Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_VideoModeOK.3 @ 2938:2929ed239d2a
Adjusted default choice of audio driver.
If a driver can definitely see available devices, it is chosen. Otherwise,
we'll take the first driver that initializes but saw no devices...this might
be because it can't enumerate them, or there really aren't any available.
This prevents the dsp driver from hogging control when there are no /dev/dsp*
nodes (for example, on a Linux box with ALSA and no OSS emulation).
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Thu, 01 Jan 2009 07:54:58 +0000 |
| parents | 546f7c1eb755 |
| children | 1238da4a7112 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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1 .TH "SDL_VideoModeOK" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
|
2283
546f7c1eb755
Merged revision 3472 from SDL 1.2, fixing bug #493
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
3 SDL_VideoModeOK \- Check to see if a particular video mode is supported\&. |
| 0 | 4 .SH "SYNOPSIS" |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBint \fBSDL_VideoModeOK\fP\fR(\fBint width, int height, int bpp, Uint32 flags\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
| 11 \fBSDL_VideoModeOK\fP returns \fB0\fR if the requested mode is not supported under any bit depth, or returns the bits-per-pixel of the closest available mode with the given width, height and requested \fIsurface\fR flags (see \fI\fBSDL_SetVideoMode\fP\fR)\&. | |
| 12 .PP | |
| 13 The bits-per-pixel value returned is only a suggested mode\&. You can usually request and bpp you want when \fIsetting\fR the video mode and SDL will emulate that color depth with a shadow video surface\&. | |
| 14 .PP | |
| 15 The arguments to \fBSDL_VideoModeOK\fP are the same ones you would pass to \fISDL_SetVideoMode\fR | |
| 16 .SH "EXAMPLE" | |
| 17 .PP | |
| 18 .nf | |
| 19 \f(CWSDL_Surface *screen; | |
| 20 Uint32 bpp; | |
| 21 \&. | |
| 22 \&. | |
| 23 \&. | |
| 24 printf("Checking mode 640x480@16bpp\&. | |
| 25 "); | |
| 26 bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE); | |
| 27 | |
| 28 if(!bpp){ | |
| 29 printf("Mode not available\&. | |
| 30 "); | |
| 31 exit(-1); | |
| 32 } | |
| 33 | |
| 34 printf("SDL Recommends 640x480@%dbpp\&. | |
| 35 ", bpp); | |
| 36 screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE); | |
| 37 \&. | |
| 38 \&.\fR | |
| 39 .fi | |
| 40 .PP | |
| 41 .SH "SEE ALSO" | |
| 42 .PP | |
| 43 \fI\fBSDL_SetVideoMode\fP\fR, \fI\fBSDL_GetVideoInfo\fP\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
44 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |