Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_SetColors.3 @ 967:cda407d627a3
Date: Tue, 5 Oct 2004 11:04:02 -0400
From: Bob Ippolito
Subject: [SDL] PATCH: Fix for release count bug in SDL_QuartzWM
SDL_QuartzWM incorrectly does [window close]; [window release];
The semantics for -[NSWindow close] are as follows:
Removes the receiver from the screen. If the receiver is set to be
released when closed, a release message is sent to the object after the
current event is completed. For an NSWindow object, the default is to
be released on closing, while for an NSPanel object, the default is not
to be released. You can use the setReleasedWhenClosed: method to change
the default behavior.
This patch simply removes the incorrect release.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 12 Nov 2004 21:29:52 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_SetColors" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_SetColors\- Sets a portion of the colormap for the given 8-bit surface\&. | |
| 4 .SH "SYNOPSIS" | |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBint \fBSDL_SetColors\fP\fR(\fBSDL_Surface *surface, SDL_Color *colors, int firstcolor, int ncolors\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
| 11 Sets a portion of the colormap for the given 8-bit surface\&. | |
| 12 .PP | |
| 13 When \fBsurface\fR is the surface associated with the current display, the display colormap will be updated with the requested colors\&. If \fBSDL_HWPALETTE\fP was set in \fISDL_SetVideoMode\fR flags, \fBSDL_SetColors\fP will always return \fB1\fR, and the palette is guaranteed to be set the way you desire, even if the window colormap has to be warped or run under emulation\&. | |
| 14 .PP | |
| 15 The color components of a \fI\fBSDL_Color\fR\fR structure are 8-bits in size, giving you a total of 256^3 =16777216 colors\&. | |
| 16 .PP | |
| 17 Palettized (8-bit) screen surfaces with the \fBSDL_HWPALETTE\fP flag have two palettes, a logical palette that is used for mapping blits to/from the surface and a physical palette (that determines how the hardware will map the colors to the display)\&. \fBSDL_SetColors\fP modifies both palettes (if present), and is equivalent to calling \fISDL_SetPalette\fR with the \fBflags\fR set to \fB(SDL_LOGPAL | SDL_PHYSPAL)\fP\&. | |
| 18 .SH "RETURN VALUE" | |
| 19 .PP | |
| 20 If \fBsurface\fR is not a palettized surface, this function does nothing, returning \fB0\fR\&. If all of the colors were set as passed to \fBSDL_SetColors\fP, it will return \fB1\fR\&. If not all the color entries were set exactly as given, it will return \fB0\fR, and you should look at the surface palette to determine the actual color palette\&. | |
| 21 .SH "EXAMPLE" | |
| 22 .PP | |
| 23 .nf | |
| 24 \f(CW/* Create a display surface with a grayscale palette */ | |
| 25 SDL_Surface *screen; | |
| 26 SDL_Color colors[256]; | |
| 27 int i; | |
| 28 \&. | |
| 29 \&. | |
| 30 \&. | |
| 31 /* Fill colors with color information */ | |
| 32 for(i=0;i<256;i++){ | |
| 33 colors[i]\&.r=i; | |
| 34 colors[i]\&.g=i; | |
| 35 colors[i]\&.b=i; | |
| 36 } | |
| 37 | |
| 38 /* Create display */ | |
| 39 screen=SDL_SetVideoMode(640, 480, 8, SDL_HWPALETTE); | |
| 40 if(!screen){ | |
| 41 printf("Couldn\&'t set video mode: %s | |
| 42 ", SDL_GetError()); | |
| 43 exit(-1); | |
| 44 } | |
| 45 | |
| 46 /* Set palette */ | |
| 47 SDL_SetColors(screen, colors, 0, 256); | |
| 48 \&. | |
| 49 \&. | |
| 50 \&. | |
| 51 \&.\fR | |
| 52 .fi | |
| 53 .PP | |
| 54 .SH "SEE ALSO" | |
| 55 .PP | |
| 56 \fI\fBSDL_Color\fR\fR \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_SetPalette\fP\fR, \fI\fBSDL_SetVideoMode\fP\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
57 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |