newCDKMarquee, activateCDKMarquee, drawCDKMarquee, eraseCDKMarquee, setCDKMarqueeULChar, setCDKMarqueeURChar, setCDKMarqueeLLChar, setCDKMarqueeLRChar, setCDKMarqueeVerticalChar, setCDKMarqueeHorizontalChar, setCDKMarqueeBoxAttribute, setCDKMarqueeBackgroundColor, destroyCDKMarquee - Creates a managed curses marquee widget.

cc [ flag ... ] file ... -lcdk [ library ... ]

#include <cdk.h>

CDKMARQUEE *newCDKMarquee (CDKSCREEN *cdkscreen, int xpos, int ypos, int fieldWidth, boolean shadow);

int activateCDKMarquee (CDKMARQUEE *marquee, char *message, int delay, int repeat, boolean box);

void setCDKMarqueeULChar (CDKMARQUEE *,marquee, chtype character);

void setCDKMarqueeURChar (CDKMARQUEE *,marquee, chtype character);

void setCDKMarqueeLLChar (CDKMARQUEE *,marquee, chtype character);

void setCDKMarqueeLRChar (CDKMARQUEE *,marquee, chtype character);

void setCDKMarqueeVerticalChar (CDKMARQUEE *,marquee, chtype character);

void setCDKMarqueeHorizontalChar (CDKMARQUEE *,marquee, chtype character);

void setCDKMarqueeBoxAttribute (CDKMARQUEE *,marquee, chtype character);

void setCDKMarqueeBackgroundColor (CDKMARQUEE *,marquee, char * color);

void moveCDKMarquee (CDKMARQUEE *marquee, int box, int box, boolean relative, boolean refresh);

void positionCDKMarquee (CDKMARQUEE *marquee);

void drawCDKMarquee (CDKMARQUEE *marquee, boolean box);

void eraseCDKMarquee (CDKMARQUEE *marquee);

void destroyCDKMarquee (CDKMARQUEE *marquee);

The Cdk marquee widget creates a pop-up marquee window. The following are functions which create or manipulate the Cdk marquee widget.

CDKMARQUEE *newCDKMarquee (CDKSCREEN *screen, int xpos, int ypos, int fieldWidth, boolean shadow); This function creates a pointer to a marquee 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 width parameter state how wide the field is to be. If you provide a value of zero for the width, the widget will assume the full width of the screen. If a negative value is provided, then the widget will assume the full width of the screen minus the value provided. 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 activateCDKMarquee (CDKMARQUEE *marquee, char *message, int delay, int repeat, boolean box); This function activates the marquee widget. The marquee parameter is a pointer to a defined marquee widget. The delay parameter states how long to wait between movements. This value is highly dependent on each machine the program runs on. The repeat value tells the marquee widget how many times to display the given message. The box option draws the widget with or without a box. This function returns -1 if the message passed is NULL, 0 otherwise.

void setCDKMarqueeULChar (CDKMARQUEE *marquee, chtype character); This function sets the upper left hand corner of the widgets box to the given character.

void setCDKMarqueeURChar (CDKMARQUEE *marquee, chtype character); This function sets the upper right hand corner of the widgets box to the given character.

void setCDKMarqueeLLChar (CDKMARQUEE *marquee, chtype character); This function sets the lower left hand corner of the widgets box to the given character.

void setCDKMarqueeLRChar (CDKMARQUEE *marquee, chtype character); This function sets the lower right hand corner of the widgets box to the given character.

void setCDKMarqueeVerticalChar (CDKMARQUEE *marquee, chtype character); This function sets the vertical drawing character for the box to the given character.

void setCDKMarqueeHorizontalChar (CDKMARQUEE *marquee, chtype character); This function sets the horizontal drawing character for the box to the given character.

void setCDKMarqueeBoxAttribute (CDKMARQUEE *marquee, chtype attribute); This function sets the attribute of the box.

void setCDKMarqueeBackgroundColor (CDKMARQUEE *marquee, 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_display manual page.

void moveCDKMarquee (CDKMARQUEE *marquee, 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. (wierd 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 positionCDKMarquee (CDKMARQUEE *marquee); 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 drawCDKMarquee (CDKMARQUEE *marquee, boolean box); This function draws the marquee widget on the screen. The box option draws the widget with or without a box.

void eraseCDKMarquee (CDKMARQUEE *marquee); This function removes the widget from the screen. This does NOT destroy the widget.

void destroyCDKMarquee (CDKMARQUEE *marquee); This function removes the widget from the screen and frees up any memory the object may be using.

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.