgp Update comments.
6/1/95 dgp updated comments, referred Metrowerks CodeWarrior users to VideoToolbox.pch file.
*/
#include "VideoToolbox.h"