Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_GetModState.3 @ 1626:a80e1e0880b8
Fixed bug #176
[I'm fixing this for the public headers, but I'm not going to bother for the SDL library code (yet)]
To clarify: Normaly, GCC (or, to be precise, the preprocessor) will ignore
this, and compile the code happily. However, one can specify -Wundef to get a
warning about this.
One can probably argue whether to consider this a bug or not; but I think that
(a) from a semantic point of view, using "#if FOO" when FOO is not defined is
strange, and (b) since it is possible to trigger a warning about this, and a
trivial fix exists, it should be corrected.
I can think of two alternative patches, BTW:
1) Simply use #define HAVE_FOO 0, instead of not defining HAVE_FOO at all
2) Change
#if HAVE_FOO
to
#if HAVE_FOO+0
which always does the right thing.
But I think I still prefer the attached patch :-).
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 13 Apr 2006 13:38:40 +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_GetModState" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_GetModState\- Get the state of modifier keys\&. | |
| 4 .SH "SYNOPSIS" | |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBSDLMod \fBSDL_GetModState\fP\fR(\fBvoid\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
11 Returns the current state of the modifier keys (CTRL, ALT, etc\&.)\&. |
| 0 | 12 .SH "RETURN VALUE" |
| 13 .PP | |
| 14 The return value can be an OR\&'d combination of the SDLMod enum\&. | |
| 15 .PP | |
| 16 .PP | |
| 17 .RS | |
| 18 \fBSDLMod\fR | |
| 19 .PP | |
| 20 .PP | |
| 21 .nf | |
| 22 \f(CWtypedef enum { | |
| 23 KMOD_NONE = 0x0000, | |
| 24 KMOD_LSHIFT= 0x0001, | |
| 25 KMOD_RSHIFT= 0x0002, | |
| 26 KMOD_LCTRL = 0x0040, | |
| 27 KMOD_RCTRL = 0x0080, | |
| 28 KMOD_LALT = 0x0100, | |
| 29 KMOD_RALT = 0x0200, | |
| 30 KMOD_LMETA = 0x0400, | |
| 31 KMOD_RMETA = 0x0800, | |
| 32 KMOD_NUM = 0x1000, | |
| 33 KMOD_CAPS = 0x2000, | |
| 34 KMOD_MODE = 0x4000, | |
| 35 } SDLMod;\fR | |
| 36 .fi | |
| 37 .PP | |
| 38 .RE | |
| 39 SDL also defines the following symbols for convenience: | |
| 40 .PP | |
| 41 .RS | |
| 42 .PP | |
| 43 .nf | |
| 44 \f(CW#define KMOD_CTRL (KMOD_LCTRL|KMOD_RCTRL) | |
| 45 #define KMOD_SHIFT (KMOD_LSHIFT|KMOD_RSHIFT) | |
| 46 #define KMOD_ALT (KMOD_LALT|KMOD_RALT) | |
| 47 #define KMOD_META (KMOD_LMETA|KMOD_RMETA)\fR | |
| 48 .fi | |
| 49 .PP | |
| 50 .RE | |
| 51 .SH "SEE ALSO" | |
| 52 .PP | |
| 53 \fI\fBSDL_GetKeyState\fP\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
54 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59 |