Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_GetModState.3 @ 4168:69bcba65c388 SDL-1.2
Fixed bug #526
Comment #1 From Simon Howard 2009-03-20 16:50:56
Hi,
I'm the author of Chocolate Doom, one of the other source ports that James
mentioned. This is a patch against the current SVN version of SDL 1.2 that
fixes the bug. It has been tested and hopefully should be obviously correct
from examining the changes. I'll give a brief explanation.
When the palette is set with SDL_SetPalette, the IDirectDrawPalette_SetEntries
DirectX function is invoked. However, when this happens, a WM_PALETTECHANGED
message is sent to the window.
A WM_PALETTECHANGED message can also be received if the palette is changed for
some other reason, like if the system palette is changed. Therefore, the
palette change handler (DX5_PaletteChanged) has code to deal with this case.
It distinguishes "expected" palette changes (set with SDL_SetPalette) from
"unexpected" palette changes using the colorchange_expected variable, which is
set before calling IDirectDrawPalette_SetEntries. However, the code to set
this variable is missing in the fullscreen code path. By setting this
variable, the palette change is handled properly and the freezes go away.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 13 Apr 2009 00:53:12 +0000 |
| parents | 4e3b250c950e |
| 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_GetModState" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
|
4107
4e3b250c950e
Erik Heckers fixed bug #493
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
3 SDL_GetModState \- Get the state of modifier keys\&. |
| 0 | 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
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parents:
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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
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Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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54 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59 |