newCDKSwindow, activateCDKSwindow, injectCDKSwindow,
setCDKSwindow, setCDKSwindowContents, getCDKSwindowContents,
setCDKSwindowBox, getCDKSwindowBox, setCDKSwindowULChar,
setCDKSwindowURChar, setCDKSwindowLLChar,
setCDKSwindowLRChar, setCDKSwindowVerticalChar, setCDKSwindowHorizontalChar,
setCDKSwindowBoxAttribute, setCDKSwindowBackgroundColor,
drawCDKSwindow, eraseCDKSwindow,
cleanCDKSwindow, addCDKSwindow, execCDKSwindow, trimCDKSwindow,
saveCDKSwindowInformation, jumpToLineCDKSwindow,
loadCDKSwindowInformation, dumpCDKSwindow, destroyCDKSwindow,
setCDKSwindowPreProcess, setCDKSwindowPostProcess -
Creates a managed curses swindow widget.
cc [ flag ... ] file ... -lcdk [ library ... ]
#include <cdk.h>
CDKSWINDOW *newCDKSwindow (CDKSCREEN *cdkscreen, int xpos,
int ypos, int height, int width, char *title, int save-
Lines, boolean box, boolean shadow);
void activateCDKSwindow (CDKSWINDOW *swindow, chtype *
actions);
int injectCDKSwindow (CDKSWINDOW *swindow, chtype input);
void setCDKSwindow (CDKSWINDOW *swindow, char **info, int
lines, boolean box);
void setCDKSwindowContents (CDKSWINDOW *swindow, char
**info, int lines);
char **getCDKSwindowContents (CDKSWINDOW *swindow);
void setCDKSwindowULChar (CDKSWINDOW *,swindow, chtype
character);
void setCDKSwindowURChar (CDKSWINDOW *,swindow, chtype
character);
void setCDKSwindowLLChar (CDKSWINDOW *,swindow, chtype
character);
void setCDKSwindowLRChar (CDKSWINDOW *,swindow, chtype
character);
void setCDKSwindowVerticalChar (CDKSWINDOW *,swindow,
chtype character);
void setCDKSwindowHorizontalChar (CDKSWINDOW *,swindow,
chtype character);
void setCDKSwindowBoxAttribute (CDKSWINDOW *,swindow,
chtype character);
void setCDKSwindowBackgroundColor (CDKSWINDOW *,swindow,
char * color);
void moveCDKSwindow (CDKSWINDOW *swindow, int box, int
box, boolean relative, boolean refresh);
void positionCDKSwindow (CDKSWINDOW *swindow);
void drawCDKSwindow (CDKSWINDOW *swindow, boolean box);
void eraseCDKSwindow (CDKSWINDOW *swindow);
void cleanCDKSwindow (CDKSWINDOW *swindow);
void addCDKSwindow (CDKSWINDOW *swindow, char *info, int
insertPosition);
int execCDKSwindow (CDKSWINDOW *swindow, char * command,
int insertPosition);
void trimCDKSwindow (CDKSWINDOW *swindow, int start, int
finish);
void saveCDKSwindowInformation (CDKSWINDOW *swindow);
void jumpToLineCDKSwindow (CDKSWINDOW *swindow, int line);
void loadCDKSwindowInformation (CDKSWINDOW *swindow);
void dumpCDKSwindow (CDKSWINDOW *swindow, char *filename);
void destroyCDKSwindow (CDKSWINDOW *swindow);
void setCDKSwindowPreProcess (CDKSWINDOW *swindow, PRO-
CESSFN callback, void * data);
void setCDKSwindowPostProcess (CDKSWINDOW *swindow, PRO-
CESSFN callback, void * data);
void bindCDKObject (EObjectType widgetType, void *object,
chtype key, BINDFN function, void *data);
The Cdk scrolling window widget creates a widget which can
be used to display messages. The following are functions
which create or manipulate the Cdk swindow box widget.
CDKSWINDOW *newCDKSwindow (CDKSCREEN *screen, int xpos,
int ypos, int height, int width, char *title, int save-
Lines, boolean box);
This function creates a pointer to a swindow widget.
The screen parameter is the screen you wish this widget
to be placed in. The parameter xpos controls the placement
of the object along the horizontal axis. This
parameter can accept an integer value or one of the
pre-defined values of LEFT, RIGHT, and CENTER. The
parameter ypos controls the placement of the object
along the vertical axis. This parameter can accept an
integer value or one of the pre-defined values of TOP,
BOTTOM, and CENTER. The parameters height and width
control the height and width of the widget. If you provide
a value of zero for either of the height or the
width, the widget will be created with the full width
and height of the screen. If you provide a negative
value, the widget will be created the full height or
width minus the value provided. The title parameter is
the string which will be displayed at the top of the
widget. The title can be more than one line; just provide
a carriage return character at the line break. The
parameter saveLines is the number of lines to save
before throwing information away. The box parameter
states whether the widget will be drawn with a box
around it or not. The shadow parameter accepts a
boolean value to turn the shadow on or off around this
widget. If the widget could not be created then a NULL
pointer is returned.
int activateCDKSwindow (CDKSWINDOW *swindow, chtype
*actions);
This function activates the swindow widget and lets the
user interact with the widget. The parameter swindow is
a pointer to a non-NULL swindow widget. If the actions
parameter is passed with a non-NULL value, the characters
in the array will be injected into the widget. To
activate the widget interactively pass in a NULL
pointer for actions. If the character entered into this
widget is RETURN or TAB then this function will return
1. It will also set the structure member exitType to
vNORMAL. If the character entered into this widget was
ESCAPE then the widget will return a value of -1 and
the structure member exitType will be set to
vESCAPE_HIT.
void injectCDKSwindow (CDKSWINDOW *swindow, chtype charac-
ter);
This function injects a single character into the widget.
The parameter swindow is a pointer to a non-NULL
swindow widget. The parameter character is the character
to inject into the widget. If the character
injected into this widget was RETURN then the character
injected into this widget is RETURN or TAB then this
function will return 1. It will also set the structure
member exitType to vNORMAL. If the character entered
into this widget was ESCAPE then the widget will return
a value of -1 and the structure member exitType will be
set to vESCAPE_HIT. Any other character injected into
the widget will set the structure member exitType to
vEARLY_EXIT and the function will return -1.
void setCDKSwindow (CDKSWINDOW *swindow, char **info, int
lines, boolean box);
This function lets the programmer modify certain elements
of an already defined swindow widget. The parameter
info is a char ** of the information to set in the
scrolling window; lines is the number of lines being
added. The other parameter names correspond to the
same parameter names listed in the newCDKSwindow function.
void setCDKSwindowContents (CDKSWINDOW *swindow, char
**info, int lines);
This function lets the programmer modify certain elements
of an already defined swindow widget. The parameter
info is a char ** of the information to set in the
scrolling window; lines is the number of lines being
added.
char **getCDKSwindowContents (CDKSWINDOW *swindow, int
*lines);
This returns the contents of the scrolling window. The
parameter lines will be set to the number of lines
returned.
void setCDKSwindowBox (CDKSWINDOW *swindow, boolean
boxWidget);
This sets whether or not the widget will be draw with a
box around it.
boolean getCDKSwindowBox (CDKSWINDOW *swindow);
This returns whether or not the widget will be drawn
with a box around it.
void setCDKSwindowULChar (CDKSWINDOW *swindow, chtype
character);
This function sets the upper left hand corner of the
widgets box to the given character.
void setCDKSwindowURChar (CDKSWINDOW *swindow, chtype
character);
This function sets the upper right hand corner of the
widgets box to the given character.
void setCDKSwindowLLChar (CDKSWINDOW *swindow, chtype
character);
This function sets the lower left hand corner of the
widgets box to the given character.
void setCDKSwindowLRChar (CDKSWINDOW *swindow, chtype
character);
This function sets the lower right hand corner of the
widgets box to the given character.
void setCDKSwindowVerticalChar (CDKSWINDOW *swindow,
chtype character);
This function sets the vertical drawing character for
the box to the given character.
void setCDKSwindowHorizontalChar (CDKSWINDOW *swindow,
chtype character);
This function sets the horizontal drawing character for
the box to the given character.
void setCDKSwindowBoxAttribute (CDKSWINDOW *swindow,
chtype attribute);
This function sets the attribute of the box.
void setCDKSwindowBackgroundColor (CDKSWINDOW *swindow,
char *color);
This sets the background color of the widget. The
parameter color is in the format of the Cdk format
strings. To get more information look at the cdk_dis-
play manual page.
void moveCDKSwindow (CDKSWINDOW *swindow, int xpos, int
ypos, boolean relative, boolean refresh);
This function moves the given widget to the given position.
The parameters xpos and ypos is the new position
of the widget. The parameter xpos can accept an integer
value or one of the pre-defined values of TOP, BOTTOM,
and CENTER. The parameter ypos can accept an integer
value or one of the pre-defined values of LEFT, RIGHT,
and CENTER. The parameter relative states whether the
xpos/ypos pair is a relative move or an absolute move.
For example if xpos = 1 and ypos = 2 and relative =
TRUE, then the widget would move one row down and two
columns right. If the value of relative was FALSE then
the widget would move to the position (1,2). Do not use
the values of TOP, BOTTOM, LEFT, RIGHT, or CENTER when
relative = TRUE. (weird things may happen). The final
parameter refresh is a boolean value which states
whether the widget will get refreshed after the move or
not.
void positionCDKSwindow (CDKSWINDOW *swindow);
This function allows the user to move the widget around
the screen via the cursor/keypad keys. The following
key bindings can be used to move the widget around the
screen.
Key Bindings
Key Action
Up Arrow Moves the widget up one line.
Down Arrow Moves the widget down one line.
Left Arrow Moves the widget left one column
Right Arrow Moves the widget right one column
Keypad-1 Moves the widget down one line
and left one column.
Keypad-2 Moves the widget down one line.
Keypad-3 Moves the widget down one line
and right one column.
Keypad-4 Moves the widget left one column
Keypad-5 Centers the widget both vertically
and horizontally.
Keypad-6 Moves the widget right one column
Keypad-7 Moves the widget up one line
and left one column.
Keypad-8 Moves the widget up one line.
Keypad-9 Moves the widget up one line
and right one column.
t Moves the widget to the top of the screen.
b Moves the widget to the bottom of the screen.
l Moves the widget to the left of the screen.
r Moves the widget to the right of the screen.
c Centers the widget between the left and
right of the window.
C Centers the widget between the top and
bottom of the window.
Escape Returns the widget to it's original position.
Return Exits the function and leaves the widget
where it was.
Keypad means that if the keyboard you are using has
a keypad, then the Num-Lock light has to be on in
order to use the keys as listed. (The numeric keys
at the top of the keyboard will work as well.)
void drawCDKSwindow (CDKSWINDOW *swindow, boolean
box);
This function draws the swindow widget on the
screen. The box option draws the widget with or
without a box.
void eraseCDKSwindow (CDKSWINDOW *swindow);
This function removes the widget from the screen.
This does NOT destroy the widget.
void cleanCDKSwindow (CDKSWINDOW *swindow);
This function clears the information from the
window.
void addCDKSwindow (CDKSWINDOW *swindow, char *info,
int insertPosition);
This function adds information to a defined
scrolling window. The information is supplied by
the info parameter. The information is immediately
added to the scrolling window. The position
of the new information is governed by the value
of the parameter insertPosition. This parameter
can accept two values: TOP or BOTTOM.
void execCDKSwindow (CDKSWINDOW *swindow, char *com-
mand, int insertPosition);
This function allows the user to execute a shell
command and have the output of the shell command
direct itself to the scrolling window. The com-
mand parameter is the command to execute while
insertPosition is where the output is to insert
itself within the scrolling window.
void trimCDKSwindow (CDKSWINDOW *swindow, int start,
int end);
This function removes information from the
scrolling window. The parameters start and end
state where to start cutting from and where to
stop. The first element in the scrolling window
starts at index 0.
void saveCDKSwindowInformation (CDKSWINDOW *swindow)
This function allows the user to save the contents
of the scrolling window into a file. This
function is interactive, and will ask for a filename.
void jumpToLineCDKSwindow (CDKSWINDOW *swindow, int
line);
This function moves the scrolling window to the
given line. The parameter line can accept and
integer or one of the two predefined values of
TOP and BOTTOM.
void loadCDKSwindowInformation (CDKSWINDOW *swindow)
This function allows the user to load the contents
of a file into the scrolling window. This
function is interactive, and will ask for a filename.
int dumpCDKSwindowInformation (CDKSWINDOW *swindow,
char *filename)
This function saves the contents of the scrolling
window into the file specified by the filename
parameter. It returns -1 on failure, and the number
of lines saved if the dump was successful.
void destroyCDKSwindow (CDKSWINDOW *swindow);
This function removes the widget from the screen
and frees up any memory the object may be using.
void setCDKSwindowPreProcess (CDKSWINDOW *swindow,
PROCESSFN function, void *data);
This function allows the user to have the widget
call a function after a key is hit and before the
key is applied to the widget. The parameter func-
tion if of type PROCESSFN. The parameter data is
a pointer to void. To learn more about pre-processing
read the cdk_process manual page.
void setCDKSwindowPostProcess (CDKSWINDOW *swindow,
PROCESSFN function, void *data);
This function allows the user to have the widget
call a function after the key has been applied to
the widget. The parameter function if of type
PROCESSFN. The parameter data is a pointer to
void. To learn more about post-processing read
the cdk_process manual page.
void bindCDKObject (EObjectType widgetType, void
*object, char key, BINDFN function, void *data);
This function allows the user to create special
key bindings. The widgetType parameter is a
defined type which states what Cdk object type is
being used. To learn more about the type EOb-
jectType read the cdk_binding manual page. The
object parameter is the pointer to the widget
object. The key is the character to bind. The
function is the function type. To learn more
about the key binding callback function types
read the cdk_binding manual page. The last parameter
data is a pointer to any data that needs to
get passed to the callback function.
When the widget is activated there are several default key
bindings which will help the user enter or manipulate the
information quickly. The following table outlines the keys
and their actions for this widget.
Key Action
Left Arrow Scrolls the window left one character.
Right Arrow Scrolls the window right one character.
Up Arrow Scrolls the window up one line.
Down Arrow Scrolls the window up down line.
Prev Page Scrolls the window backwards one page.
Ctrl-B Scrolls the window backwards one page.
b Scrolls the window backwards one page.
B Scrolls the window backwards one page.
Next Page Scrolls the window forwards one page.
Ctrl-F Scrolls the window forwards one page.
Space Scrolls the window forwards one page.
f Scrolls the window forwards one page.
F Scrolls the window forwards one page.
Home Moves the whole list to the far left character.
| Moves the whole list to the far left character.
End Moves the whole list to the far right character.
$ Moves the whole list to the far right character.
g Moves to the top of the scrolling window.
1 Moves to the top of the scrolling window.
G Moves to the bottom of the scrolling window.
l Loads a file into the scrolling window.
L Loads a file into the scrolling window.
s Saves the contents of the scrolling window into a file.
S Saves the contents of the scrolling window into a file.
Return Exits the widget and returns 1. This also sets
the structure member exitType in the widget
pointer to the value of vNORMAL.
Tab Exits the widget and returns 1. This also sets
the structure member exitType in the widget
pointer to the value of vNORMAL.
Escape Exits the widget and returns -1. This also sets
the structure member exitType in the widget
pointer to the value of vESCAPE_HIT.
Ctrl-L Refreshes the screen.
cdk(3), cdk_binding(3), cdk_display(3), cdk_screen(3)
The header file <cdk.h> automatically includes the header
files <curses.h>, <stdlib.h>, <string.h>, <ctype.h>,
<unistd.h>, <dirent.h>, <time.h>, <errno.h>, <pwd.h>,
<grp.h>, <sys/stat.h>, and <sys/types.h>. The <curses.h>
header file includes <stdio.h> and <unctrl.h>.
If you have Ncurses installed on your machine add
-DNCURSES to the compile line to include the Ncurses
header files instead.
18 March 1997 cdk_swindow(3)
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