cdk_screen(3)cdk_screen(3)NAMEcdk_screen - Cdk Screen and Widget Manipulation Functions
SYNOPSIS
cc [ flag ... ] file ... -lcdk [ library ... ]
#include <cdk.h>
void destroyCDKScreen(
CDKSCREEN *screen);
void endCDK(void) ;
void eraseCDKScreen(
CDKSCREEN *screen);
void initCDKColor (void) ;
CDKSCREEN *initCDKScreen (
WINDOW *cursesWindow);
void lowerCDKObject(
EObjectType widgetType,
void *object);
void raiseCDKObject(
EObjectType widgetType,
void *object);
void refreshCDKScreen(
CDKSCREEN *screen);
void registerCDKObject (
CDKSCREEN *screen,
EObjectType widgetType,
void *object);
void unregisterCDKObject(
EObjectType widgetType,
void *object);
DESCRIPTION
Cdk manages all of the widgets for you. These functions perform some
of the management of the widgets in a screen.
AVAILABLE FUNCTIONS
destroyCDKScreen
frees any memory allocated by the Cdk screen pointer.
endCDK
cleans up any memory created by starting Cdk and shuts down
curses.
eraseCDKScreen
erases all of the widgets which are currently associated to the
given screen. This does NOT destroy the widgets.
initCDKColor
starts the Cdk color capabilities. It defines 64 color pairs each
of which is accessible using the COLOR_PAIR macro. If you do not
have color support, this function call makes no difference.
initCDKScreen
takes a WINDOW * (cursesWindow) and returns a pointer to a
CDKSCREEN *. Since all of the widgets take a CDKSCREEN pointer as
a first argument, this is also one of the first calls made. This
also starts curses, so no curses initialization calls have to be
made when using Cdk.
lowerCDKObject
has the opposite effect of the raiseCDKObject function call.
raiseCDKObject
raises the widget to the top of the screen. If there are any wid‐
gets which overlap the given object when a refresh is done, call‐
ing this function has the effect of raiding the object so no other
widgets obstruct it. The widgetType parameter states what Cdk
widget type this object is. The object parameter is a void
pointer to the object.
refreshCDKScreen
redraws all of the widgets which are currently associated to the
given screen.
registerCDKObject
is called automatically when a widget is created. If for some
reason an object does get unregistered, by calling unregisterCD‐
KObject, the widget can be registered again by calling this func‐
tion. The widgetType parameter states what Cdk widget type this
object is. The object parameter is a void pointer to the object.
unregisterCDKObject
removes the widget from the screen. This does NOT destroy the
object, it removes the widget from any further refreshes by the
function refreshCDKScreen. The widgetType parameter states what
Cdk widget type this object is. The object parameter is a void
pointer to the object.
SEE ALSOcdk(3), cdk_binding(3), cdk_display(3)cdk_screen(3)
