462 lines
19 KiB
Groff
462 lines
19 KiB
Groff
.de It
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.br
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.ie \\n(.$>=3 .ne \\$3
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.el .ne 3
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.IP "\\$1" \\$2
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..
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.TH cdk_alphalist 3 "24 April 1997"
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.SH NAME
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newCDKAlphalist, activateCDKAlphalist, injectCDKAlphalist, setCDKAlphalist,
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setCDKAlphalistContents, getCDKAlphalistContents,
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setCDKAlphalistFillerChar, getCDKAlphalistFillerChar,
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setCDKAlphalistContents, getCDKAlphalistContents,
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setCDKAlphalistHighlight, getCDKAlphalistHighlight,
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setCDKAlphalistBox, getCDKAlphalistBox,
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setCDKAlphalistULChar, setCDKAlphalistURChar,
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setCDKAlphalistLLChar, setCDKAlphalistLRChar,
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setCDKAlphalistVerticalChar, setCDKAlphalistHorizontalChar,
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setCDKAlphalistBoxAttribute,
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setCDKAlphalistBackgroundColor,
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moveCDKAlphalist, positionCDKAlphalist,
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drawCDKAlphalist, eraseCDKAlphalist, destroyCDKAlphalist,
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setCDKAlphalistPreProcess, setCDKAlphalistPostProcess \-
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Creates a managed curses sorted alphabet list widget.
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.SH SYNOPSIS
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.LP
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.B cc
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.RI "[ " "flag" " \|.\|.\|. ] " "file" " \|.\|.\|."
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.B \-lcdk
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.RI "[ " "library" " \|.\|.\|. ]"
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.LP
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#include <cdk.h>
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.LP
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.BI "CDKALPHALIST *newCDKAlphalist (CDKSCREEN *" "cdkscreen",
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.BI "int " "xpos",
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.BI "int " "ypos",
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.BI "int " "height",
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.BI "int " "width",
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.BI "char * " "title",
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.BI "char * " "label",
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.BI "char ** " "list",
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.BI "int " "listSize",
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.BI "chtype " "fillerCharacter",
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.BI "chtype " "highlight",
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.BI "boolean " "box",
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.BI "boolean " "shadow");
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.LP
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.BI "char *activateCDKAlphalist (CDKALPHALIST *" "alphalist",
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.BI "chtype *" "actions");
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.LP
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.BI "char *injectCDKAlphalist (CDKALPHALIST *" "alphalist",
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.BI "chtype " "input");
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.LP
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.BI "void setCDKAlphalist (CDKALPHALIST *" "alphalist",
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.BI "char ** " "list",
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.BI "int " "listSize",
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.BI "chtype " "fillerCharacter",
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.BI "chtype " "highlight",
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.BI "boolean " "box");
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.LP
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.BI "void setCDKAlphalistContents (CDKALPHALIST *" "alphalist",
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.BI "char ** " "list",
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.BI "int " "listSize");
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.LP
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.BI "char **getCDKAlphalistContents (CDKALPHALIST *" "alphalist");
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.LP
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.BI "void setCDKAlphalistFillerChar (CDKALPHALIST *" "alphalist",
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.BI "chtype " "fillerCharacter");
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.LP
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.BI "chtype getCDKAlphalistFillerChar (CDKALPHALIST *" "alphalist");
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.LP
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.BI "void setCDKAlphalistHighlight (CDKALPHALIST *" "alphalist",
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.BI "chtype " "highlight");
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.LP
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.BI "chtype setCDKAlphalistHighlight (CDKALPHALIST *" "alphalist");
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.LP
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.BI "void setCDKAlphalistBox (CDKALPHALIST *" "alphalist",
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.BI "boolean " "box");
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.LP
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.BI "boolean getCDKAlphalistBox (CDKALPHALIST *" "alphalist");
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.LP
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.BI "void setCDKAlphalistULChar (CDKALPHALIST *", "alphalist",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKAlphalistURChar (CDKALPHALIST *", "alphalist",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKAlphalistLLChar (CDKALPHALIST *", "alphalist",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKAlphalistLRChar (CDKALPHALIST *", "alphalist",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKAlphalistVerticalChar (CDKALPHALIST *", "alphalist",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKAlphalistHorizontalChar (CDKALPHALIST *", "alphalist",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKAlphalistBoxAttribute (CDKALPHALIST *", "alphalist",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKAlphalistBackgroundColor (CDKALPHALIST *", "alphalist",
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.BI "char * " "color");
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.LP
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.BI "void moveCDKAlphalist (CDKALPHALIST *" "alphalist",
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.BI "int " "box",
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.BI "int " "box",
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.BI "boolean " "relative",
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.BI "boolean " "refresh");
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.LP
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.BI "void positionCDKAlphalist (CDKALPHALIST *" "alphalist");
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.LP
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.BI "void drawCDKAlphalist (CDKALPHALIST *" "alphalist",
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.BI "boolean " "box");
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.LP
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.BI "void eraseCDKAlphalist (CDKALPHALIST *" "alphalist");
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.LP
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.BI "void destroyCDKAlphalist (CDKALPHALIST *" "alphalist");
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.LP
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.BI "void setCDKAlphalistPreProcess (CDKALPHALIST *" "alphalist",
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.BI "PROCESSFN " "callback",
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.BI "void * " "data");
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.LP
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.BI "void setCDKAlphalistPostProcess (CDKALPHALIST *" "alphalist",
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.BI "PROCESSFN " "callback",
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.BI "void * " "data");
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.LP
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.BI "void bindCDKObject (EObjectType " "widgetType",
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.BI "void *" "object",
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.BI "chtype " "key",
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.BI "BINDFN " "function",
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.BI "void *" "data");
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.SH DESCRIPTION
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The Cdk alphalist allows a user to select from a list of alphabetically
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sorted words. The user can use the arrow keys to traverse through the
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list or type in the beginning of the word and the list will automatically
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adjust itself in the correct place in the scrolling list. This widget,
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like the file selector widget, is a compound widget of both the entry
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field widget and the scrolling list widget.
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.SH AVAILABLE FUNCTIONS
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CDKALPHALIST *newCDKAlphalist (CDKSCREEN * \f2screen\f1, int \f2xpos\f1, int \f2ypos\f1, int \f2height\f1, int \f2width\f1, char *\f2title\f1, char *\f2label\f1, char **\f2list\f1, int \f2listSize\f1, chtype \f2fillerChar\f1, chtype \f2highlight\f1, boolean \f2box\f1, boolean \f2shadow\f1);
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.RS 3
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This function creates a pointer to an alphalist widget. The \f2screen\f1 parameter
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is the screen you wish this widget to be placed in. The parameter \f2xpos\f1
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controls the placement of the object along the horizontal axis. This parameter
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can take an integer value or one of the pre-defined values of \f4LEFT\f1,
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\f4RIGHT\f1, and \f4CENTER\f1. The parameter \f2ypos\f1 controls the placement
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of the object along the vertical axis. This parameter can accept an integer
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value or one of the pre-defined values of \f4TOP\f1, \f4BOTTOM\f1, and
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\f4CENTER\f1. The parameters \f2height\f1 and \f2width\f1 control the height
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and width of the widget. If you provide a value of zero for either of the height
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or the width, the widget will be created with the full width and height of the
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screen. If you provide a negative value, the widget will be created the full height
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or width minus the value provided. The \f2title\f1 parameter is the string which
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will be displayed at the top of the scrolling list. The title can be more than one
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line; just provide a carriage return character at the line break. The \f2label\f1
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parameter is the string which will be displayed in the label of the entry field.
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The parameter \f2list\f1 is the list of words which will be displayed in the
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scrolling list. This list does not have to be sorted, this widget automatically
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sorts the list. The parameter \f2listSize\f1 tells the widget how large the word
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list is. The field \f2fillerCharacter\f1 is the character which is to be displayed
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in an empty space in the entry field. The field \f2highlight\f1 is the attribute
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of the highlight bar in the scrolling list. The \f2box\f1 parameter states whether
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the widget will be drawn with a box around it or not. The \f2shadow\f1 parameter
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accepts a boolean value to turn the shadow on or off around this widget. If the
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widget could not be created then a \f4NULL\f1 pointer is returned.
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.RE
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char *activateCDKAlphalist (CDKALPHALIST *\f2alphalist\f1, chtype *\f2actions\f1);
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.RS 3
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This function activates the alphalist widget and lets the user interact with the
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widget. The parameter \f2alphalist\f1 is a pointer to a non-NULL alphalist
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widget. If the \f2actions\f1 parameter is passed with a non-NULL value, the
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characters in the array will be injected into the widget. To activate the widget
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interactively pass in a \f4NULL\f1 pointer for \f2actions\f1. If the character entered
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into this widget is \f4RETURN\f1 then this function will return a \f4char *\f1
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of the information which was typed in the field. If the \f4TAB\f1 character is hit
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then the widget will try to complete the word in the entry field. If the widget
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is exited with the \f4RETURN\f1 character then the structure member \f4exitType\f1
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will be set to \f4vNORMAL\f1. If the widget was exited with the \f4ESCAPE\f1 key
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then the structure member \f4exitType\f1 will be set to \f4vESCAPE_HIT\f1 and
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the widget returns \f4NULL\f1.
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.RE
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char *injectCDKAlphalist (CDKALPHALIST *\f2alphalist\f1, chtype \f2character\f1);
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.RS 3
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This function injects a single character into the widget. The parameter
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\f2alphalist\f1 is a pointer to a non-NULL alphalist widget. The parameter
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\f2character\f1 is the character to inject into the widget. If the character
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injected into this widget was \f4RETURN\f1 then the information in the entry
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field of this widget will be returned and the structure member \f4exitType\f1
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will be set to \f4vNORMAL\f1. If the character injected was \f4ESCAPE\f1 then
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the widget will exit, return a \f4NULL\f1 pointer, and set the structure member
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\f4exitType\f1 to \f4vESCAPE_HIT\f1. Any other character injected into the widget
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will set the structure member \f4exitType\f1 to a value of \f4vEARLY_EXIT\f1 and
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a \f4NULL\f1 pointer will be returned.
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.RE
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void setCDKAlphalist (CDKALPHALIST *\f2alphalist\f1, char **\f2list\f1, int \f2listSize\f1, chtype \f2fillerCharacter\f1, chtype \f2highlight\f1, boolean \f2box\f1);
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.RS 3
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This function lets the programmer modify certain elements of an already
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defined alphalist widget. The parameter names correspond to the same parameter
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names listed in the \f4newCDKAlphalist\f1 function.
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.RE
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void setCDKAlphalistContents (CDKALPHALIST *\f2alphalist\f1, char **\f2list\f1, int \f2listSize\f1);
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.RS 3
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This function sets the contents of the alphalist widget.
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.RE
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char **getCDKAlphalistContents (CDKALPHALIST *\f2alphalist\f1);
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.RS 3
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This function returns the contents of the alphalist.
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.RE
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void setCDKAlphalistFillerChar (CDKALPHALIST *\f2alphalist\f1, chtype \f2filler\f1);
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.RS 3
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This sets the character to use when drawing the entry field portion of the
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widget.
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.RE
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chtype getCDKAlphalistFillerChar (CDKALPHALIST *\f2alphalist\f1);
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.RS 3
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This returns the character being used as the filler character in the
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entry field portion of the widget.
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.RE
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void setCDKAlphalistHighlight (CDKALPHALIST *\f2alphalist\f1, chtype \f2highlight\f1);
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.RS 3
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This function sets the attribute of the highlight bar of the scrolling
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list portion of the widget.
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.RE
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chtype getCDKAlphalistHighlight (CDKALPHALIST *\f2alphalist\f1);
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.RS 3
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This returns the attribute of the highlight bar of the scrolling
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list portion of the widget.
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.RE
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void setCDKAlphalistBox (CDKALPHALIST *\f2alphalist\f1, boolean \f2boxWidget\f1);
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.RS 3
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This sets whether or not the widget will be draw with a box around it.
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.RE
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boolean getCDKAlphalistBox (CDKALPHALIST *\f2alphalist\f1);
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.RS 3
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This returns whether or not the widget will be drawn with a box around it.
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.RE
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void setCDKAlphalistULChar (CDKALPHALIST *\f2alphalist\f1, chtype \f2character\f1);
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.RS 3
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This function sets the upper left hand corner of the widgets box to
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the given character.
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.RE
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void setCDKAlphalistURChar (CDKALPHALIST *\f2alphalist\f1, chtype \f2character\f1);
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.RS 3
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This function sets the upper right hand corner of the widgets box to
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the given character.
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.RE
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void setCDKAlphalistLLChar (CDKALPHALIST *\f2alphalist\f1, chtype \f2character\f1);
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.RS 3
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This function sets the lower left hand corner of the widgets box to
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the given character.
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.RE
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void setCDKAlphalistLRChar (CDKALPHALIST *\f2alphalist\f1, chtype \f2character\f1);
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.RS 3
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This function sets the lower right hand corner of the widgets box to
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the given character.
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.RE
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void setCDKAlphalistVerticalChar (CDKALPHALIST *\f2alphalist\f1, chtype \f2character\f1);
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.RS 3
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This function sets the vertical drawing character for the box to
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the given character.
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.RE
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void setCDKAlphalistHorizontalChar (CDKALPHALIST *\f2alphalist\f1, chtype \f2character\f1);
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.RS 3
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This function sets the horizontal drawing character for the box to
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the given character.
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.RE
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void setCDKAlphalistBoxAttribute (CDKALPHALIST *\f2alphalist\f1, chtype \f2attribute\f1);
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.RS 3
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This function sets the attribute of the box.
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.RE
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void setCDKAlphalistBackgroundColor (CDKALPHALIST *\f2alphalist\f1, char *\f2color\f1);
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.RS 3
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This sets the background color of the widget. The parameter \f2color\f1
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is in the format of the Cdk format strings. To get more information look
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at the \f4cdk_display\f1 manual page.
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.RE
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void moveCDKAlphalist (CDKALPHALIST *\f2alphalist\f1, int \f2xpos\f1, int \f2ypos\f1, boolean \f2relative\f1, boolean \f2refresh\f1);
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.RS 3
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This function moves the given widget to the given position. The parameters
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\f2xpos\f1 and \f2ypos\f1 is the new position of the widget. The parameter
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\f2xpos\f1 can accept an integer value or one of the pre-defined values of
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\f4TOP\f1, \f4BOTTOM\f1, and \f4CENTER\f1. The parameter \f2ypos\f1 can
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accept an integer value or one of the pre-defined values of \f4LEFT\f1,
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\f4RIGHT\f1, and \f4CENTER\f1. The parameter \f2relative\f1 states whether
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the \f2xpos\f1/\f2ypos\f1 pair is a relative move or an absolute move. For
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example if \f2xpos\f1 = 1 and \f2ypos\f1 = 2 and \f2relative\f1 = \f2TRUE\f1,
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then the widget would move one row down and two columns right. If the value
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of \f2relative\f1 was \f2FALSE\f1 then the widget would move to the position
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(1,2). Do not use the values of \f4TOP\f1, \f4BOTTOM\f1, \f4LEFT\f1,
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\f4RIGHT\f1, or \f4CENTER\f1 when \f2relative\f1 = \f4TRUE\f1. (wierd
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things may happen). The final parameter \f2refresh\f1 is a boolean value
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which states whether the widget will get refreshed after the move or not.
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.RE
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void positionCDKAlphalist (CDKALPHALIST *\f2alphalist\f1);
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.RS 3
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This function allows the user to move the widget around the screen via the
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cursor/keypad keys. The following key bindings can be used to move the
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widget around the screen.
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.LP
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.nf
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\f4Key Bindings\f1
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.RS 3
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\f2Key Action\f1
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Up Arrow Moves the widget up one line.
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Down Arrow Moves the widget down one line.
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Left Arrow Moves the widget left one column
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Right Arrow Moves the widget right one column
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Keypad-1 Moves the widget down one line
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and left one column.
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Keypad-2 Moves the widget down one line.
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Keypad-3 Moves the widget down one line
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and right one column.
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Keypad-4 Moves the widget left one column
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Keypad-5 Centers the widget both vertically
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and horizontally.
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Keypad-6 Moves the widget right one column
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Keypad-7 Moves the widget up one line
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and left one column.
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Keypad-8 Moves the widget up one line.
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Keypad-9 Moves the widget up one line
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and right one column.
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t Moves the widget to the top of the screen.
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b Moves the widget to the bottom of the screen.
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l Moves the widget to the left of the screen.
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r Moves the widget to the right of the screen.
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c Centers the widget between the left and
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right of the window.
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C Centers the widget between the top and
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bottom of the window.
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Escape Returns the widget to it's original position.
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Return Exits the function and leaves the widget
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where it was.
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.fi
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.RE
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.RS 3
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.LP
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Keypad means that if the keyboard you are using has a keypad, then the
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Num-Lock light has to be on in order to use the keys as listed. (The
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numeric keys at the top of the keyboard will work as well.)
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.RE
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void drawCDKAlphalist (CDKALPHALIST *\f2alphalist\f1, boolean \f2box\f1);
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.RS 3
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This function draws the alphalist widget on the screen. The \f2box\f1 option
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draws the widget with or without a box.
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.RE
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void eraseCDKAlphalist (CDKALPHALIST *\f2alphalist\f1);
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.RS 3
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This function removes the widget from the screen. This does \f4NOT\f1 destroy
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the widget.
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.RE
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void destroyCDKAlphalist (CDKALPHALIST *\f2alphalist\f1);
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.RS 3
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This function removes the widget from the screen and frees up any memory the
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object may be using.
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.RE
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void setCDKAlphalistPreProcess (CDKALPHALIST *\f2alphalist\f1, PROCESSFN \f2function\f1, void *\f2data\f1);
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.RS 3
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This function allows the user to have the widget call a function after a key
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is hit and before the key is applied to the widget. The parameter \f2function\f1
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if of type \f4PROCESSFN\f1. The parameter \f2data\f1 is a pointer to
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\f4void\f1. To learn more about pre-processing read the \f4cdk_process\f1
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manual page.
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.RE
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void setCDKAlphalistPostProcess (CDKALPHALIST *\f2alphalist\f1, PROCESSFN \f2function\f1, void *\f2data\f1);
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.RS 3
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|
This function allows the user to have the widget call a function after the
|
|
key has been applied to the widget. The parameter \f2function\f1 if of type
|
|
\f4PROCESSFN\f1. The parameter \f2data\f1 is a pointer to \f4void\f1. To
|
|
learn more about post-processing read the \f4cdk_process\f1 manual page.
|
|
.RE
|
|
|
|
void bindCDKObject (EObjectType \f2widgetType\f1, void *\f2object\f1, char \f2key\f1, BINDFN \f2function\f1, void *\f2data\f1);
|
|
.RS 3
|
|
This function allows the user to create special key bindings. The
|
|
\f2widgetType\f1 parameter is a defined type which states what Cdk object
|
|
type is being used. To learn more about the type \f4EObjectType\f1 read
|
|
the \f2cdk_binding\f1 manual page. The \f2object\f1 parameter is the pointer
|
|
to the widget object. The \f2key\f1 is the character to bind. The
|
|
\f2function\f1 is the function type. To learn more about the key binding
|
|
call-back function types read the \f4cdk_binding\f1 manual page. The last
|
|
parameter \f2data\f1 is a pointer to any data that needs to get passed to
|
|
the call-back function.
|
|
.RE
|
|
|
|
.SH KEY BINDINGS
|
|
When the widget is activated there are several default key bindings which will
|
|
help the user enter or manipulate the information quickly. Since this widget is
|
|
built from both the scrolling list widget and the entry field widget, the key
|
|
bindings are the same for the respective fields. The extra key bindings are
|
|
listed below.
|
|
.LP
|
|
.nf
|
|
\f4Key Bindings\f1
|
|
.RS 3
|
|
\f2Key Action\f1
|
|
Up Arrow Scrolls the scrolling list up one line.
|
|
Down Arrow Scrolls the scrolling list down one line.
|
|
Page Up Scrolls the scrolling list up one page.
|
|
CTRL-B Scrolls the scrolling list up one page.
|
|
Page Down Scrolls the scrolling list down one page.
|
|
CTRL-F Scrolls the scrolling list down one page.
|
|
Tab Tries to complete the word in the entry field.
|
|
If the word segment is not unique then the
|
|
widget will beep and present a list of close
|
|
matches.
|
|
Return Returns the word in the entry field. It also
|
|
sets the structure member \f4exitType\f1 in
|
|
the widget pointer to the value of \f4vNORMAL\f1.
|
|
Escape Exits the widget and returns a \f4NULL\f1 pointer.
|
|
It also sets the structure member \f4exitType\f1
|
|
in the widget pointer to the value of \f4vESCAPE_HIT\f1.
|
|
.RE
|
|
|
|
.fi
|
|
.SH SEE ALSO
|
|
.BR cdk (3),
|
|
.BR cdk_binding (3),
|
|
.BR cdk_display (3),
|
|
.BR cdk_screen (3)
|
|
.SH NOTES
|
|
.PP
|
|
This widget is created from the scrolling list widget and the entry field
|
|
widget. This is a good example on how to build your own widgets using the
|
|
base widgets provided in this distribution.
|
|
.PP
|
|
The header file \f4<cdk.h>\f1 automatically includes the header files
|
|
\f4<curses.h>\f1, \f4<stdlib.h>\f1, \f4<string.h>\f1, \f4<ctype.h>\f1,
|
|
\f4<unistd.h>\f1, \f4<dirent.h>\f1, \f4<time.h>\f1, \f4<errno.h>\f1,
|
|
\f4<pwd.h>\f1, \f4<grp.h>\f1, \f4<sys/stat.h>\f1, and \f4<sys/types.h>\f1.
|
|
The \f4<curses.h>\f1 header file includes \f4<stdio.h>\f1 and \f4<unctrl.h>\f1.
|
|
.PP
|
|
If you have \f4Ncurses\f1 installed on your machine add -DNCURSES to the
|
|
compile line to include the Ncurses header files instead.
|