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)