SDL  2.0
Data Structures | Functions | Variables
SDL_keyboard.c File Reference
#include "../SDL_internal.h"
#include "SDL_timer.h"
#include "SDL_events.h"
#include "SDL_events_c.h"
#include "SDL_assert.h"
#include "../video/SDL_sysvideo.h"
+ Include dependency graph for SDL_keyboard.c:

Go to the source code of this file.

Data Structures

struct  SDL_Keyboard

Functions

char * SDL_UCS4ToUTF8 (Uint32 ch, char *dst)
int SDL_KeyboardInit (void)
void SDL_ResetKeyboard (void)
void SDL_GetDefaultKeymap (SDL_Keycode *keymap)
void SDL_SetKeymap (int start, SDL_Keycode *keys, int length)
void SDL_SetScancodeName (SDL_Scancode scancode, const char *name)
SDL_Window * SDL_GetKeyboardFocus (void)
 Get the window which currently has keyboard focus.
void SDL_SetKeyboardFocus (SDL_Window *window)
int SDL_SendKeyboardKey (Uint8 state, SDL_Scancode scancode)
int SDL_SendKeyboardText (const char *text)
int SDL_SendEditingText (const char *text, int start, int length)
void SDL_KeyboardQuit (void)
const Uint8 * SDL_GetKeyboardState (int *numkeys)
 Get a snapshot of the current state of the keyboard.
SDL_Keymod SDL_GetModState (void)
 Get the current key modifier state for the keyboard.
void SDL_SetModState (SDL_Keymod modstate)
 Set the current key modifier state for the keyboard.
void SDL_ToggleModState (const SDL_Keymod modstate, const SDL_bool toggle)
SDL_Keycode SDL_GetKeyFromScancode (SDL_Scancode scancode)
 Get the key code corresponding to the given scancode according to the current keyboard layout.
SDL_Scancode SDL_GetScancodeFromKey (SDL_Keycode key)
 Get the scancode corresponding to the given key code according to the current keyboard layout.
const char * SDL_GetScancodeName (SDL_Scancode scancode)
 Get a human-readable name for a scancode.
SDL_Scancode SDL_GetScancodeFromName (const char *name)
 Get a scancode from a human-readable name.
const char * SDL_GetKeyName (SDL_Keycode key)
 Get a human-readable name for a key.
SDL_Keycode SDL_GetKeyFromName (const char *name)
 Get a key code from a human-readable name.

Variables

static SDL_Keyboard SDL_keyboard
static const SDL_Keycode SDL_default_keymap [SDL_NUM_SCANCODES]
static const char * SDL_scancode_names [SDL_NUM_SCANCODES]

Function Documentation

void SDL_GetDefaultKeymap ( SDL_Keycode *  keymap)

Definition at line 588 of file SDL_keyboard.c.

References SDL_default_keymap, and SDL_memcpy.

{
SDL_memcpy(keymap, SDL_default_keymap, sizeof(SDL_default_keymap));
}
SDL_Window* SDL_GetKeyboardFocus ( void  )

Get the window which currently has keyboard focus.

Definition at line 622 of file SDL_keyboard.c.

References SDL_Keyboard::focus, and SDL_keyboard.

{
SDL_Keyboard *keyboard = &SDL_keyboard;
return keyboard->focus;
}
const Uint8* SDL_GetKeyboardState ( int *  numkeys)

Get a snapshot of the current state of the keyboard.

Parameters
numkeysif non-NULL, receives the length of the returned array.
Returns
An array of key states. Indexes into this array are obtained by using SDL_Scancode values.

Example:

const Uint8 *state = SDL_GetKeyboardState(NULL);
if ( state[SDL_SCANCODE_RETURN] ) {
printf("<RETURN> is pressed.\n");
}

Definition at line 837 of file SDL_keyboard.c.

References SDL_Keyboard::keystate, SDL_keyboard, and SDL_NUM_SCANCODES.

{
SDL_Keyboard *keyboard = &SDL_keyboard;
if (numkeys != (int *) 0) {
*numkeys = SDL_NUM_SCANCODES;
}
return keyboard->keystate;
}
SDL_Keycode SDL_GetKeyFromName ( const char *  name)

Get a key code from a human-readable name.

Returns
key code, or SDLK_UNKNOWN if the name wasn't recognized
See Also
SDL_Keycode

Definition at line 982 of file SDL_keyboard.c.

References i, NULL, SDL_default_keymap, SDL_GetScancodeFromName, SDL_strlen, and SDLK_UNKNOWN.

{
SDL_Keycode key;
/* Check input */
if (name == NULL) {
return SDLK_UNKNOWN;
}
/* If it's a single UTF-8 character, then that's the keycode itself */
key = *(const unsigned char *)name;
if (key >= 0xF0) {
if (SDL_strlen(name) == 4) {
int i = 0;
key = (Uint16)(name[i]&0x07) << 18;
key |= (Uint16)(name[++i]&0x3F) << 12;
key |= (Uint16)(name[++i]&0x3F) << 6;
key |= (Uint16)(name[++i]&0x3F);
return key;
}
return SDLK_UNKNOWN;
} else if (key >= 0xE0) {
if (SDL_strlen(name) == 3) {
int i = 0;
key = (Uint16)(name[i]&0x0F) << 12;
key |= (Uint16)(name[++i]&0x3F) << 6;
key |= (Uint16)(name[++i]&0x3F);
return key;
}
return SDLK_UNKNOWN;
} else if (key >= 0xC0) {
if (SDL_strlen(name) == 2) {
int i = 0;
key = (Uint16)(name[i]&0x1F) << 6;
key |= (Uint16)(name[++i]&0x3F);
return key;
}
return SDLK_UNKNOWN;
} else {
if (SDL_strlen(name) == 1) {
if (key >= 'A' && key <= 'Z') {
key += 32;
}
return key;
}
/* Get the scancode for this name, and the associated keycode */
return SDL_default_keymap[SDL_GetScancodeFromName(name)];
}
}
SDL_Keycode SDL_GetKeyFromScancode ( SDL_Scancode  scancode)

Get the key code corresponding to the given scancode according to the current keyboard layout.

See SDL_Keycode for details.

See Also
SDL_GetKeyName()

Definition at line 877 of file SDL_keyboard.c.

References SDL_Keyboard::keymap, SDL_InvalidParamError, SDL_keyboard, SDL_NUM_SCANCODES, and SDL_SCANCODE_UNKNOWN.

{
SDL_Keyboard *keyboard = &SDL_keyboard;
if (((int)scancode) < ((int)SDL_SCANCODE_UNKNOWN) || scancode >= SDL_NUM_SCANCODES) {
SDL_InvalidParamError("scancode");
return 0;
}
return keyboard->keymap[scancode];
}
const char* SDL_GetKeyName ( SDL_Keycode  key)

Get a human-readable name for a key.

Returns
A pointer to a UTF-8 string that stays valid at least until the next call to this function. If you need it around any longer, you must copy it. If the key doesn't have a name, this function returns an empty string ("").
See Also
SDL_Keycode

Definition at line 943 of file SDL_keyboard.c.

References SDL_GetScancodeName, SDL_SCANCODE_BACKSPACE, SDL_SCANCODE_DELETE, SDL_SCANCODE_ESCAPE, SDL_SCANCODE_RETURN, SDL_SCANCODE_SPACE, SDL_SCANCODE_TAB, SDL_UCS4ToUTF8(), SDLK_BACKSPACE, SDLK_DELETE, SDLK_ESCAPE, SDLK_RETURN, SDLK_SCANCODE_MASK, SDLK_SPACE, and SDLK_TAB.

{
static char name[8];
char *end;
if (key & SDLK_SCANCODE_MASK) {
return
SDL_GetScancodeName((SDL_Scancode) (key & ~SDLK_SCANCODE_MASK));
}
switch (key) {
case SDLK_RETURN:
return SDL_GetScancodeName(SDL_SCANCODE_RETURN);
case SDLK_ESCAPE:
return SDL_GetScancodeName(SDL_SCANCODE_ESCAPE);
case SDLK_BACKSPACE:
return SDL_GetScancodeName(SDL_SCANCODE_BACKSPACE);
case SDLK_TAB:
return SDL_GetScancodeName(SDL_SCANCODE_TAB);
case SDLK_SPACE:
return SDL_GetScancodeName(SDL_SCANCODE_SPACE);
case SDLK_DELETE:
return SDL_GetScancodeName(SDL_SCANCODE_DELETE);
default:
/* Unaccented letter keys on latin keyboards are normally
labeled in upper case (and probably on others like Greek or
Cyrillic too, so if you happen to know for sure, please
adapt this). */
if (key >= 'a' && key <= 'z') {
key -= 32;
}
end = SDL_UCS4ToUTF8((Uint32) key, name);
*end = '\0';
return name;
}
}
SDL_Keymod SDL_GetModState ( void  )

Get the current key modifier state for the keyboard.

Definition at line 848 of file SDL_keyboard.c.

References SDL_Keyboard::modstate, and SDL_keyboard.

{
SDL_Keyboard *keyboard = &SDL_keyboard;
return (SDL_Keymod) keyboard->modstate;
}
SDL_Scancode SDL_GetScancodeFromKey ( SDL_Keycode  key)

Get the scancode corresponding to the given key code according to the current keyboard layout.

See SDL_Scancode for details.

See Also
SDL_GetScancodeName()

Definition at line 890 of file SDL_keyboard.c.

References SDL_Keyboard::keymap, SDL_keyboard, SDL_NUM_SCANCODES, and SDL_SCANCODE_UNKNOWN.

{
SDL_Keyboard *keyboard = &SDL_keyboard;
SDL_Scancode scancode;
for (scancode = SDL_SCANCODE_UNKNOWN; scancode < SDL_NUM_SCANCODES;
++scancode) {
if (keyboard->keymap[scancode] == key) {
return scancode;
}
}
return SDL_SCANCODE_UNKNOWN;
}
SDL_Scancode SDL_GetScancodeFromName ( const char *  name)

Get a scancode from a human-readable name.

Returns
scancode, or SDL_SCANCODE_UNKNOWN if the name wasn't recognized
See Also
SDL_Scancode

Definition at line 920 of file SDL_keyboard.c.

References i, SDL_arraysize, SDL_InvalidParamError, SDL_scancode_names, SDL_SCANCODE_UNKNOWN, and SDL_strcasecmp.

{
int i;
if (!name || !*name) {
SDL_InvalidParamError("name");
return SDL_SCANCODE_UNKNOWN;
}
for (i = 0; i < SDL_arraysize(SDL_scancode_names); ++i) {
if (!SDL_scancode_names[i]) {
continue;
}
if (SDL_strcasecmp(name, SDL_scancode_names[i]) == 0) {
return (SDL_Scancode)i;
}
}
SDL_InvalidParamError("name");
return SDL_SCANCODE_UNKNOWN;
}
const char* SDL_GetScancodeName ( SDL_Scancode  scancode)

Get a human-readable name for a scancode.

Returns
A pointer to the name for the scancode. If the scancode doesn't have a name, this function returns an empty string ("").
See Also
SDL_Scancode

Definition at line 905 of file SDL_keyboard.c.

References SDL_InvalidParamError, SDL_NUM_SCANCODES, SDL_scancode_names, and SDL_SCANCODE_UNKNOWN.

{
const char *name;
if (((int)scancode) < ((int)SDL_SCANCODE_UNKNOWN) || scancode >= SDL_NUM_SCANCODES) {
SDL_InvalidParamError("scancode");
return "";
}
name = SDL_scancode_names[scancode];
if (name)
return name;
else
return "";
}
int SDL_KeyboardInit ( void  )

Definition at line 562 of file SDL_keyboard.c.

References SDL_Keyboard::keymap, SDL_default_keymap, SDL_keyboard, and SDL_memcpy.

Referenced by SDL_VideoInit().

{
SDL_Keyboard *keyboard = &SDL_keyboard;
/* Set the default keymap */
SDL_memcpy(keyboard->keymap, SDL_default_keymap, sizeof(SDL_default_keymap));
return (0);
}
void SDL_KeyboardQuit ( void  )

Definition at line 832 of file SDL_keyboard.c.

Referenced by SDL_VideoQuit().

{
}
void SDL_ResetKeyboard ( void  )

Definition at line 572 of file SDL_keyboard.c.

References SDL_Keyboard::keystate, SDL_keyboard, SDL_NUM_SCANCODES, SDL_PRESSED, SDL_RELEASED, and SDL_SendKeyboardKey().

Referenced by SDL_SetKeyboardFocus(), and SDL_ShowMessageBox().

{
SDL_Keyboard *keyboard = &SDL_keyboard;
SDL_Scancode scancode;
#ifdef DEBUG_KEYBOARD
printf("Resetting keyboard\n");
#endif
for (scancode = (SDL_Scancode) 0; scancode < SDL_NUM_SCANCODES; ++scancode) {
if (keyboard->keystate[scancode] == SDL_PRESSED) {
SDL_SendKeyboardKey(SDL_RELEASED, scancode);
}
}
}
int SDL_SendEditingText ( const char *  text,
int  start,
int  length 
)

Definition at line 812 of file SDL_keyboard.c.

References SDL_Event::edit, SDL_Keyboard::focus, SDL_Window::id, SDL_arraysize, SDL_ENABLE, SDL_GetEventState, SDL_keyboard, SDL_PushEvent, SDL_TEXTEDITING, SDL_utf8strlcpy, and SDL_TextEditingEvent::text.

{
SDL_Keyboard *keyboard = &SDL_keyboard;
int posted;
/* Post the event, if desired */
posted = 0;
if (SDL_GetEventState(SDL_TEXTEDITING) == SDL_ENABLE) {
SDL_Event event;
event.edit.type = SDL_TEXTEDITING;
event.edit.windowID = keyboard->focus ? keyboard->focus->id : 0;
event.edit.start = start;
event.edit.length = length;
SDL_utf8strlcpy(event.edit.text, text, SDL_arraysize(event.edit.text));
posted = (SDL_PushEvent(&event) > 0);
}
return (posted);
}
int SDL_SendKeyboardKey ( Uint8  state,
SDL_Scancode  scancode 
)

Definition at line 679 of file SDL_keyboard.c.

References SDL_Keyboard::focus, SDL_Window::id, SDL_Keyboard::keymap, SDL_Keyboard::keystate, KMOD_CAPS, KMOD_LALT, KMOD_LCTRL, KMOD_LGUI, KMOD_LSHIFT, KMOD_MODE, KMOD_NONE, KMOD_NUM, KMOD_RALT, KMOD_RCTRL, KMOD_RGUI, KMOD_RSHIFT, SDL_Keyboard::modstate, SDL_ENABLE, SDL_GetEventState, SDL_GetScancodeName, SDL_keyboard, SDL_KEYDOWN, SDL_KEYUP, SDL_PRESSED, SDL_PushEvent, SDL_RELEASED, SDLK_CAPSLOCK, SDLK_LALT, SDLK_LCTRL, SDLK_LGUI, SDLK_LSHIFT, SDLK_MODE, SDLK_NUMLOCKCLEAR, SDLK_RALT, SDLK_RCTRL, SDLK_RGUI, SDLK_RSHIFT, and state.

Referenced by SDL_BApp::_HandleKey(), handleKeyboardEvent(), SDL_ResetKeyboard(), and WINRT_OnBackButtonPressed().

{
SDL_Keyboard *keyboard = &SDL_keyboard;
int posted;
SDL_Keymod modifier;
SDL_Keycode keycode;
Uint32 type;
Uint8 repeat;
if (!scancode) {
return 0;
}
#ifdef DEBUG_KEYBOARD
printf("The '%s' key has been %s\n", SDL_GetScancodeName(scancode),
state == SDL_PRESSED ? "pressed" : "released");
#endif
/* Figure out what type of event this is */
switch (state) {
case SDL_PRESSED:
type = SDL_KEYDOWN;
break;
case SDL_RELEASED:
type = SDL_KEYUP;
break;
default:
/* Invalid state -- bail */
return 0;
}
/* Drop events that don't change state */
repeat = (state && keyboard->keystate[scancode]);
if (keyboard->keystate[scancode] == state && !repeat) {
#if 0
printf("Keyboard event didn't change state - dropped!\n");
#endif
return 0;
}
/* Update internal keyboard state */
keyboard->keystate[scancode] = state;
keycode = keyboard->keymap[scancode];
/* Update modifiers state if applicable */
switch (keycode) {
case SDLK_LCTRL:
modifier = KMOD_LCTRL;
break;
case SDLK_RCTRL:
modifier = KMOD_RCTRL;
break;
case SDLK_LSHIFT:
modifier = KMOD_LSHIFT;
break;
case SDLK_RSHIFT:
modifier = KMOD_RSHIFT;
break;
case SDLK_LALT:
modifier = KMOD_LALT;
break;
case SDLK_RALT:
modifier = KMOD_RALT;
break;
case SDLK_LGUI:
modifier = KMOD_LGUI;
break;
case SDLK_RGUI:
modifier = KMOD_RGUI;
break;
case SDLK_MODE:
modifier = KMOD_MODE;
break;
default:
modifier = KMOD_NONE;
break;
}
if (SDL_KEYDOWN == type) {
switch (keycode) {
case SDLK_NUMLOCKCLEAR:
keyboard->modstate ^= KMOD_NUM;
break;
case SDLK_CAPSLOCK:
keyboard->modstate ^= KMOD_CAPS;
break;
default:
keyboard->modstate |= modifier;
break;
}
} else {
keyboard->modstate &= ~modifier;
}
/* Post the event, if desired */
posted = 0;
if (SDL_GetEventState(type) == SDL_ENABLE) {
SDL_Event event;
event.key.type = type;
event.key.state = state;
event.key.repeat = repeat;
event.key.keysym.scancode = scancode;
event.key.keysym.sym = keycode;
event.key.keysym.mod = keyboard->modstate;
event.key.windowID = keyboard->focus ? keyboard->focus->id : 0;
posted = (SDL_PushEvent(&event) > 0);
}
return (posted);
}
int SDL_SendKeyboardText ( const char *  text)

Definition at line 789 of file SDL_keyboard.c.

References SDL_Keyboard::focus, SDL_Window::id, SDL_arraysize, SDL_ENABLE, SDL_GetEventState, SDL_keyboard, SDL_PushEvent, SDL_TEXTINPUT, SDL_utf8strlcpy, SDL_TextInputEvent::text, and SDL_Event::text.

Referenced by SDL_BApp::_HandleKey().

{
SDL_Keyboard *keyboard = &SDL_keyboard;
int posted;
/* Don't post text events for unprintable characters */
if ((unsigned char)*text < ' ' || *text == 127) {
return 0;
}
/* Post the event, if desired */
posted = 0;
if (SDL_GetEventState(SDL_TEXTINPUT) == SDL_ENABLE) {
SDL_Event event;
event.text.type = SDL_TEXTINPUT;
event.text.windowID = keyboard->focus ? keyboard->focus->id : 0;
SDL_utf8strlcpy(event.text.text, text, SDL_arraysize(event.text.text));
posted = (SDL_PushEvent(&event) > 0);
}
return (posted);
}
void SDL_SetKeyboardFocus ( SDL_Window *  window)

Definition at line 630 of file SDL_keyboard.c.

References SDL_Window::flags, SDL_Keyboard::focus, SDL_assert, SDL_CaptureMouse, SDL_EventState, SDL_FALSE, SDL_GetVideoDevice(), SDL_keyboard, SDL_QUERY, SDL_ResetKeyboard(), SDL_SendWindowEvent(), SDL_TEXTINPUT, SDL_WINDOW_MOUSE_CAPTURE, SDL_WINDOWEVENT_FOCUS_GAINED, SDL_WINDOWEVENT_FOCUS_LOST, SDL_VideoDevice::StartTextInput, and SDL_VideoDevice::StopTextInput.

Referenced by SDL_BApp::_HandleKeyboardFocus(), and SDL_DestroyWindow().

{
SDL_Keyboard *keyboard = &SDL_keyboard;
if (keyboard->focus && !window) {
/* We won't get anymore keyboard messages, so reset keyboard state */
SDL_ResetKeyboard();
}
/* See if the current window has lost focus */
if (keyboard->focus && keyboard->focus != window) {
/* new window shouldn't think it has mouse captured. */
SDL_assert(!window || !(window->flags & SDL_WINDOW_MOUSE_CAPTURE));
/* old window must lose an existing mouse capture. */
if (keyboard->focus->flags & SDL_WINDOW_MOUSE_CAPTURE) {
SDL_CaptureMouse(SDL_FALSE); /* drop the capture. */
SDL_assert(!(keyboard->focus->flags & SDL_WINDOW_MOUSE_CAPTURE));
}
SDL_SendWindowEvent(keyboard->focus, SDL_WINDOWEVENT_FOCUS_LOST,
0, 0);
/* Ensures IME compositions are committed */
if (SDL_EventState(SDL_TEXTINPUT, SDL_QUERY)) {
SDL_VideoDevice *video = SDL_GetVideoDevice();
if (video && video->StopTextInput) {
video->StopTextInput(video);
}
}
}
keyboard->focus = window;
if (keyboard->focus) {
SDL_SendWindowEvent(keyboard->focus, SDL_WINDOWEVENT_FOCUS_GAINED,
0, 0);
if (SDL_EventState(SDL_TEXTINPUT, SDL_QUERY)) {
SDL_VideoDevice *video = SDL_GetVideoDevice();
if (video && video->StartTextInput) {
video->StartTextInput(video);
}
}
}
}
void SDL_SetKeymap ( int  start,
SDL_Keycode *  keys,
int  length 
)

Definition at line 594 of file SDL_keyboard.c.

References SDL_Keyboard::keymap, SDL_keyboard, SDL_memcpy, SDL_NUM_SCANCODES, SDL_SCANCODE_0, SDL_SCANCODE_1, SDL_SCANCODE_9, SDLK_0, and SDLK_1.

{
SDL_Keyboard *keyboard = &SDL_keyboard;
SDL_Scancode scancode;
if (start < 0 || start + length > SDL_NUM_SCANCODES) {
return;
}
SDL_memcpy(&keyboard->keymap[start], keys, sizeof(*keys) * length);
/* The number key scancodes always map to the number key keycodes.
* On AZERTY layouts these technically are symbols, but users (and games)
* always think of them and view them in UI as number keys.
*/
keyboard->keymap[SDL_SCANCODE_0] = SDLK_0;
for (scancode = SDL_SCANCODE_1; scancode <= SDL_SCANCODE_9; ++scancode) {
keyboard->keymap[scancode] = SDLK_1 + (scancode - SDL_SCANCODE_1);
}
}
void SDL_SetModState ( SDL_Keymod  modstate)

Set the current key modifier state for the keyboard.

Note
This does not change the keyboard state, only the key modifier flags.

Definition at line 856 of file SDL_keyboard.c.

References SDL_Keyboard::modstate, and SDL_keyboard.

{
SDL_Keyboard *keyboard = &SDL_keyboard;
keyboard->modstate = modstate;
}
void SDL_SetScancodeName ( SDL_Scancode  scancode,
const char *  name 
)

Definition at line 616 of file SDL_keyboard.c.

References SDL_scancode_names.

{
SDL_scancode_names[scancode] = name;
}
void SDL_ToggleModState ( const SDL_Keymod  modstate,
const SDL_bool  toggle 
)

Definition at line 865 of file SDL_keyboard.c.

References SDL_Keyboard::modstate, and SDL_keyboard.

{
SDL_Keyboard *keyboard = &SDL_keyboard;
if (toggle) {
keyboard->modstate |= modstate;
} else {
keyboard->modstate &= ~modstate;
}
}
char* SDL_UCS4ToUTF8 ( Uint32  ch,
char *  dst 
)

Definition at line 520 of file SDL_keyboard.c.

Referenced by SDL_GetKeyName().

{
Uint8 *p = (Uint8 *) dst;
if (ch <= 0x7F) {
*p = (Uint8) ch;
++dst;
} else if (ch <= 0x7FF) {
p[0] = 0xC0 | (Uint8) ((ch >> 6) & 0x1F);
p[1] = 0x80 | (Uint8) (ch & 0x3F);
dst += 2;
} else if (ch <= 0xFFFF) {
p[0] = 0xE0 | (Uint8) ((ch >> 12) & 0x0F);
p[1] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[2] = 0x80 | (Uint8) (ch & 0x3F);
dst += 3;
} else if (ch <= 0x1FFFFF) {
p[0] = 0xF0 | (Uint8) ((ch >> 18) & 0x07);
p[1] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
p[2] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[3] = 0x80 | (Uint8) (ch & 0x3F);
dst += 4;
} else if (ch <= 0x3FFFFFF) {
p[0] = 0xF8 | (Uint8) ((ch >> 24) & 0x03);
p[1] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
p[2] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
p[3] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[4] = 0x80 | (Uint8) (ch & 0x3F);
dst += 5;
} else {
p[0] = 0xFC | (Uint8) ((ch >> 30) & 0x01);
p[1] = 0x80 | (Uint8) ((ch >> 24) & 0x3F);
p[2] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
p[3] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
p[4] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[5] = 0x80 | (Uint8) (ch & 0x3F);
dst += 6;
}
return dst;
}

Variable Documentation

const SDL_Keycode SDL_default_keymap[SDL_NUM_SCANCODES]
static

Definition at line 49 of file SDL_keyboard.c.

Referenced by SDL_GetDefaultKeymap(), SDL_GetKeyFromName(), and SDL_KeyboardInit().

SDL_Keyboard SDL_keyboard
static

Definition at line 47 of file SDL_keyboard.c.

Referenced by SDL_GetKeyboardFocus(), SDL_GetKeyboardState(), SDL_GetKeyFromScancode(), SDL_GetModState(), SDL_GetScancodeFromKey(), SDL_KeyboardInit(), SDL_ResetKeyboard(), SDL_SendEditingText(), SDL_SendKeyboardKey(), SDL_SendKeyboardText(), SDL_SetKeyboardFocus(), SDL_SetKeymap(), SDL_SetModState(), and SDL_ToggleModState().

const char* SDL_scancode_names[SDL_NUM_SCANCODES]
static

Definition at line 282 of file SDL_keyboard.c.

Referenced by SDL_GetScancodeFromName(), SDL_GetScancodeName(), and SDL_SetScancodeName().