516 lines
14 KiB
Groff
516 lines
14 KiB
Groff
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'\" t
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.\" $Id: cdk_alphalist.3,v 1.28 2016/12/11 01:59:33 tom Exp $"
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.de bP
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.IP \(bu 4
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..
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.de XX
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..
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.TH cdk_alphalist 3
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.SH NAME
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.XX activateCDKAlphalist
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.XX destroyCDKAlphalist
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.XX drawCDKAlphalist
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.XX eraseCDKAlphalist
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.XX getCDKAlphalistBox
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.XX getCDKAlphalistContents
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.XX getCDKAlphalistCurrentItem
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.XX getCDKAlphalistFillerChar
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.XX getCDKAlphalistHighlight
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.XX injectCDKAlphalist
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.XX moveCDKAlphalist
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.XX newCDKAlphalist
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.XX positionCDKAlphalist
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.XX setCDKAlphalist
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.XX setCDKAlphalistBackgroundAttrib
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.XX setCDKAlphalistBackgroundColor
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.XX setCDKAlphalistBox
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.XX setCDKAlphalistBoxAttribute
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.XX setCDKAlphalistContents
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.XX setCDKAlphalistCurrentItem
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.XX setCDKAlphalistFillerChar
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.XX setCDKAlphalistHighlight
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.XX setCDKAlphalistHorizontalChar
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.XX setCDKAlphalistLLChar
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.XX setCDKAlphalistLRChar
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.XX setCDKAlphalistPostProcess
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.XX setCDKAlphalistPreProcess
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.XX setCDKAlphalistULChar
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.XX setCDKAlphalistURChar
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.XX setCDKAlphalistVerticalChar
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cdk_alphalist \- curses sorted 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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.nf
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.TP 15
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.B "char *activateCDKAlphalist ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype *" "actions");
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.TP 15
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.B "void destroyCDKAlphalist ("
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.BI "CDKALPHALIST *" "alphalist");
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.TP 15
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.B "void drawCDKAlphalist ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "boolean " "box");
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.TP 15
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.B "void eraseCDKAlphalist ("
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.BI "CDKALPHALIST *" "alphalist");
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.TP 15
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.B "boolean getCDKAlphalistBox ("
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.BI "CDKALPHALIST *" "alphalist");
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.TP 15
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.B "char **getCDKAlphalistContents ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "int *" "size");
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.TP 15
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.B "int getCDKAlphalistCurrentItem ("
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.BI "CDKALPHALIST *" "widget");
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.TP 15
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.B "chtype getCDKAlphalistFillerChar ("
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.BI "CDKALPHALIST *" "alphalist");
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.TP 15
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.B "chtype getCDKAlphalistHighlight ("
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.BI "CDKALPHALIST *" "alphalist");
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.TP 15
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.B "char *injectCDKAlphalist ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "input");
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.TP 15
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.B "void moveCDKAlphalist ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "int " "xpos",
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.BI "int " "ypos",
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.BI "boolean " "relative",
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.BI "boolean " "refresh");
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.TP 15
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.B "CDKALPHALIST *newCDKAlphalist ("
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.BI "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 "const char * " "title",
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.BI "const char * " "label",
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.BI "CDK_CONST 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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.TP 15
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.B "void positionCDKAlphalist ("
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.BI "CDKALPHALIST *" "alphalist");
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.TP 15
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.B "void setCDKAlphalist ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "CDK_CONST 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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.TP 15
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.B "void setCDKAlphalistBackgroundAttrib ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "attribute");
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.TP 15
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.B "void setCDKAlphalistBackgroundColor ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "const char * " "color");
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.TP 15
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.B "void setCDKAlphalistBox ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "boolean " "box");
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.TP 15
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.B "void setCDKAlphalistBoxAttribute ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDKAlphalistContents ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "CDK_CONST char ** " "list",
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.BI "int " "listSize");
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.TP 15
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.B "void setCDKAlphalistCurrentItem ("
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.BI "CDKALPHALIST *" "widget",
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.BI "int " "item");
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.TP 15
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.B "void setCDKAlphalistFillerChar ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "fillerCharacter");
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.TP 15
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.B "void setCDKAlphalistHighlight ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "highlight");
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.TP 15
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.B "void setCDKAlphalistHorizontalChar ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDKAlphalistLLChar ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDKAlphalistLRChar ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDKAlphalistPostProcess ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "PROCESSFN " "callback",
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.BI "void * " "data");
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.TP 15
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.B "void setCDKAlphalistPreProcess ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "PROCESSFN " "callback",
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.BI "void * " "data");
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.TP 15
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.B "void setCDKAlphalistULChar ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDKAlphalistURChar ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDKAlphalistVerticalChar ("
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.BI "CDKALPHALIST *" "alphalist",
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.BI "chtype " "character");
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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.
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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.
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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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.TP 5
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.B activateCDKAlphalist
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activates the alphalist widget and lets the user interact with the widget.
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.RS
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.bP
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The parameter \fBalphalist\fR is a pointer to a non-NULL alphalist widget.
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.bP
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If the \fBactions\fR parameter is passed with a non-NULL value, the
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characters in the array will be injected into the widget.
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.IP
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To activate the widget
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interactively pass in a \fINULL\fR pointer for \fBactions\fR.
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.RE
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.IP
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If the character entered
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into this widget is \fIRETURN\fR then this function will return a \fIchar *\fR
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of the information which was typed in the field.
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.IP
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If the \fITAB\fR character is hit
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then the widget will try to complete the word in the entry field.
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.IP
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If the widget
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is exited with the \fIRETURN\fR character then the widget data \fIexitType\fR
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will be set to \fIvNORMAL\fR.
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.IP
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If the widget was exited with the \fIESCAPE\fR key
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then the widget data \fIexitType\fR will be set to \fIvESCAPE_HIT\fR and
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the widget returns \fINULL\fR.
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.TP 5
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.B destroyCDKAlphalist
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removes the widget from the screen and frees memory the object used.
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.TP 5
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.B drawCDKAlphalist
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draws the alphalist widget on the screen.
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.IP
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If the \fBbox\fR parameter is true, the widget is drawn with a box.
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.TP 5
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.B eraseCDKAlphalist
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removes the widget from the screen.
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This does \fINOT\fR destroy
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the widget.
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.TP 5
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.B getCDKAlphalistBox
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returns true if the widget will be drawn with a box around it.
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.TP 5
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.B getCDKAlphalistContents
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returns the contents of the alphalist.
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.TP 5
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.B getCDKAlphalistCurrentItem
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returns the current position in the scroll-widget.
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.TP 5
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.B getCDKAlphalistFillerChar
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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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.TP 5
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.B getCDKAlphalistHighlight
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returns the attribute of the highlight bar of the scrolling
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list portion of the widget.
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.TP 5
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.B injectCDKAlphalist
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injects a single character into the widget (actually the entry widget).
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.RS
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.bP
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The parameter \fBalphalist\fR is a pointer to a non-NULL alphalist widget.
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.bP
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The parameter \fBcharacter\fR is the character to inject into the widget.
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.RE
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.IP
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The return value and side-effect (setting the widget data \fIexitType\fP)
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depend upon the injected character:
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.RS
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.TP
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\fIRETURN\fP or \fITAB\fR
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the function returns
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the information in the entry field.
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The widget data \fIexitType\fR is set to \fIvNORMAL\fR.
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.TP
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\fIESCAPE\fP
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the function returns
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a \fINULL\fR pointer.
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The widget data \fIexitType\fR is set to \fIvESCAPE_HIT\fR.
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.TP
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Otherwise
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unless modified by preprocessing, postprocessing or key bindings,
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the function returns
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a \fINULL\fR pointer.
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The widget data \fIexitType\fR is set to \fIvEARLY_EXIT\fR.
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.RE
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.TP 5
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.B moveCDKAlphalist
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moves the given widget to the given position.
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.RS
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.bP
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The parameters \fBxpos\fR and \fBypos\fR are the new position of the widget.
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.IP
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The parameter \fBxpos\fR may be an integer or one of the pre-defined values
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\fITOP\fR, \fIBOTTOM\fR, and \fICENTER\fR.
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.IP
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The parameter \fBypos\fR may be an integer or one of the pre-defined values \fILEFT\fR,
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\fIRIGHT\fR, and \fICENTER\fR.
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.bP
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The parameter \fBrelative\fR states whether
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the \fBxpos\fR/\fBypos\fR pair is a relative move or an absolute move.
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.IP
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For example, if \fBxpos\fR = 1 and \fBypos\fR = 2 and \fBrelative\fR = \fBTRUE\fR,
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then the widget would move one row down and two columns right.
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If the value of \fBrelative\fR was \fBFALSE\fR then the widget would move to the position (1,2).
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.IP
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Do not use the values \fITOP\fR, \fIBOTTOM\fR, \fILEFT\fR,
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\fIRIGHT\fR, or \fICENTER\fR when \fBrelative\fR = \fITRUE\fR.
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(weird things may happen).
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The final parameter \fBrefresh\fR is a boolean value
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which states whether the widget will get refreshed after the move.
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.TP 5
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.B newCDKAlphalist
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creates a pointer to an alphalist widget.
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Parameters:
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.RS
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.bP
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\fBscreen\fR
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is the screen you wish this widget to be placed in.
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.bP
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\fBxpos\fR
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controls the placement of the object along the horizontal axis.
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This parameter
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can take an integer or one of the pre-defined values \fILEFT\fR,
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\fIRIGHT\fR, and \fICENTER\fR.
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.bP
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\fBypos\fR
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controls the placement
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of the object along the vertical axis.
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This parameter may be an integer
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value or one of the pre-defined values \fITOP\fR, \fIBOTTOM\fR, and \fICENTER\fR.
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.bP
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\fBheight\fR and
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\fBwidth\fR
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control the height and width of the widget.
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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 screen.
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If you provide a negative value, the widget will be created the full height
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or width minus the value provided.
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.bP
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\fBtitle\fR
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is the string which will be displayed at the top of the scrolling list.
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The title can be more than one
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line; just provide a carriage return character at the line break.
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.bP
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\fBlabel\fR
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is the string which will be displayed in the label of the entry field.
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.bP
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\fBlist\fR
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is the list of words which will be displayed in the
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scrolling list.
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This list does not have to be sorted, this widget automatically
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sorts the list
|
||
|
|
(note that it modifies the caller's copy of the list to do this).
|
||
|
|
.bP
|
||
|
|
\fBlistSize\fR
|
||
|
|
tells the widget how large the word list is.
|
||
|
|
.bP
|
||
|
|
\fBfillerCharacter\fR
|
||
|
|
is the character which is to be displayed in an empty space in the entry field.
|
||
|
|
.bP
|
||
|
|
\fBhighlight\fR
|
||
|
|
is the attribute of the highlight bar in the scrolling list.
|
||
|
|
.bP
|
||
|
|
\fBbox\fR
|
||
|
|
is true if the widget should be drawn with a box around it.
|
||
|
|
.bP
|
||
|
|
\fBshadow\fR
|
||
|
|
is true to turn the shadow on around this widget.
|
||
|
|
.RE
|
||
|
|
.IP
|
||
|
|
If the
|
||
|
|
widget could not be created then a \fINULL\fR pointer is returned.
|
||
|
|
.TP 5
|
||
|
|
.B positionCDKAlphalist
|
||
|
|
allows the user to move the widget around the screen via the cursor/keypad keys.
|
||
|
|
See \fBcdk_position (3)\fR for key bindings.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalist
|
||
|
|
lets the programmer modify certain elements of an existing alphalist widget.
|
||
|
|
.IP
|
||
|
|
The parameter names correspond to the same parameter
|
||
|
|
names listed in the \fBnewCDKAlphalist\fR function.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistBackgroundAttrib
|
||
|
|
sets the background attribute of the widget.
|
||
|
|
.IP
|
||
|
|
The parameter \fBattribute\fR is a curses attribute, e.g., A_BOLD.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistBackgroundColor
|
||
|
|
sets the background color of the widget.
|
||
|
|
.IP
|
||
|
|
The parameter \fBcolor\fR
|
||
|
|
is in the format of the Cdk format strings.
|
||
|
|
See \fBcdk_display (3)\fR.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistBox
|
||
|
|
sets whether the widget will be drawn with a box around it.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistBoxAttribute
|
||
|
|
sets the attribute of the box.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistContents
|
||
|
|
sets the contents of the alphalist widget
|
||
|
|
(note that it sorts the caller's copy of the list).
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistCurrentItem
|
||
|
|
set the current position in the scroll-widget.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistFillerChar
|
||
|
|
sets the character to use when drawing the entry field portion of the widget.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistHighlight
|
||
|
|
sets the attribute of the highlight bar of the scrolling
|
||
|
|
list portion of the widget.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistHorizontalChar
|
||
|
|
sets the horizontal drawing character for the box to
|
||
|
|
the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistLLChar
|
||
|
|
sets the lower left hand corner of the widget's box to
|
||
|
|
the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistLRChar
|
||
|
|
sets the lower right hand corner of the widget's box to
|
||
|
|
the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistPostProcess
|
||
|
|
allows the user to have the widget call a function after the
|
||
|
|
key has been applied to the widget.
|
||
|
|
.RS
|
||
|
|
.bP
|
||
|
|
The parameter \fBfunction\fR is the callback function.
|
||
|
|
.bP
|
||
|
|
The parameter \fBdata\fR points to data passed to the callback function.
|
||
|
|
.RE
|
||
|
|
.IP
|
||
|
|
To learn more about post-processing see \fIcdk_process (3)\fR.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistPreProcess
|
||
|
|
allows the user to have the widget call a function after a key
|
||
|
|
is hit and before the key is applied to the widget.
|
||
|
|
.RS
|
||
|
|
.bP
|
||
|
|
The parameter \fBfunction\fR is the callback function.
|
||
|
|
.bP
|
||
|
|
The parameter \fBdata\fR points to data passed to the callback function.
|
||
|
|
.RE
|
||
|
|
.IP
|
||
|
|
To learn more about pre-processing see \fIcdk_process (3)\fR.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistULChar
|
||
|
|
sets the upper left hand corner of the widget's box to
|
||
|
|
the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistURChar
|
||
|
|
sets the upper right hand corner of the widget's box to
|
||
|
|
the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDKAlphalistVerticalChar
|
||
|
|
sets the vertical drawing character for the box to
|
||
|
|
the given character.
|
||
|
|
.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
|
||
|
|
.TS
|
||
|
|
center tab(/) allbox;
|
||
|
|
l l
|
||
|
|
l l
|
||
|
|
lw15 lw35 .
|
||
|
|
\fBKey/Action\fR
|
||
|
|
=
|
||
|
|
Up Arrow/T{
|
||
|
|
Scrolls the scrolling list up one line.
|
||
|
|
T}
|
||
|
|
Down Arrow/T{
|
||
|
|
Scrolls the scrolling list down one line.
|
||
|
|
T}
|
||
|
|
Page Up/T{
|
||
|
|
Scrolls the scrolling list up one page.
|
||
|
|
T}
|
||
|
|
CTRL-B/T{
|
||
|
|
Scrolls the scrolling list up one page.
|
||
|
|
Page Down/Scrolls the scrolling list down one page.
|
||
|
|
T}
|
||
|
|
CTRL-F/T{
|
||
|
|
Scrolls the scrolling list down one page.
|
||
|
|
T}
|
||
|
|
Tab/T{
|
||
|
|
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.
|
||
|
|
T}
|
||
|
|
Return/T{
|
||
|
|
Returns the word in the entry field.
|
||
|
|
It also sets the widget data \fIexitType\fR to \fIvNORMAL\fR.
|
||
|
|
T}
|
||
|
|
Escape/T{
|
||
|
|
Exits the widget and returns a \fINULL\fR pointer.
|
||
|
|
It also sets the widget data \fIexitType\fR to \fIvESCAPE_HIT\fR.
|
||
|
|
T}
|
||
|
|
.TE
|
||
|
|
.SH SEE ALSO
|
||
|
|
.BR cdk (3),
|
||
|
|
.BR cdk_binding (3),
|
||
|
|
.BR cdk_display (3),
|
||
|
|
.BR cdk_position (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.
|