libctru  v2.4.1
Data Structures | Macros | Typedefs | Enumerations | Functions
swkbd.h File Reference

Software keyboard applet. More...

#include <3ds/types.h>

Go to the source code of this file.

Data Structures

struct  SwkbdDictWord
 Keyboard dictionary word for predictive input. More...
 
struct  SwkbdStatusData
 Keyboard status data. More...
 
struct  SwkbdLearningData
 Keyboard predictive input learning data. More...
 
struct  SwkbdExtra
 Internal libctru book-keeping structure for software keyboards. More...
 
struct  SwkbdState
 Software keyboard parameter structure, it shouldn't be modified directly. More...
 

Macros

#define SWKBD_MAX_WORD_LEN   40
 Maximum dictionary word length, in UTF-16 code units.
 
#define SWKBD_MAX_BUTTON_TEXT_LEN   16
 Maximum button text length, in UTF-16 code units.
 
#define SWKBD_MAX_HINT_TEXT_LEN   64
 Maximum hint text length, in UTF-16 code units.
 
#define SWKBD_MAX_CALLBACK_MSG_LEN   256
 Maximum filter callback error message length, in UTF-16 code units.
 

Typedefs

typedef SwkbdCallbackResult(* SwkbdCallbackFn) (void *user, const char **ppMessage, const char *text, size_t textlen)
 Keyboard filter callback function.
 

Enumerations

enum  SwkbdType {
  SWKBD_TYPE_NORMAL = 0 ,
  SWKBD_TYPE_QWERTY ,
  SWKBD_TYPE_NUMPAD ,
  SWKBD_TYPE_WESTERN
}
 Keyboard types. More...
 
enum  SwkbdValidInput {
  SWKBD_ANYTHING = 0 ,
  SWKBD_NOTEMPTY ,
  SWKBD_NOTEMPTY_NOTBLANK ,
  SWKBD_NOTBLANK_NOTEMPTY = SWKBD_NOTEMPTY_NOTBLANK ,
  SWKBD_NOTBLANK ,
  SWKBD_FIXEDLEN
}
 Accepted input types. More...
 
enum  SwkbdButton {
  SWKBD_BUTTON_LEFT = 0 ,
  SWKBD_BUTTON_MIDDLE ,
  SWKBD_BUTTON_RIGHT ,
  SWKBD_BUTTON_CONFIRM = SWKBD_BUTTON_RIGHT ,
  SWKBD_BUTTON_NONE
}
 Keyboard dialog buttons. More...
 
enum  SwkbdPasswordMode {
  SWKBD_PASSWORD_NONE = 0 ,
  SWKBD_PASSWORD_HIDE ,
  SWKBD_PASSWORD_HIDE_DELAY
}
 Keyboard password modes. More...
 
enum  {
  SWKBD_FILTER_DIGITS = BIT(0) ,
  SWKBD_FILTER_AT = BIT(1) ,
  SWKBD_FILTER_PERCENT = BIT(2) ,
  SWKBD_FILTER_BACKSLASH = BIT(3) ,
  SWKBD_FILTER_PROFANITY = BIT(4) ,
  SWKBD_FILTER_CALLBACK = BIT(5)
}
 Keyboard input filtering flags. More...
 
enum  {
  SWKBD_PARENTAL = BIT(0) ,
  SWKBD_DARKEN_TOP_SCREEN = BIT(1) ,
  SWKBD_PREDICTIVE_INPUT = BIT(2) ,
  SWKBD_MULTILINE = BIT(3) ,
  SWKBD_FIXED_WIDTH = BIT(4) ,
  SWKBD_ALLOW_HOME = BIT(5) ,
  SWKBD_ALLOW_RESET = BIT(6) ,
  SWKBD_ALLOW_POWER = BIT(7) ,
  SWKBD_DEFAULT_QWERTY = BIT(9)
}
 Keyboard features. More...
 
enum  SwkbdCallbackResult {
  SWKBD_CALLBACK_OK = 0 ,
  SWKBD_CALLBACK_CLOSE ,
  SWKBD_CALLBACK_CONTINUE
}
 Keyboard filter callback return values. More...
 
enum  SwkbdResult {
  SWKBD_NONE = -1 ,
  SWKBD_INVALID_INPUT = -2 ,
  SWKBD_OUTOFMEM = -3 ,
  SWKBD_D0_CLICK = 0 ,
  SWKBD_D1_CLICK0 ,
  SWKBD_D1_CLICK1 ,
  SWKBD_D2_CLICK0 ,
  SWKBD_D2_CLICK1 ,
  SWKBD_D2_CLICK2 ,
  SWKBD_HOMEPRESSED = 10 ,
  SWKBD_RESETPRESSED ,
  SWKBD_POWERPRESSED ,
  SWKBD_PARENTAL_OK = 20 ,
  SWKBD_PARENTAL_FAIL ,
  SWKBD_BANNED_INPUT = 30
}
 Keyboard return values. More...
 

Functions

void swkbdInit (SwkbdState *swkbd, SwkbdType type, int numButtons, int maxTextLength)
 Initializes software keyboard status. More...
 
static void swkbdSetPasswordMode (SwkbdState *swkbd, SwkbdPasswordMode mode)
 Configures password mode in a software keyboard. More...
 
static void swkbdSetValidation (SwkbdState *swkbd, SwkbdValidInput validInput, u32 filterFlags, int maxDigits)
 Configures input validation in a software keyboard. More...
 
static void swkbdSetNumpadKeys (SwkbdState *swkbd, int left, int right)
 Configures what characters will the two bottom keys in a numpad produce. More...
 
void swkbdSetFeatures (SwkbdState *swkbd, u32 features)
 Specifies which special features are enabled in a software keyboard. More...
 
void swkbdSetHintText (SwkbdState *swkbd, const char *text)
 Sets the hint text of a software keyboard (that is, the help text that is displayed when the textbox is empty). More...
 
void swkbdSetButton (SwkbdState *swkbd, SwkbdButton button, const char *text, bool submit)
 Configures a dialog button in a software keyboard. More...
 
void swkbdSetInitialText (SwkbdState *swkbd, const char *text)
 Sets the initial text that a software keyboard will display on launch. More...
 
void swkbdSetDictWord (SwkbdDictWord *word, const char *reading, const char *text)
 Configures a word in a predictive dictionary for use with a software keyboard. More...
 
void swkbdSetDictionary (SwkbdState *swkbd, const SwkbdDictWord *dict, int wordCount)
 Sets the custom word dictionary to be used with the predictive input system of a software keyboard. More...
 
void swkbdSetStatusData (SwkbdState *swkbd, SwkbdStatusData *data, bool in, bool out)
 Configures software keyboard internal status management. More...
 
void swkbdSetLearningData (SwkbdState *swkbd, SwkbdLearningData *data, bool in, bool out)
 Configures software keyboard predictive input learning data management. More...
 
void swkbdSetFilterCallback (SwkbdState *swkbd, SwkbdCallbackFn callback, void *user)
 Configures a custom function to be used to check the validity of input when it is submitted in a software keyboard. More...
 
SwkbdButton swkbdInputText (SwkbdState *swkbd, char *buf, size_t bufsize)
 Launches a software keyboard in order to input text. More...
 
static SwkbdResult swkbdGetResult (SwkbdState *swkbd)
 Retrieves the result condition of a software keyboard after it has been used. More...
 

Detailed Description

Software keyboard applet.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Keyboard input filtering flags.

Enumerator
SWKBD_FILTER_DIGITS 

Disallow the use of more than a certain number of digits (0 or more)

SWKBD_FILTER_AT 

Disallow the use of the @ sign.

SWKBD_FILTER_PERCENT 

Disallow the use of the % sign.

SWKBD_FILTER_BACKSLASH 

Disallow the use of the \ sign.

SWKBD_FILTER_PROFANITY 

Disallow profanity using Nintendo's profanity filter.

SWKBD_FILTER_CALLBACK 

Use a callback in order to check the input.

◆ anonymous enum

anonymous enum

Keyboard features.

Enumerator
SWKBD_PARENTAL 

Parental PIN mode.

SWKBD_DARKEN_TOP_SCREEN 

Darken the top screen when the keyboard is shown.

SWKBD_PREDICTIVE_INPUT 

Enable predictive input (necessary for Kanji input in JPN systems).

SWKBD_MULTILINE 

Enable multiline input.

SWKBD_FIXED_WIDTH 

Enable fixed-width mode.

SWKBD_ALLOW_HOME 

Allow the usage of the HOME button.

SWKBD_ALLOW_RESET 

Allow the usage of a software-reset combination.

SWKBD_ALLOW_POWER 

Allow the usage of the POWER button.

SWKBD_DEFAULT_QWERTY 

Default to the QWERTY page when the keyboard is shown.

◆ SwkbdButton

Keyboard dialog buttons.

Enumerator
SWKBD_BUTTON_LEFT 

Left button (usually Cancel)

SWKBD_BUTTON_MIDDLE 

Middle button (usually I Forgot)

SWKBD_BUTTON_RIGHT 

Right button (usually OK)

SWKBD_BUTTON_NONE 

No button (returned by swkbdInputText in special cases)

◆ SwkbdCallbackResult

Keyboard filter callback return values.

Enumerator
SWKBD_CALLBACK_OK 

Specifies that the input is valid.

SWKBD_CALLBACK_CLOSE 

Displays an error message, then closes the keyboard.

SWKBD_CALLBACK_CONTINUE 

Displays an error message and continues displaying the keyboard.

◆ SwkbdPasswordMode

Keyboard password modes.

Enumerator
SWKBD_PASSWORD_NONE 

Characters are not concealed.

SWKBD_PASSWORD_HIDE 

Characters are concealed immediately.

SWKBD_PASSWORD_HIDE_DELAY 

Characters are concealed a second after they've been typed.

◆ SwkbdResult

Keyboard return values.

Enumerator
SWKBD_NONE 

Dummy/unused.

SWKBD_INVALID_INPUT 

Invalid parameters to swkbd.

SWKBD_OUTOFMEM 

Out of memory.

SWKBD_D0_CLICK 

The button was clicked in 1-button dialogs.

SWKBD_D1_CLICK0 

The left button was clicked in 2-button dialogs.

SWKBD_D1_CLICK1 

The right button was clicked in 2-button dialogs.

SWKBD_D2_CLICK0 

The left button was clicked in 3-button dialogs.

SWKBD_D2_CLICK1 

The middle button was clicked in 3-button dialogs.

SWKBD_D2_CLICK2 

The right button was clicked in 3-button dialogs.

SWKBD_HOMEPRESSED 

The HOME button was pressed.

SWKBD_RESETPRESSED 

The soft-reset key combination was pressed.

SWKBD_POWERPRESSED 

The POWER button was pressed.

SWKBD_PARENTAL_OK 

The parental PIN was verified successfully.

SWKBD_PARENTAL_FAIL 

The parental PIN was incorrect.

SWKBD_BANNED_INPUT 

The filter callback returned SWKBD_CALLBACK_CLOSE.

◆ SwkbdType

enum SwkbdType

Keyboard types.

Enumerator
SWKBD_TYPE_NORMAL 

Normal keyboard with several pages (QWERTY/accents/symbol/mobile)

SWKBD_TYPE_QWERTY 

QWERTY keyboard only.

SWKBD_TYPE_NUMPAD 

Number pad.

SWKBD_TYPE_WESTERN 

On JPN systems, a text keyboard without Japanese input capabilities, otherwise same as SWKBD_TYPE_NORMAL.

◆ SwkbdValidInput

Accepted input types.

Enumerator
SWKBD_ANYTHING 

All inputs are accepted.

SWKBD_NOTEMPTY 

Empty inputs are not accepted.

SWKBD_NOTEMPTY_NOTBLANK 

Empty or blank inputs (consisting solely of whitespace) are not accepted.

SWKBD_NOTBLANK 

Blank inputs (consisting solely of whitespace) are not accepted, but empty inputs are.

SWKBD_FIXEDLEN 

The input must have a fixed length (specified by maxTextLength in swkbdInit).

Function Documentation

◆ swkbdGetResult()

static SwkbdResult swkbdGetResult ( SwkbdState swkbd)
inlinestatic

Retrieves the result condition of a software keyboard after it has been used.

Parameters
swkbdPointer to swkbd state.
Returns
The result value.
Examples
input/software-keyboard/source/main.c.

◆ swkbdInit()

void swkbdInit ( SwkbdState swkbd,
SwkbdType  type,
int  numButtons,
int  maxTextLength 
)

Initializes software keyboard status.

Parameters
swkbdPointer to swkbd state.
typeKeyboard type.
numButtonsNumber of dialog buttons to display (1, 2 or 3).
maxTextLengthMaximum number of UTF-16 code units that input text can have (or -1 to let libctru use a big default).
Examples
input/software-keyboard/source/main.c.

◆ swkbdInputText()

SwkbdButton swkbdInputText ( SwkbdState swkbd,
char *  buf,
size_t  bufsize 
)

Launches a software keyboard in order to input text.

Parameters
swkbdPointer to swkbd state.
bufPointer to output buffer which will hold the inputted text.
bufsizeMaximum number of UTF-8 code units that the buffer can hold (including null terminator).
Returns
The identifier of the dialog button that was pressed, or SWKBD_BUTTON_NONE if a different condition was triggered - in that case use swkbdGetResult to check the condition.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetButton()

void swkbdSetButton ( SwkbdState swkbd,
SwkbdButton  button,
const char *  text,
bool  submit 
)

Configures a dialog button in a software keyboard.

Parameters
swkbdPointer to swkbd state.
buttonSpecifies which button to configure.
textButton text.
submitSpecifies whether pushing the button will submit the text or discard it.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetDictionary()

void swkbdSetDictionary ( SwkbdState swkbd,
const SwkbdDictWord dict,
int  wordCount 
)

Sets the custom word dictionary to be used with the predictive input system of a software keyboard.

Parameters
swkbdPointer to swkbd state.
dictPointer to dictionary words.
wordCountNumber of words in the dictionary.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetDictWord()

void swkbdSetDictWord ( SwkbdDictWord word,
const char *  reading,
const char *  text 
)

Configures a word in a predictive dictionary for use with a software keyboard.

Parameters
wordPointer to dictionary word structure.
readingReading of the word, that is, the sequence of characters that need to be typed to trigger the word in the predictive input system.
textSpelling of the word, that is, the actual characters that will be produced when the user decides to select the word.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetFeatures()

void swkbdSetFeatures ( SwkbdState swkbd,
u32  features 
)

Specifies which special features are enabled in a software keyboard.

Parameters
swkbdPointer to swkbd state.
featuresFeature bitmask.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetFilterCallback()

void swkbdSetFilterCallback ( SwkbdState swkbd,
SwkbdCallbackFn  callback,
void *  user 
)

Configures a custom function to be used to check the validity of input when it is submitted in a software keyboard.

Parameters
swkbdPointer to swkbd state.
callbackFilter callback function.
userCustom data to be passed to the callback function.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetHintText()

void swkbdSetHintText ( SwkbdState swkbd,
const char *  text 
)

Sets the hint text of a software keyboard (that is, the help text that is displayed when the textbox is empty).

Parameters
swkbdPointer to swkbd state.
textHint text.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetInitialText()

void swkbdSetInitialText ( SwkbdState swkbd,
const char *  text 
)

Sets the initial text that a software keyboard will display on launch.

Parameters
swkbdPointer to swkbd state.
textInitial text.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetLearningData()

void swkbdSetLearningData ( SwkbdState swkbd,
SwkbdLearningData data,
bool  in,
bool  out 
)

Configures software keyboard predictive input learning data management.

Parameters
swkbdPointer to swkbd state.
dataPointer to learning data structure (can be in, out or both depending on the other parameters).
inSpecifies whether the data should be read from the structure when the keyboard is launched.
outSpecifies whether the data should be written to the structure when the keyboard is closed.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetNumpadKeys()

static void swkbdSetNumpadKeys ( SwkbdState swkbd,
int  left,
int  right 
)
inlinestatic

Configures what characters will the two bottom keys in a numpad produce.

Parameters
swkbdPointer to swkbd state.
leftUnicode codepoint produced by the leftmost key in the bottom row (0 hides the key).
leftUnicode codepoint produced by the rightmost key in the bottom row (0 hides the key).
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetPasswordMode()

static void swkbdSetPasswordMode ( SwkbdState swkbd,
SwkbdPasswordMode  mode 
)
inlinestatic

Configures password mode in a software keyboard.

Parameters
swkbdPointer to swkbd state.
modePassword mode.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetStatusData()

void swkbdSetStatusData ( SwkbdState swkbd,
SwkbdStatusData data,
bool  in,
bool  out 
)

Configures software keyboard internal status management.

Parameters
swkbdPointer to swkbd state.
dataPointer to internal status structure (can be in, out or both depending on the other parameters).
inSpecifies whether the data should be read from the structure when the keyboard is launched.
outSpecifies whether the data should be written to the structure when the keyboard is closed.
Examples
input/software-keyboard/source/main.c.

◆ swkbdSetValidation()

static void swkbdSetValidation ( SwkbdState swkbd,
SwkbdValidInput  validInput,
u32  filterFlags,
int  maxDigits 
)
inlinestatic

Configures input validation in a software keyboard.

Parameters
swkbdPointer to swkbd state.
validInputSpecifies which inputs are valid.
filterFlagsBitmask specifying which characters are disallowed (filtered).
maxDigitsIn case digits are disallowed, specifies how many digits are allowed at maximum in input strings (0 completely restricts digit input).
Examples
input/software-keyboard/source/main.c.