Mercurial > sdl-ios-xcode
view src/events/SDL_keyboard_c.h @ 2866:e532417a6977
Fixed SDL 1.2 compatibility problem.
The API specifies that SDL_OpenAudio() will fill out the 'desired' audio spec
with the correct samples and size set by the driver. This value is important
since it may be used by applications that size audio buffers, etc.
However, we want to allow advanced applications to call SDL_OpenAudioDevice()
which gets passed a const 'desired' parameter, and have the correct data filled
into the 'obtained' parameter, possibly allowing or not allowing format changes.
So... 'obtained' becomes the audio format the user callback is expected to use,
and we add flags to allow the application to specify which format changes are
allowed.
Note: We really need to add a way to query the 'obtained' audio spec.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 13 Dec 2008 06:36:47 +0000 |
parents | 99210400e8b9 |
children | 88861448961f |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _SDL_keyboard_c_h #define _SDL_keyboard_c_h #include "SDL_keysym.h" #include "SDL_events.h" typedef struct SDL_Keyboard SDL_Keyboard; struct SDL_Keyboard { /* Free the keyboard when it's time */ void (*FreeKeyboard) (SDL_Keyboard * keyboard); /* Data common to all keyboards */ SDL_WindowID focus; Uint16 modstate; Uint8 keystate[SDL_NUM_SCANCODES]; SDLKey keymap[SDL_NUM_SCANCODES]; void *driverdata; }; /* Initialize the keyboard subsystem */ extern int SDL_KeyboardInit(void); /* Get the keyboard at an index */ extern SDL_Keyboard *SDL_GetKeyboard(int index); /* Add a keyboard, possibly reattaching at a particular index (or -1), returning the index of the keyboard, or -1 if there was an error. */ extern int SDL_AddKeyboard(const SDL_Keyboard * keyboard, int index); /* Remove a keyboard at an index, clearing the slot for later */ extern void SDL_DelKeyboard(int index); /* Clear the state of a keyboard at an index */ extern void SDL_ResetKeyboard(int index); /* Get the default keymap */ extern void SDL_GetDefaultKeymap(SDLKey * keymap); /* Set the mapping of scancode to key codes for this keyboard */ extern void SDL_SetKeymap(int index, int start, SDLKey * keys, int length); /* Set a platform-dependent key name, overriding the default platform-agnostic name. Encoded as UTF-8. The string is not copied, thus the pointer given to this function must stay valid forever (or at least until the call to VideoQuit()). */ extern void SDL_SetScancodeName(SDL_scancode scancode, const char *name); /* Set the keyboard focus window */ extern void SDL_SetKeyboardFocus(int index, SDL_WindowID windowID); /* Send a keyboard event for a keyboard at an index */ extern int SDL_SendKeyboardKey(int index, Uint8 state, SDL_scancode scancode); /* Send keyboard text input for a keyboard at an index */ extern int SDL_SendKeyboardText(int index, const char *text); /* Shutdown the keyboard subsystem */ extern void SDL_KeyboardQuit(void); #endif /* _SDL_keyboard_c_h */ /* vi: set ts=4 sw=4 expandtab: */