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Man Pages


Manual Reference Pages  -  CDK_SCREEN (3)

NAME

cdk_screen - Cdk Screen and Widget Manipulation Functions

CONTENTS

Synopsis
Description
Available Functions
See Also

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 widgets which overlap the given object when a refresh is done, calling 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 unregisterCDKObject, the widget can be registered again by calling this function. 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 ALSO

cdk(3), cdk_binding(3), cdk_display(3)
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