532 lines
14 KiB
Groff
532 lines
14 KiB
Groff
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'\" t
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.\" $Id: gen-slider.3,v 1.7 2016/12/11 00:57:12 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_<MODEL>slider 3
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.SH NAME
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.XX activateCDK<MIXED>
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.XX destroyCDK<MIXED>
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.XX drawCDK<MIXED>
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.XX eraseCDK<MIXED>
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.XX getCDK<MIXED>Box
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#if <FLOAT>
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.XX getCDK<MIXED>Digits
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#endif <FLOAT>
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.XX getCDK<MIXED>HighValue
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.XX getCDK<MIXED>LowValue
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.XX getCDK<MIXED>Value
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.XX injectCDK<MIXED>
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.XX moveCDK<MIXED>
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.XX newCDK<MIXED>
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.XX positionCDK<MIXED>
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.XX setCDK<MIXED>
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.XX setCDK<MIXED>BackgroundAttrib
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.XX setCDK<MIXED>BackgroundColor
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.XX setCDK<MIXED>Box
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.XX setCDK<MIXED>BoxAttribute
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#if <FLOAT>
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.XX setCDK<MIXED>Digits
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#endif <FLOAT>
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.XX setCDK<MIXED>HorizontalChar
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.XX setCDK<MIXED>LLChar
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.XX setCDK<MIXED>LRChar
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.XX setCDK<MIXED>LowHigh
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.XX setCDK<MIXED>PostProcess
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.XX setCDK<MIXED>PreProcess
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.XX setCDK<MIXED>ULChar
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.XX setCDK<MIXED>URChar
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.XX setCDK<MIXED>Value
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.XX setCDK<MIXED>VerticalChar
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cdk_<MODEL>slider \- curses slider widget (type <CTYPE>)
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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 "int activateCDK<MIXED> ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype *" "actions");
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.TP 15
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.B "void destroyCDK<MIXED> ("
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.BI "CDK<UPPER> *" "slider");
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.TP 15
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.B "void drawCDK<MIXED> ("
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.BI "CDK<UPPER> *" "slider",
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.BI "boolean " "box");
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.TP 15
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.B "void eraseCDK<MIXED> ("
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.BI "CDK<UPPER> *" "slider");
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.TP 15
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.B "boolean getCDK<MIXED>Box ("
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.BI "CDK<UPPER> *" "slider");
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#if <FLOAT>
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.TP 15
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.B "int getCDK<MIXED>Digits ("
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.BI "CDK<UPPER> *" "scale");
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#endif <FLOAT>
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.TP 15
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.B "<CTYPE> getCDK<MIXED>HighValue ("
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.BI "CDK<UPPER> *" "slider");
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.TP 15
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.B "<CTYPE> getCDK<MIXED>LowValue ("
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.BI "CDK<UPPER> *" "slider");
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.TP 15
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.B "<CTYPE> getCDK<MIXED>Value ("
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.BI "CDK<UPPER> *" "slider");
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.TP 15
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.B "<CTYPE> injectCDK<MIXED> ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype " "input");
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.TP 15
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.B "void moveCDK<MIXED> ("
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.BI "CDK<UPPER> *" "slider",
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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 "CDK<UPPER> *newCDK<MIXED> ("
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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 "const char *" "title",
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.BI "const char *" "label",
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.BI "chtype " "fillerCharacter",
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.BI "int " "fieldWidth",
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.BI "int " "currentValue",
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.BI "<CTYPE> " "lowValue",
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.BI "<CTYPE> " "highValue",
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.BI "<CTYPE> " "increment",
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.BI "<CTYPE> " "fastIncrement",
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#if <FLOAT>
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.BI "int " "digits",
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#endif <FLOAT>
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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 positionCDK<MIXED> ("
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.BI "CDK<UPPER> *" "slider");
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.TP 15
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.B "void setCDK<MIXED> ("
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.BI "CDK<UPPER> *" "slider",
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.BI "<CTYPE> " "lowValue",
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.BI "<CTYPE> " "highValue",
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.BI "<CTYPE> " "currentValue",
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.BI "boolean " "box");
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.TP 15
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.B "void setCDK<MIXED>BackgroundAttrib ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype " "attribute");
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.TP 15
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.B "void setCDK<MIXED>BackgroundColor ("
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.BI "CDK<UPPER> *" "slider",
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.BI "const char * " "color");
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.TP 15
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.B "void setCDK<MIXED>Box ("
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.BI "CDK<UPPER> *" "slider",
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.BI "boolean " "boxWidget");
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.TP 15
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.B "void setCDK<MIXED>BoxAttribute ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype " "character");
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#if <FLOAT>
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.TP 15
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.B "void setCDK<MIXED>Digits ("
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.BI "CDK<UPPER> *" "scale",
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.BI "int " "digits");
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#endif <FLOAT>
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.TP 15
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.B "void setCDK<MIXED>HorizontalChar ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDK<MIXED>LLChar ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDK<MIXED>LRChar ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDK<MIXED>LowHigh ("
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.BI "CDK<UPPER> *" "slider",
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.BI "<CTYPE> " "lowValue",
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.BI "<CTYPE> " "highValue");
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.TP 15
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.B "void setCDK<MIXED>PostProcess ("
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.BI "CDK<UPPER> *" "slider",
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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 setCDK<MIXED>PreProcess ("
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.BI "CDK<UPPER> *" "slider",
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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 setCDK<MIXED>ULChar ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDK<MIXED>URChar ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype " "character");
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.TP 15
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.B "void setCDK<MIXED>Value ("
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.BI "CDK<UPPER> *" "slider",
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.BI "<CTYPE> " "value");
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.TP 15
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.B "void setCDK<MIXED>VerticalChar ("
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.BI "CDK<UPPER> *" "slider",
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.BI "chtype " "character");
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.fi
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.SH DESCRIPTION
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The Cdk slider widget creates a visual slider box with a label and a slider field.
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The following are functions which create or manipulate the Cdk slider
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box widget.
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.SH AVAILABLE FUNCTIONS
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.TP 5
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.B activateCDK<MIXED>
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activates the slider 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 \fBslider\fR is a pointer to a non-NULL slider widget.
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.bP
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If the \fBactions\fR parameter is passed with a non-NULL value, the characters
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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 or \fITAB\fR then this function will return a
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value from the low value to the high value.
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It will also set the widget data \fIexitType\fR to \fIvNORMAL\fR.
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.IP
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If the character entered into this
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widget was \fIESCAPE\fR then the widget returns
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the unknown<DTYPE> value (see the cdk_objs.h header file).
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The widget data \fIexitType\fR is set to \fIvESCAPE_HIT\fR.
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.TP 5
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.B destroyCDK<MIXED>
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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 drawCDK<MIXED>
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draws the slider widget on the screen.
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If the \fBbox\fR option is true, the widget is drawn with a box.
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.TP 5
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.B eraseCDK<MIXED>
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removes the widget from the screen.
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This does \fINOT\fR destroy the widget.
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.TP 5
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.B getCDK<MIXED>Box
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returns true if the widget will be drawn with a box around it.
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#if <FLOAT>
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.TP 5
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.B getCDK<MIXED>Digits
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returns the number of digits shown after the decimal point for the box value.
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#endif <FLOAT>
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.TP 5
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.B getCDK<MIXED>HighValue
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returns the high value of the slider widget.
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.TP 5
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.B getCDK<MIXED>LowValue
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returns the low value of the slider widget.
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.TP 5
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.B getCDK<MIXED>Value
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returns the current value of the widget.
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.TP 5
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.B injectCDK<MIXED>
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injects a single character into the widget.
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.RS
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.bP
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The parameter \fBslider\fR is a pointer to a non-NULL slider 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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.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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a value ranging from the slider's low value to the slider's high value.
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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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the unknown<DTYPE> value (see the cdk_objs.h header file).
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The widget data \fIexitType\fR is set to \fIvESCAPE_HIT\fR.
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.RE
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.RE
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.IP
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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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the unknown<DTYPE> value (see the cdk_objs.h header file).
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The widget data \fIexitType\fR is set to \fIvEARLY_EXIT\fR.
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.TP 5
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.B moveCDK<MIXED>
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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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.bP
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The final parameter \fBrefresh\fR is a boolean value which
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states whether the widget will get refreshed after the move.
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.RE
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.TP 5
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.B newCDK<MIXED>
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function creates a slider widget and returns a pointer to it..
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Parameters:
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.RS
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.TP 5
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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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.TP 5
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\fBxpos\fR
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controls the placement of the object along the horizontal axis.
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It may be an integer or one of the pre-defined values
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\fILEFT\fR, \fIRIGHT\fR, and \fICENTER\fR.
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.TP 5
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\fBypos\fR
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controls the placement of the object along the vertical axis.
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It 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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.TP 5
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\fBtitle\fR
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is the string to display at the top of the widget.
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The title can be more than one line; just provide a carriage return
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character at the line break.
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.TP 5
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\fBlabel\fR
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is the string to display in the label of the slider field.
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.TP 5
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\fBfillerCharacter\fR
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is the character to be used to draw the slider bar in the field.
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.TP 5
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\fBfieldWidth\fR
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controls the width of the widget.
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If you provide a value
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of zero the widget will be created with the full width of the screen.
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If you provide a negative value, the widget will be created the full width
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minus the value provided.
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.TP 5
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\fBcurrentValue\fR
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is the value of the slider field when the widget is activated.
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.TP 5
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\fBlowValue\fR and
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.TP 5
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\fBhighValue\fR
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are the low and high values of the widget respectively.
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.TP 5
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\fBincrement\fR
|
||
|
|
is the regular increment value
|
||
|
|
.TP 5
|
||
|
|
\fBfastIncrement\fR
|
||
|
|
is the accelerated increment value.
|
||
|
|
.TP 5
|
||
|
|
\fBbox\fR
|
||
|
|
is true if the widget should be drawn with a box around it.
|
||
|
|
.TP 5
|
||
|
|
\fBshadow\fR
|
||
|
|
turns the shadow on or off around this widget.
|
||
|
|
.RE
|
||
|
|
.IP
|
||
|
|
If the widget could not be created then a \fINULL\fR pointer is returned.
|
||
|
|
.TP 5
|
||
|
|
.B positionCDK<MIXED>
|
||
|
|
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 setCDK<MIXED>
|
||
|
|
lets the programmer modify certain elements of an existing slider widget.
|
||
|
|
The parameter names correspond to the same parameter
|
||
|
|
names listed in the \fInewCDK<MIXED>\fR function.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>BackgroundAttrib
|
||
|
|
sets the background attribute of the widget.
|
||
|
|
.IP
|
||
|
|
The parameter \fBattribute\fR is a curses attribute, e.g., A_BOLD.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>BackgroundColor
|
||
|
|
sets the background color of the widget.
|
||
|
|
.IP
|
||
|
|
The parameter \fBcolor\fR is in the format of the Cdk format strings.
|
||
|
|
.IP
|
||
|
|
See \fBcdk_display (3)\fR.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>Box
|
||
|
|
sets whether the widget will be drawn with a box around it.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>BoxAttribute
|
||
|
|
function sets the attribute of the box.
|
||
|
|
#if <FLOAT>
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>Digits
|
||
|
|
sets the number of digits shown after the decimal point for the box value.
|
||
|
|
#endif <FLOAT>
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>HorizontalChar
|
||
|
|
sets the horizontal drawing character for the box to the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>LLChar
|
||
|
|
sets the lower left hand corner of the widget's box to the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>LRChar
|
||
|
|
sets the lower right hand corner of the widget's box to the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>LowHigh
|
||
|
|
sets the low and high values of the widget.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>PostProcess
|
||
|
|
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 setCDK<MIXED>PreProcess
|
||
|
|
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 setCDK<MIXED>ULChar
|
||
|
|
sets the upper left hand corner of the widget's box to the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>URChar
|
||
|
|
sets the upper right hand corner of the widget's box to the given character.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>Value
|
||
|
|
sets the current value of the widget.
|
||
|
|
.TP 5
|
||
|
|
.B setCDK<MIXED>VerticalChar
|
||
|
|
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.
|
||
|
|
The following table
|
||
|
|
outlines the keys and their actions for this widget.
|
||
|
|
.LP
|
||
|
|
.TS
|
||
|
|
center tab(/) box;
|
||
|
|
l l
|
||
|
|
l l
|
||
|
|
lw15 lw50 .
|
||
|
|
\fBKey/Action\fR
|
||
|
|
=
|
||
|
|
Down Arrow/T{
|
||
|
|
Decrements the field by the normal decrement value.
|
||
|
|
T}
|
||
|
|
Up Arrow/T{
|
||
|
|
Increments the field by the normal increment value.
|
||
|
|
T}
|
||
|
|
u/T{
|
||
|
|
Increments the field by the normal increment value.
|
||
|
|
T}
|
||
|
|
Prev Page/T{
|
||
|
|
Decrements the field by the accelerated decrement value.
|
||
|
|
T}
|
||
|
|
U/T{
|
||
|
|
Decrements the field by the accelerated decrement value.
|
||
|
|
T}
|
||
|
|
Ctrl-B/T{
|
||
|
|
Decrements the field by the accelerated decrement value.
|
||
|
|
T}
|
||
|
|
Next Page/T{
|
||
|
|
Increments the field by the accelerated increment value.
|
||
|
|
T}
|
||
|
|
D/T{
|
||
|
|
Increments the field by the accelerated increment value.
|
||
|
|
T}
|
||
|
|
Ctrl-F/T{
|
||
|
|
Increments the field by the accelerated increment value.
|
||
|
|
T}
|
||
|
|
Home/Sets the value to the low value.
|
||
|
|
g/Sets the value to the low value.
|
||
|
|
End/Sets the value to the high value.
|
||
|
|
G/Sets the value to the high value.
|
||
|
|
$/Sets the value to the high value.
|
||
|
|
Return/T{
|
||
|
|
Exits the widget and returns the
|
||
|
|
current value.
|
||
|
|
This also sets the widget data \fIexitType\fR to \fIvNORMAL\fR.
|
||
|
|
T}
|
||
|
|
Tab/T{
|
||
|
|
Exits the widget and returns the current value.
|
||
|
|
This also sets the widget data \fIexitType\fR to \fIvNORMAL\fR.
|
||
|
|
T}
|
||
|
|
Escape/T{
|
||
|
|
Exits the widget and returns
|
||
|
|
the unknown<DTYPE> value (see the cdk_objs.h header file).
|
||
|
|
This also sets the widget data \fIexitType\fR to \fIvESCAPE_HIT\fR.
|
||
|
|
T}
|
||
|
|
Ctrl-R/Refreshes the screen.
|
||
|
|
.TE
|
||
|
|
.LP
|
||
|
|
If the cursor is not pointing to the field's value, the following
|
||
|
|
key bindings apply. You may use the left/right arrows to move the
|
||
|
|
cursor onto the field's value and modify it by typing characters to
|
||
|
|
replace the digits and sign.
|
||
|
|
.TS
|
||
|
|
center tab(/) box;
|
||
|
|
l l
|
||
|
|
l l
|
||
|
|
lw15 lw50 .
|
||
|
|
\fBKey/Action\fR
|
||
|
|
=
|
||
|
|
Left Arrow/T{
|
||
|
|
Decrements the scale by the normal value.
|
||
|
|
T}
|
||
|
|
Right Arrow/Increments the scale by the normal value.
|
||
|
|
=
|
||
|
|
d/Decrements the scale by the normal value.
|
||
|
|
D/Increments the scale by the accelerated value.
|
||
|
|
-/Decrements the scale by the normal value.
|
||
|
|
+/Increments the scale by the normal value.
|
||
|
|
0/Sets the scale to the low value.
|
||
|
|
.TE
|
||
|
|
.SH SEE ALSO
|
||
|
|
.BR cdk (3),
|
||
|
|
.BR cdk_binding (3),
|
||
|
|
.BR cdk_display (3),
|
||
|
|
.BR cdk_position (3),
|
||
|
|
.BR cdk_screen (3)
|