view docs/man3/SDL_GL_GetAttribute.3 @ 1812:9c882e94b545

Fixed bug #208 So, here's a patch with a reimplementation of QZ_SetIcon() that does what I described above. I apologize for the delay, I've been quite busy in the last few days. It appears to work here on 10.4.5 PPC in the limited testing that I've done; I'll try to test it on 10.3.9 and 10.2.8 as well, but that might take another week or so. Please test on i386. Regarding alpha channels, per-surface alpha, and color keys, the same semantics as for regular blits to an RGB surface should apply (for the final icon composited onto the dock), unless I made a mistake - except in one pathological case: if the icon surface has an alpha channel, its SDL_SRCALPHA flag is not set (i.e. it has been explicitly cleared, since it's on by default for RGBA surfaces), and it has a color key, plus an explicit mask was specified (instead of the one autogenerated from the colorkey), then the color-keyed areas appear black instead of transparent. I found no elegant way of fixing this, was too lazy to implement the inelegant one, and decided that it isn't worth the effort (but if someone disagrees, I can do it).
author Sam Lantinga <slouken@libsdl.org>
date Thu, 11 May 2006 03:45:55 +0000
parents e5bc29de3f0a
children 546f7c1eb755
line wrap: on
line source

.TH "SDL_GL_GetAttribute" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_GL_GetAttribute\- Get the value of a special SDL/OpenGL attribute
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBint \fBSDL_GL_GetAttribute\fP\fR(\fBSDLGLattr attr, int *value\fR);
.SH "DESCRIPTION"
.PP
Places the value of the SDL/OpenGL \fIattribute\fR \fBattr\fR into \fBvalue\fR\&. This is useful after a call to \fI\fBSDL_SetVideoMode\fP\fR to check whether your attributes have been \fIset\fR as you expected\&.
.SH "RETURN VALUE"
.PP
Returns \fB0\fR on success, or \fB-1\fR on an error\&.
.SH "SEE ALSO"
.PP
\fI\fBSDL_GL_SetAttribute\fP\fR, \fIGL Attributes\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01