Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_GetRGBA.3 @ 631:52864d66d168
Date: Mon, 5 May 2003 00:08:51 -0400
From: Darrell Walisser
Subject: SDL Active Events Patch
Hi Guys,
I was reading sdl-devel the other day and remembered we don't handle
SDL_APPACTIVE and SDL_APPMOUSEFOCUS. I hacked together a quick patch to
do just this. One thing to note - there are actually two ways to
"iconify" the SDL window (which sets SDL_APPACTIVE): hiding the entire
application (for example, option-click on some other window) and
minimizing the window to the dock. I treat both as SDL_APPACTIVE, since
the window is no longer visible.
Cheers,
Darrell
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 29 May 2003 04:52:36 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
rev | line source |
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181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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1 .TH "SDL_GetRGBA" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
3 SDL_GetRGBA\- Get RGBA values from a pixel in the specified pixel format\&. | |
4 .SH "SYNOPSIS" | |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 .sp | |
8 \fBvoid \fBSDL_GetRGBA\fP\fR(\fBUint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a\fR); | |
9 .SH "DESCRIPTION" | |
10 .PP | |
11 Get RGBA component values from a pixel stored in the specified pixel format\&. | |
12 .PP | |
13 This function uses the entire 8-bit [0\&.\&.255] range when converting color components from pixel formats with less than 8-bits per RGB component (e\&.g\&., a completely white pixel in 16-bit RGB565 format would return [0xff, 0xff, 0xff] not [0xf8, 0xfc, 0xf8])\&. | |
14 .PP | |
15 If the surface has no alpha component, the alpha will be returned as 0xff (100% opaque)\&. | |
16 .SH "SEE ALSO" | |
17 .PP | |
18 \fISDL_GetRGB\fR, \fISDL_MapRGB\fR, \fISDL_MapRGBA\fR, \fISDL_PixelFormat\fR | |
181
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Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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19 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |