137 lines
4.5 KiB
Groff
137 lines
4.5 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_screen 3 "05 Dec 1995"
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.SH NAME
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initCDKScreen, initCDKColor, registerCDKObject, unregisterCDKObject,
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raiseCDKObject, lowerCDKObject, refreshCDKScreen, eraseCDKScreen,
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destroyCDKScreen, endCDK - Cdk Screen and Widget Manipulation Functions
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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 "CDKSCREEN *initCDKScreen (WINDOW *" "cursesWindow ");
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.LP
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.BI "void initCDKColor ()";
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.LP
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.BI "void registerCDKObject (CDKSCREEN *" "screen ",
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.BI "EObjectType " "widgetType ",
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.BI "void *" "object");
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.LP
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.BI "void unregisterCDKObject(EObjectType " "widgetType ",
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.BI "void *" "object");
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.LP
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.BI "void raiseCDKObject(EObjectType " "widgetType ",
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.BI "void *" "object");
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.LP
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.BI "void lowerCDKObject(EObjectType " "widgetType ",
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.BI "void *" "object");
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.LP
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.BI "void refreshCDKScreen(CDKSCREEN *" "screen");
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.LP
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.BI "void eraseCDKScreen(CDKSCREEN *" "screen");
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.LP
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.BI "void destroyCDKScreen(CDKSCREEN *" "screen");
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.LP
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.BI "void endCDK()";
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.LP
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.SH DESCRIPTION
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One of the features of Cdk is that it will manage all of the widgets for you.
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These functions perform some of the management of the widgets in a screen. The
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following outline each function and its purpose.
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.SH AVAILABLE FUNCTIONS
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CDKSCREEN *initCDKScreen (WINDOW *\f2cursesWindow\f1);
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.RS 3
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This function takes a \f4WINDOW *\f1 (\f2cursesWindow\f1) and returns a
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pointer to a \f4CDKSCREEN *\f1. Since all of the widgets take a
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\f4CDKSCREEN\f1 pointer as a first argument, this is also one of the first
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calls made. This also starts curses, so no curses initialization calls have
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to be made when using Cdk.
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.RE
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void initCDKColor ();
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.RS 3
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This call starts the Cdk color capabilities. It defines 64 color pairs each
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of which is accessible using the COLOR_PAIR macro. If you do not have color
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support, this function call makes no difference.
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.RE
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void registerCDKObject (CDKSCREEN *\f2screen\f1, EObjectType \f2widgetType\f1, void *\f2object\f1);
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.RS 3
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This function is called automatically when a widget is created. If for some
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reason an object does get unregistered, by calling \f4unregisterCDKObject\f1,
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the widget can be registered again by calling this function. The
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\f2widgetType\f1 parameter states what Cdk widget type this object is. The
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\f2object\f1 parameter is a void pointer to the object.
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.RE
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void unregisterCDKObject (EObjectType \f2cdktype\f1, void *\f2object\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 object, it removes the widget from any further refreshes by the function
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\f4refreshCDKScreen\f1. The \f2widgetType\f1 parameter states what Cdk widget
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type this object is. The \f2object\f1 parameter is a void pointer to the
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object.
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.RE
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void raiseCDKObject (EObjectType \f2cdktype\f1, void *\f2object\f1);
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.RS 3
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This function raises the widget to the top of the screen. If there are any
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widgets which overlap the given object when a refresh is done, calling this
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function has the effect of raiding the object so no other widgets obstruct
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it. The \f2widgetType\f1 parameter states what Cdk widget type this object is.
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The \f2object\f1 parameter is a void pointer to the object.
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.RE
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void lowerCDKObject (EObjectType \f2cdktype\f1, void *\f2object\f1);
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.RS
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This function has the opposite effect of the \f4raiseCDKObject\f1 function
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call.
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.RE
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void refreshCDKScreen (CDKSCREEN *\f2screen\f1);
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.RS 3
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This function redraws all of the widgets which are currently associated to the
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given screen.
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.RE
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void eraseCDKScreen (CDKSCREEN *\f2screen\f1);
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.RS 3
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This function erases all of the widgets which are currently associated to the
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given screen. This does \f4NOT\f1 destroy the widgets.
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.RE
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void destroyCDKScreen (CDKSCREEN *\f2screen\f1);
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.RS 3
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This function destroys any memory allocated by the Cdk screen pointer.
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.RE
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void endCDK();
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.RS 3
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This function cleans up any memory created by starting Cdk and shuts down
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curses.
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.RE
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.SH SEE ALSO
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.BR cdk (3),
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.BR cdk_binding (3),
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.BR cdk_display (3)
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.SH NOTES
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.PP
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The header file \f4<cdk.h>\f1 automatically includes the header files
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\f4<curses.h>\f1, \f4<stdlib.h>\f1, \f4<string.h>\f1, \f4<ctype.h>\f1,
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\f4<unistd.h>\f1, \f4<dirent.h>\f1, \f4<time.h>\f1, \f4<errno.h>\f1,
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\f4<pwd.h>\f1, \f4<grp.h>\f1, \f4<sys/stat.h>\f1, and \f4<sys/types.h>\f1.
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The \f4<curses.h>\f1 header file includes \f4<stdio.h>\f1 and \f4<unctrl.h>\f1.
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.PP
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If you have \f4Ncurses\f1 installed on your machine add -DNCURSES to the
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compile line to include the Ncurses header files instead.
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