Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_MapRGB.3 @ 816:428f688f2ad2
Date: Fri, 13 Feb 2004 17:03:16 +0100
From: Max Horn
Subject: Modifier key fix
The internal modifier state can get out of sync with reality. To
trigger this, do for example this:
1) Launch an SDL app
2) Alt-click on the desktop (this will hide the SDL app).
3) Bring the SDL app back to the front
4) SDL will still think alt is pressed (and as such will treat left
clicks like middle clicks). If you press and release alt, it'll be fine
again.
The attached patch cures this by rechecking the modifier state whenever
we process an event.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Fri, 13 Feb 2004 17:57:16 +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
|
1 .TH "SDL_MapRGB" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
3 SDL_MapRGB\- Map a RGB color value to a pixel format\&. | |
4 .SH "SYNOPSIS" | |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 .sp | |
8 \fBUint32 \fBSDL_MapRGB\fP\fR(\fBSDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b\fR); | |
9 .SH "DESCRIPTION" | |
10 .PP | |
11 Maps the RGB color value to the specified pixel format and returns the pixel value as a 32-bit int\&. | |
12 .PP | |
13 If the format has a palette (8-bit) the index of the closest matching color in the palette will be returned\&. | |
14 .PP | |
15 If the specified pixel format has an alpha component it will be returned as all 1 bits (fully opaque)\&. | |
16 .SH "RETURN VALUE" | |
17 .PP | |
18 A pixel value best approximating the given RGB color value for a given pixel format\&. If the pixel format bpp (color depth) is less than 32-bpp then the unused upper bits of the return value can safely be ignored (e\&.g\&., with a 16-bpp format the return value can be assigned to a \fBUint16\fP, and similarly a \fBUint8\fP for an 8-bpp format)\&. | |
19 .SH "SEE ALSO" | |
20 .PP | |
21 \fI\fBSDL_GetRGB\fP\fR, \fI\fBSDL_GetRGBA\fP\fR, \fI\fBSDL_MapRGBA\fP\fR, \fI\fBSDL_PixelFormat\fR\fR | |
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
22 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |