Provided by: libcanna1g-dev_3.7p3-12_amd64 
NAME
UILib_intro — User interface library intro
DESCRIPTION
User interface libraries are responding to one-chracter or one-key input, return various kinds of
information. They include the unfixed character string, fixed character string, marked segment position,
status display character string, and candidate list character string.
The application program displays the data according to the returned information. It can also control
mode transition by triggering through something other than key pressing (for example, selection through
the mouse).
The user interface library provides jrKanjiString and jrKanjiControl for the input through the TTY. It
also provides XLookupKanjiString and XKanjiControl for the input through the X window.
Use of the user interface library requires the following:
- Through the TTY:
Function jrKanjiString, jrKanjiControl
Header file canna/jrkanji.h
Library libcanna.a, libcanna.so
- Through the X window:
Function XLookupKanjiString, XKanjiControl
Header file canna/kanji.h
Library libXn.a, libXn.so, libcanna.a, libcanna.so
Outline
jrKanjiString Converts ordinary keyboard input (input through the TTY, input with X) into Kanji
strings.
jrKanjiControl Executes the control with jrKanjiString according to the specified parameters.
XLookupKanjiString Converts the keyboard input (key event) into Kanji strings in the X window system.
XKanjiControl Executes the control with XLookupKanjiString according to the specified parameters.
NAME
jrKanjiString — Kana-to-Kanji Conversion for ordinary keyboard input
SYNOPSIS
#include <canna/jrkanji.h>
int jrKanjiString(context_id, ch, buffer_return, bytes_buffer, kanji_status_return)
int context_id;
int ch;
char *buffer_return;
int bytes_buffer;
jrKanjiStatus *kanji_status_return;
DESCRIPTION
jrKanjiString converts ordinary keyboard input (input through the TTY, input with X) into Kanji strings.
jrKanjiString is a convenient routine which returns the character strings to be displayed. To convert
the key input represented in ASCII code, into the Japanese characters, jrKanjiString specifies the input
key code using ch. Romaji-to-Kana or Kana-to-Kanji Conversion is executed in jrKanjiString.
For a function or cursor key, specify a special code (listed in ``FUNCTION KEYS'' below) to
jrKanjiString. Do not specify the sequence caused by the key.
For the context identifier specified in context_id, the value is not used as it is. Instead, a context
that uses the context identifier as the key is created and used. Thus, the application program may
specify any value for the context identifier to be specified for jrKanjiString. It is recommended that
the input port's file descriptor be specified for this identifier. If 0 is specified for the identifier,
the context prepared as the system default will be used by way of exception.
It is recommended that 0 be specified unless particular consideration is given to the context. The
intermediate result to be displayed is returned to the application through kanji_status_return.
Responding to the input, it is necessary to display the intermediate result of Romaji-to-Kana or Kana-to-
Kanji Conversion. The application must display the intermediate result according to the information
returned by kanji_status_return, which is a jrKanjiStatus type structure.
The jrKanjiStatus structure is defined as follows:
typedef struct {
unsigned char *echoStr; /* Character string for local echo */
int length; /* Length of the local echo character string */
int revPos; /* Offset to the reverse display field
within local echo character string */
int revLen; /* Length of the reverse display within
local echo echo character string */
unsigned long info; /* Other information */
unsigned char *mode; /* Mode information */
struct {
unsigned char *line; /* Candidate list character string */
int length; /* Length of candidate list character string */
int revPos; /* Offset to the reverse display field
within candidate list character string */
int revLen; /* Length of reverse display field within
candidate list character string */
} gline; /* Information about the candidate list*/
} jrKanjiStatus;
When Kana-to-Kanji conversion is used during Japanese input, information such as the readings to be
converted need to be echoed (local echo). jrKanjiString does not perform display such as local echo.
Instead, it returns the character strings to be submitted to local echo, to the application by using the
jrKanjiStatus structure.
The EUC character strings to be submitted to local echo include characters already converted into Kana
from Romaji and conversion candidate characters. Until the conversion is fixed, they are returned by the
echoStr member. At this time, the length of local echo character string is returned by the length
member. Also, the starting position and length (bytes) of reverse display area are returned by the
revPos and revLen member, respectively. The buffer for local echo character strings is reserved
automatically by jrKanjiString. It must be used only for reading. No character string must be written
into this buffer.
If no character string is to be submitted to local echo, 0 will be returned by the length member.
The contents to be submitted to local echo may be the same as when jrKanjiString was previously called.
(This occurs, for example, when a control code is pressed and the key is disabled.) In this case, -1
returns to the length member.
Mode changes and existence of information about the candidate list are passed by the info member. If
info member's KanjiModeInfo bit is on, the character string indicating the new mode will return to mode.
If the info member's KanjiGLineInfo bit is on, the gline structure has contained information such as the
candidate list.
The character string for candidate list display returns to the gline structure's line member. The
length, reverse dispaly starting position, and reverse display duration of the candidate list character
string return to the gline structure's line, revPos, and revLen, respectively.
If there is an EUC character string fixed during conversion, it will be stored into buffer buffer_return.
In this case, the length (bytes) of this character string will return. If there is no fixed character
string, the return value will be 0. Using bytes_buffer, specify the size of the buffer that is to
contain the fixed character string (buffer_return). If the fixed character string is longer than
bytes_buffer, only the bytes_buffer substring is stored into buffer_return. In this case, the value
specified in bytes_buffer will be the return value of jrKanjiString.
FUNCTION KEYS
For any function key that issue an Escape sequence, specify one of the following codes as ch instead of
the Escape sequence:
Logical name
Code
Nfer CANNA_KEY_Nfer
Xfer CANNA_KEY_Xfer
Up CANNA_KEY_Up
Left CANNA_KEY_Left
Right CANNA_KEY_Right
Down CANNA_KEY_Down
Insert CANNA_KEY_Insert
Rollup CANNA_KEY_Rollup
Rolldown CANNA_KEY_Rolldown
Home CANNA_KEY_Home
Help CANNA_KEY_Help
S-Nfer CANNA_KEY_Shift_Nfer
S-Xfer CANNA_KEY_Shift_Xfer
S-Up CANNA_KEY_Shift_Up
S-Left CANNA_KEY_Shift_Left
S-Right CANNA_KEY_Shift_Right
S-Down CANNA_KEY_Shift_Down
C-Nfer CANNA_KEY_Control_Nfer
C-Xfer CANNA_KEY_Control_Xfer
C-Up CANNA_KEY_Control_Up
C-Left CANNA_KEY_Control_Left
C-Right CANNA_KEY_Control_Right
C-Down CANNA_KEY_Control_Down
F1 CANNA_KEY_F1
PF1 CANNA_KEY_PF1
SEE ALSO
jrKanjiControl(3)
RETURN VALUE
If an error occurs during input processing, -1 will return as the return value of this function. In this
case, the error message will be stored in external variable (char*)jrKanjiError.
If a call to this function causes a character string to be fixed, the length (bytes) of this character
string will return. Otherwise, 0 will return.
NAME
jrKanjiControl — Control the jrKanjiControl modes and processes
SYNOPSIS
#include <canna/jrkanji.h>
int jrKanjiControl(context_id, request, arg)
int context_id;
int request;
char *arg;
DESCRIPTION
jrKanjiControl executes process request for conversion context context_id. Some processes are
accompanied by the argument, specified in arg.
jrKanjiControl controls the following 13 functions:
request name Function
KC_INITIALIZE Initializes Kana-to-Kanji conversion.
KC_CHANGEMODE Changes the input mode.
KC_SETWIDTH Specifies the width used to display the candidate
KC_FINALIZE Finalizes (terminates) Kana-to-Kanji conversion processing.
KC_SETUNDEFKEYFUNCTION
Sets a function for an undefined key.
KC_SETMODEINFOSTYLE
Specifies whether mode information is represented in numeric form.
KC_KAKUTEI Fixes the currently entered character string.
KC_KILL Deletes the currently entered character string.
KC_QUERYMODE Queries about the current mode.
KC_SETSERVERNAME Specifies the server to be connected.
KC_SETINITFILENAME
Specifies the customize file.
KC_CLOSEUICONTEXT Closes the context.
KC_QUERYMAXMODESTR
Obtains the maximum length of mode display character string.
Basically, jrKanjiControl is enabled only for something specified in the context. This rule does not
apply to the initialize and terminate processes.
The unfixed character string condition may change, or details of the mode may vary, depending on the
jrKanjiControl operation. If this may occur, pass the pointer to a structure that can contain the varied
information in the arg field. This structure is defined as follows:
typedef struct {
int val; /* The length of the character string in the
buffer returns. */
unsigned char *buffer; /* Specifies the buffer used to store the
fixed character string. */
int bytes_buffer; /* Specifies the size of the above buffer. */
jrKanjiStatus *ks; /* Pointer to the structure that contains
information about the unfixed character string. */
} jrKanjiStatusWithValue;
The jrKanjiControl functions can be executed in the following ways:
(1) KC_INITIALIZE — Initializes Kana-to-Kanji conversion.
KC_INITIALIZE initializes Kana-to-Kanji conversion by specifying KC_INITIALIZE in the request
field. Specify one of the following in arg: (1) the pointer to the char ** type variable used to
store the warning message and (2) NULL.
The initialize process is basically executed automatically when jrKanjiString(3) is first called.
This is skipped by using jrKanjiControl for initialization.
For example, when control about Kana-to-Kanji conversion is executed using jrKanjiControl before
use of jrKanjiString(3), Kana-to-Kanji conversion must be initialized.
When the process terminates normally, 0 returns as the jrKanjiControl return value. When it
terminates abnormally, -1 returns.
When KC_INITIALIZE is executed, a warning, rather than an error, may occur. When it occurs, the
pointer to the warning character string array is stored in and returns to the variable specified in
arg. If no warning occurs, NULL is stored and returns.
(Example)
int res; /* Prepare for error return */
char **warning;
.....
res = jrKanjiControl(0, KC_INITIALIZE, &warning);
if (warning) {
char **p;
for (p = warning ; *p ; p++) {
fprintf(stderr, "%s0, *p);
}
}
In the library, malloc is done for the warning message returning to the third argument. This
message is freed when KC_INITIALIZE or KC_FINALIZE is executed next. The application programmer
must not free it. The maximum number of warning messages is restricted to 64 now. The subsequent
ones are discarded.
The following warnings may be included in a message:
- All customize files including those of the system are unavailable.
- The customize file contains a syntax error.
- The Romaji-to-Kana conversion dictionary is unavailable.
- The Kana-to-Kanji conversion dictionary is unavailable.
- Connection to the Kana-to-Kanji conversion server is disabled.
If NULL is specified as the third argument, any warning message will be discarded.
(2) KC_CHANGEMODE — Changes the input mode.
KC_CHANGEMODE changes the input mode from the application. Specify KC_CHANGEMODE in the request
field. Specify the jrKanjiStatusWithValue structure in arg.
The Japanese mode is changed by specifying the mode number with the val member of
jrKanjiStatusWithValue structure. The mode number is indicated by the following macros:
Macro number Mode
CANNA_MODE_AlphaMode Alphabet mode
CANNA_MODE_HenkanMode Conversion input mode
CANNA_MODE_KigoMode Symbol input mode
CANNA_MODE_ZenHiraKakuteiMode
Full-wide Hiragana fixed input mode
CANNA_MODE_ZenKataKakuteiMode
Full-wide Katakana fixed mode
CANNA_MODE_HanKataKakuteiMode
Half-wide Katakana fixed input mode
CANNA_MODE_ZenAlphaKakuteiMode
Full-wide alphabet fixed input mode
CANNA_MODE_HanAlphaKakuteiMode
Half-wide alphabet fixed input mode
CANNA_MODE_HexMode Hexadecimal code input mode
CANNA_MODE_BushuMode Bushu input mode
CANNA_MODE_TorokuMode Word register mode
This function causes much dispaly (mode name etc.) to vary in response to a mode change. The
display change is returned by the jrKanjiStatusWithValue structure specified as arg.
(Example)
jrKanjiStatus ks;
jrKanjiStatusWithValue ksv;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
ksv.val = CANNA_MODE_HexMode;
jrKanjiControl(context, KC_CHANGEMODE, &ksv);
len = ksv.val;
.....
/* Information about the unfixed or fixed character string is returned
by ksv. */
(3) KC_SETWIDTH — Specifies the width used to display the candidate list.
KC_SETWIDTH specifies the number of columns of the area on which the candidate list is to be
displayed. The width of one column equals that of an alphabetical or half-wide Katakana character.
Each full-wide Kanji character occupies two columns. Using KC_SETWIDTH, specify the width of
candidate list display area to be specified in the request field. At this time, specify the number
of columns in arg.
(Example)
jrKanjiControl(0, KC_SETWIDTH, (char *)60);
(4) KC_FINALIZE — Finalizes (terminates) processing of Kana-to-Kanji conversion
KC_FINALIZE specifies that Kana-to-Kanji conversion also finalizes (terminates) at the end of the
program and in other cases.
Be sure to execute this process when terminating Kana-to-Kanji conversion processing. All
contents learned up to now are registered in the file. Specify KC_FINALIZE in the request field.
When the process terminates normally, 0 returns. When it terminates abnormally, -1 returns.
When KC_FINALIZE is executed, a warning, rather than an error, may occur. When it occurs, the
pointer to the warning character string array is stored in and returns to the variable specified in
arg. If no warning occurs, NULL is stored and returns.
(Example)
int res; /* Prepare for error return */
char **warning;
.....
res = jrKanjiControl(0, KC_FINALIZE, &warning);
if (warning) {
char **p;
for (p = warning ; *p ; p++) {
fprintf(stderr, "%s0, *p);
}
}
In the library, malloc is done for the warning message returning to the third argument. This
message is freed when KC_INITIALIZE or KC_FINALIZE is executed next. The application programmer
must not free it.
The maximum number of warning messages is restricted to 64 now. The subsequent ones are discarded.
The following warning may be included in a message:
- The dictionary cannot be unmounted.
If NULL is specified as the third argument, any warning message will be discarded.
(5) KC_SETUNDEFKEYFUNCTION — Sets a function for an undefined key.
For example, if you press CTRL-t during input of a reading, it is regarded as undefined key input.
The following processes are executed, responding to undefined key input:
Macro name Process
kc_normal Beep
kc_through Passes the input to the application
kc_kakutei Fixes the input and passes it to the application program.
kc_kill Deletes the input and passes it to the application program.
If kc_normal is specified, the function set in external variable jrBeepFunc is called automatically
by the library when an undefined key is input. If the value is not set in jrBeepFunc, nothing
occurs when ``jrBeepFunc == NULL'' appears.
(Example)
extern (*jrBeepFunc)(), beep();
jrBeepFunc = beep;
jrKanjiControl(0, KC_SETUNDEFKEYFUNCTION, kc_normal);
(6) KC_SETMODEINFOSTYLE — Specifies mode information representation.
You may want to display mode information with data such as the bit map, rather than character
strings. In this case, return of numeric data as mode information helps you execute the process.
Specify KC_SETMODEINFOSTYLE in jrKanjiControl, and pass 1 to arg. After this, one character
representing the mode code (numeric) plus ´@' (0x40) returns to the jrKanjiStatus structure's mode
member. To convert the value into the mode code, subtract '@' (0x40) from the returned character
string. For the mode codes, see the mode change description of Item (2) KC_CHANGEMODE.
(7) KC_KAKUTEI, (8) KC_KILL — Kill the currently input character string.
You may want to relinquish the currently entered character string for some reason. There are two
relinquishing methods. One is to relinquish the character string after including the currently
entered character string as a fixed one. The other is to discard the character string completely
then relinquish it. For the first method, specify KC_KAKUTEI in jrKanjiControl. For the second
method, specify KC_KILL.
Each of the above influences the display. The jrKanjiStatusWithValue must thus be specified as the
third argument.
(Example)
jrKanjiStatusWithValue ksv;
jrKanjiStatus ks;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
jrKanjiControl(context, KC_KAKUTEI, &ksv);
len = ksv.val;
.....
(9) KC_QUERYMODE — Inquiry about the mode
To inquire about the current mode, specify KC_QUERYMODE in jrKanjiControl.
Specify the pointer to the character array in which the mode character string is to be stored. The
mode character string is a character string ending with a null character. To return a numeric
here, specify KC_SETMODEINFOSTYLE in jrKanjiControl to change the mode character string style.
(Example)
char currentMode[MAXMODELEN];
.....
jrKanjiControl(0, KC_QUERYMODE, currentMode);
.....
(10) KC_SETSERVERNAME Specifies the server to be connected.
KC_SETSERVERNAME enables you to switch the Kana-to-Kanji conversion server without terminating the
application program. To set the server to connect as the Kana-to-Kanji conversion server, specify
KC_SETSERVERNAME in jrKanjiControl. In the third argument, specify the name of the server to be
connected.
(11) KC_SETINITFILENAME — Specifies the customize file.
KC_SETINITFILENAM enables the application program to change the customize file. To change the
customize file, specify KC_SETINITFILENAME as the second argument and the file name character
string as the third argument. This process must be executed before KC_INTIALIZE.
(Example)
char *inifile = "app-own.canna"
.....
jrKanjiControl(0, KC_SETINITFILENAME, initfile);
.....
(12) KC_CLOSEUICONTEXT Closes the context.
Any integer may be assigned as the context ID that represents the conversion context. A context ID
that has never been used can be assigned to jrKanjiString or jrKanjiControl. In this case,
initialization for this context is executed to reserve the required memory.
If an input port used up to now is not used, you may want to free the memory reserved for the
context ID assigned to this port. To do so, call jrKanjiControl by specifying KC_CLOSEUICONTEXT as
the second argument.
Because this process causes a display change, specify jrKanjiStatusWithValue as the third
structure.
(Example)
jrKanjiStatusWithValue ksv;
jrKanjiStatus ks;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
jrKanjiControl(0, KC_CLOSEUICONTEXT, &ksv);
.....
(13) KC_QUERYMAXMODESTR — Obtains the maximum length of mode display character string.
The mode display character string can be customized using the initialize file. It is necessary to
examine the size of the display area (in the customized resulting mode display character string)
that is to be reserved. Specify KC_QUERYMAXMODESTR as the second argument, then call
jrKanjiControl. As a result, the number of columns necessary for the mode display character string
is returned. The number of columns is represented, defining that the width of one half-wide
alphanumeric character is 1.
The third argument is unused; dummy value 0 is assigned to it.
(Example)
int max_mode_columns;
.....
max_mode_columns = jrKanjiControl(0, KC_QUERYMAXMODESTR, 0);
.....
NAME
XLookupKanjiString — Converts the keyboard input into Kanji
SYNOPSIS
#include <X11/Xlib.h>
#include <X11/kanji.h>
int
XLookupKanjiString(event_struct, buffer_return, bytes_buffer,
keysym_return, status_return, kanji_status_return)
XKeyEvent *event_struct;
char *buffer_return;
int bytes_buffer;
KeySym *keysym_return;
XComposeStatus *status_return;
XKanjiStatus *kanji_status_return;
ARGUMENTS
event_struct Specifies the key event.
buffer_return Returns the resulting Kanji string.
bytes_buffer Specifies the buffer length.
keysym_return Returns the key symbol. NULL may be specified
status_return Specifies the pointer to the XCompose structure.
kanji_status_return
Returns the Kana-to-Kanji conversion status.
DESCRIPTION
XLookupKanjiString is a convenient routine that associates a key event with a Japanese character string.
It uses the modifier key bit to processes such as shift, lock, and control.
XLookupKanjiString enables eight- and 16-bit Japanese characters to be processed.
XLookupKanjiString processes alphabetical characters in the same way as XLookupString.
For Japanese character processing, Romaji-to-Kana conversion and Kana-to-Kanji conversion are done in
this function. The XKanjiStatus, defined below, is used during Japanese data input:
typedef struct _XKanjiStatus {
unsigned char *echoStr; /* local echo string */
int length; /* length of echo string */
int revPos; /* reverse position */
int revLen; /* reverse length */
unsigned long info; /* other information */
unsigned char *mode; /* mode information */
struct {
unsigned char *line; /* a grance of Kanji characters */
int length; /* length of it */
int revPos; /* reverse position of it */
int revLen; /* reverse length of it */
} gline; /* a grancing line information */
} XKanjiStatus;
#define KanjiModeInfo 01
#define KanjiGLineInfo 02
When Kana-to-Kanji conversion is used during Japanese input, information such as the readings to be
converted need to be echoed (local echo). XLookupKanjiString does not perform display such as local
echo. Instead, it returns the character strings to be submitted to local echo, to the application by
using the XKanjiStatus structure.
The EUC character strings to be submitted to local echo include characters already converted into Kana
from Romaji and conversion candidate characters. Until the conversion is fixed, they are returned by the
echoStr member. At this time, the length of local echo character string is returned by the length
member. Also, the starting position and length (bytes) of reverse display are returned by the revPos and
revLen member, respectively. The buffer for local echo character strings is reserved automatically by
XLookupKanjiString. It should be used only for reading. No character string must be written into this
buffer.
If no character string is to be submitted to local echo, 0 will return to the length member.
The contents to be submitted to local echo may be the same as when XLookupKanjiString was previously
called. (This occurs, for example, when the Shift key is pressed.) In this case, -1 returns to the
length member.
Mode changes and existence of information about the candidate list are passed by the info member. If
info member's KanjiModeInfo bit is on, the character string indicating the new mode will return to mode.
If the info member's KanjiGLineInfo bit is on, the gline structure has contained information such as the
candidate list.
The character string for candidate list display returns to the gline structure's line member. The
length, reverse dispaly starting position, and reverse display duration of the candidate list character
string return to the gline structure's line, revPos, and revLen, respectively.
If there is an EUC character string fixed during conversion, it will be stored in buffer_return. In this
case, the length (bytes) of this character string will return as the return value of this function. If
there is no fixed character string, the return value will be 0.
NAME
XKanjiControl — Control the XLookupKanjiString mode and process.
SYNOPSIS
#include <X11/kanji.h>
int XKanjiControl(dpy, win, request, arg)
Display dpy;
Window win;
int request;
char *arg;
DESCRIPTION
XKanjiControl executes a process that relates to Japanese input within the window defined by dpy and win.
The process is specified in request. Some processes are accompanied by the argument, specified in arg.
XKanjiControl controls the following functions:
request name Function
KC_INITIALIZE Initializes Kana-to-Kanji conversion.
KC_CHANGEMODE Changes the input mode.
KC_SETWIDTH Specifies the width used to display the candidate
KC_FINALIZE Finalizes (terminates) Kana-to-Kanji conversion processing.
KC_SETUNDEFKEYFUNCTION
Sets a function for an undefined key.
KC_SETMODEINFOSTYLE
Specifies whether mode information is represented in numeric form.
KC_KAKUTEI Fixes the currently entered character string.
KC_KILL Deletes the currently entered character string.
KC_QUERYMODE Queries about the current mode.
KC_SETSERVERNAME Specifies the server to be connected.
KC_SETINITFILENAME
Specifies the customize file.
KC_CLOSEUICONTEXT Closes the context.
KC_QUERYMAXMODESTR
Obtains the maximum length of mode display character string.
Basically, XKanjiControl is enabled only for the window specified in the dpy and win. This rule does not
apply to the initialize and terminate processes.
The unfixed character string condition may change, or details of the mode may vary, depending on the
XKanjiControl operation. If this may occur, pass the pointer to a structure that can contain the varied
information in the arg field. This structure is defined as follows:
typedef struct {
int val; /* The length of the character string in the
buffer returns. */
unsigned char *buffer; /* Specifies the buffer used to store the
fixed character string. */
int bytes_buffer; /* Specifies the size of the above buffer. */
XKanjiStatus *ks; /* Pointer to the structure that contains
information about the unfixed character string. */
} XKanjiStatusWithValue;
The XKanjiControl functions can be executed in the following ways:
(1) KC_INITIALIZE — Initializes Kana-to-Kanji conversion.
KC_INITIALIZE initializes Kana-to-Kanji conversion by specifying KC_INITIALIZE in the request
field. Specify one of the following in arg: (1) the pointer to the char ** type variable used to
store the warning message and (2) NULL. The initialize process is basically executed automatically
when XLookupKanjiString(3) is first called. This is skipped by using XKanjiControl for
initialization.
For example, when control about Kana-to-Kanji conversion is executed using XKanjiControl before use
of XLookupKanjiString(3), Kana-to-Kanji conversion must be initialized.
When the process terminates normally, 0 returns as the XKanjiControl return value. When it
terminates abnormally, -1 returns.
When KC_INITIALIZE is executed, a warning, rather than an error, may occur. When it occurs, the
pointer to the warning character string array is stored in and returns to the variable specified in
arg. If no warning occurs, NULL is stored and returns.
(Example)
int res; /* Prepare for error return */
char **warning;
.....
res = XKanjiControl(dpy, win, KC_INITIALIZE, &warning);
if (warning) {
char **p;
for (p = warning ; *p ; p++) {
fprintf(stderr, "%s0, *p);
}
}
In the library, malloc is done for the warning message returning to the fourth argument. This
message is freed when KC_INITIALIZE or KC_FINALIZE is executed next. The application programmer
must not free it. The maximum number of warning messages is restricted to 64 now. The subsequent
ones are discarded.
The following warnings may be included in a message:
- All customize files including those of the system are unavailable.
- The customize file contains a syntax error.
- The Romaji-to-Kana conversion dictionary is unavailable.
- The Kana-to-Kanji conversion dictionary is unavailable.
- Connection to the Kana-to-Kanji conversion server is disabled.
If NULL is specified as the fourth argument, any warning message will be discarded.
(2) KC_CHANGEMODE — Changes the input mode.
KC_CHANGEMODE changes the input mode from the application. Specify KC_CHANGEMODE in the request
field. Specify the XKanjiStatusWithValue structure in arg. The Japanese mode is changed by
specifying the mode number with the val member of XKanjiStatusWithValue structure. The mode number
is indicated by the following macros:
Macro number Mode
CANNA_MODE_AlphaMode Alphabet mode
CANNA_MODE_HenkanMode Conversion input mode
CANNA_MODE_KigoMode Symbol input mode
CANNA_MODE_ZenHiraKakuteiMode
Full-wide Hiragana fixed input mode
CANNA_MODE_ZenKataKakuteiMode
Full-wide Katakana fixed mode
CANNA_MODE_HanKataKakuteiMode
Half-wide Katakana fixed input mode
CANNA_MODE_ZenAlphaKakuteiMode
Full-wide alphabet fixed input mode
CANNA_MODE_HanAlphaKakuteiMode
Half-wide alphabet fixed input mode
CANNA_MODE_HexMode Hexadecimal code input mode
CANNA_MODE_BushuMode Bushu input mode
CANNA_MODE_TorokuMode Word register mode
This function causes much dispaly (mode name etc.) to vary in response to a mode change. The
display change is returned by the XKanjiStatusWithValue structure specified as arg.
(Example)
XKanjiStatus ks;
XKanjiStatusWithValue ksv;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
ksv.val = CANNA_MODE_HexMode;
XKanjiControl(dpy, win, KC_CHANGEMODE, &ksv);
len = ksv.val;
.....
/* Information about the unfixed or fixed character string is
returned by ksv. */
(3) KC_SETWIDTH — Specifies the width used to display the candidate list.
KC_SETWIDTH specifies the number of columns of the area on which the candidate list is to be
displayed. The width of one column equals that of an alphabetical or half-wide Katakana character.
Each full-wide Kanji character occupies two columns. Using KC_SETWIDTH, specify the width of
candidate list display area to be specified in the request field. At this time, specify the number
of columns in arg.
(Example)
XKanjiControl(dpy, win, KC_SETWIDTH, (char *)60);
(4) KC_FINALIZE — Finalizes (terminates) processing of Kana-to-Kanji conversion
KC_FINALIZE specifies that Kana-to-Kanji conversion also finalizes (terminates) at the end of the
program and in other cases. Be sure to execute this process when terminating Kana-to-Kanji
conversion processing. All contents learned up to now are registered in the file. Specify
KC_FINALIZE in the request field.
When the process terminates normally, 0 returns. When it terminates abnormally, -1 returns.
When KC_INITIALIZE is executed, a warning, rather than an error, may occur. When it occurs, the
pointer to the warning character string array is stored in and returns to the variable specified in
arg. If no warning occurs, NULL is stored and returns.
(Example)
int res; /* Prepare for error return */
char **warning;
.....
res = XKanjiControl(dpy, win, KC_FINALIZE, &warning);
if (warning) {
char **p;
for (p = warning ; *p ; p++) {
fprintf(stderr, "%s0, *p);
}
}
In the library, malloc is done for the warning message returning to the fourth argument. This
message is freed when KC_INITIALIZE or KC_FINALIZE is executed next. The application programmer
must not free it.
The maximum number of warning messages is restricted to 64 now. The subsequent ones are discarded.
The following warning may be included in a message:
- The dictionary cannot be unmounted.
If NULL is specified as the fourth argument, any warning message will be discarded.
(5) KC_SETUNDEFKEYFUNCTION — Sets a function for an undefined key.
For example, if you press CTRL-t during input of a reading, it is regarded as undefined key input.
The following processes are executed, responding to undefined key input:
Macro name Process
kc_normal Beep
kc_through Passes the input to the application program.
kc_kakutei Fixes the input and passes it to the application program.
kc_kill Deletes the input and passes it to the application program.
If kc_normal is specified, the function set in external variable jrBeepFunc is called automatically
by the library when an undefined key is input. If the value is not set in jrBeepFunc, nothing
occurs when "jrBeepFunc == NULL" appears.
(Example)
extern (*jrBeepFunc)(), beep();
jrBeepFunc = beep;
XKanjiControl(dpy, win, KC_SETUNDEFKEYFUNCTION, kc_normal);
(6) KC_SETMODEINFOSTYLE — Specifies mode information representation.
You may want to display mode information with data such as the bit map, rather than character
strings. In this case, return of numeric data as mode information helps you execute the process.
Specify KC_SETMODEINFOSTYLE in XKanjiControl, and pass 1 to arg. After this, one character
representing the mode code (numeric) plus ´@' (0x40) returns to the XKanjiStatus structure's mode
member. To convert the value into the mode code, subtract '@' (0x40) from the returned character
string. For the mode codes, see the mode change description of Item (2) KC_CHANGEMODE.
(7) KC_KAKUTEI, (8) KC_KILL — Kill the currently input character string.
You may want to relinquish the currently entered character string for some reason. There are two
relinquishing methods. One is to relinquish the character string after including the currently
entered character string as a fixed one. The other is to discard the character string completely
then relinquish it. For the first method, specify KC_KAKUTEI in jrKanjiControl. For the second
method, specify KC_KILL.
Each of the above influences the display. The XKanjiStatusWithValue must thus be specified as the
fourth argument.
(Example)
XKanjiStatusWithValue ksv;
XKanjiStatus ks;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
XKanjiControl(dpy, win, KC_KAKUTEI, &ksv);
len = ksv.val;
.....
(9) KC_QUERYMODE — Inquiry about the mode
To inquire about the current mode, specify KC_QUERYMODE in XKanjiControl.
Specify the pointer to the character array in which the mode character string is to be stored. The
mode character string is a character string ending with a null character. To return a numeric
here, specify KC_SETMODEINFOSTYLE in XKanjiControl to change the mode character string style.
(Example)
char currentMode[MAXMODELEN];
.....
XKanjiControl(dpy, win, KC_QUERYMODE, currentMode);
.....
(10) KC_SETSERVERNAME — Specifies the server to be connected.
KC_SETSERVERNAME enables you to switch the Kana-to-Kanji conversion server without terminating the
application program. To set the server to connect as the Kana-to-Kanji conversion server, specify
KC_SETSERVERNAME in XKanjiControl. In the fourth argument, specify the name of the server to be
connected.
(11) KC_SETINITFILENAME — Specifies the customize file.
KC_SETINITFILENAM enables the application program to change the customize file. To change the
customize file, specify KC_SETINITFILENAME as the third argument and the file name character string
as the fourth argument. This process must be executed before KC_INTIALIZE.
(Example)
char *inifile = "app-own.canna"
.....
XKanjiControl(dpy, win, KC_SETINITFILENAME, initfile);
.....
(12) KC_CLOSEUICONTEXT Closes the context.
When XKanjiControl or XLookupKanjiString is called, one conversion context is assigned to
combination of dpy and win. Combination of dpy and win not used yet can be specified for
XKanjiControl or XLookupKanjiString. When this is done, a new context is created for the window
and the required memory is reserved.
If a window used up to now is not used, you may want to free the context memory that has been
assigned to this window. To do so, call XKanjiControl by specifying KC_CLOSEUICONTEXT as the third
argument.
Because this process causes a display change, specify XKanjiStatusWithValue as the fourth
structure.
(Example)
XKanjiStatusWithValue ksv;
XKanjiStatus ks;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
XKanjiControl(dpy, win, KC_CLOSEUICONTEXT, &ksv);
.....
(13) KC_QUERYMAXMODESTR — Obtains the maximum length of mode display character string.
The mode display character string can be customized using the initialize file. It is necessary to
examine the size of the display area (in the customized resulting mode display character string)
that is to be reserved. Specify KC_QUERYMAXMODESTR as the third argument, then call XKanjiControl.
As a result, the number of columns necessary for the mode display character string is returned.
(The number of columns is represented, defining that the width of one half-wide alphanumeric
character is 1.
The fourth argument is unused; dummy value 0 is assigned to it.
(Example)
int max_mode_columns;
.....
max_mode_columns = XKanjiControl(dpy, win, KC_QUERYMAXMODESTR, 0);
.....
XKANJICONTROL(3)