# kdecore Library API Documentation

Overview | Class Hierarchy | Classes | Classes (annotated) | Members | Source Files

# KWinModule Class Reference

The class KWinModule provides information about the state of the window manager as required by windowmanager modules. Base class for KDE Window Manager modules. More...

`#include <kwinmodule.h>`

Inheritance diagram for KWinModule:

[legend]
Collaboration diagram for KWinModule:

[legend]
List of all members.

## Signals

void | currentDesktopChanged (int desktop)
| Switched to another virtual desktop.
void | windowAdded (WId id)
| A window has been added.
void | windowRemoved (WId id)
| A window has been removed.
void | activeWindowChanged (WId)
| Hint that is active (= has focus) now.
void | desktopNamesChanged ()
| Desktops have been renamed.
void | numberOfDesktopsChanged (int num)
| The number of desktops changed.
void | systemTrayWindowAdded (WId id)
| Emitted when a dock window has been added.
void | systemTrayWindowRemoved (WId id)
| Emitted when a dock window has been removed.
void | workAreaChanged ()
| The workarea has changed.
void | strutChanged ()
| Something changed with the struts, may or may not have changed the work area.
void | stackingOrderChanged ()
| Emitted when the stacking order of the window changed.
void | windowChanged (WId id, unsigned int properties)
| The window changed.
void | windowChanged (WId id)
| The window changed somehow.

## Public Member Functions

| KWinModule (QObject *parent=0)
| Creates a KWinModule object and connects to the window manager.
| ~KWinModule ()
| Destructor.
const QValueList< WId > & | windows () const
| Returns the list of all toplevel windows currently managed by the window manager in the order of creation.
const QValueList< WId > & | stackingOrder () const
| Returns the list of all toplevel windows currently managed by the window manager in the current stacking order (from lower to higher).
bool | hasWId (WId id) const
| Test to see if `id` still managed at present.
const QValueList< WId > & | systemTrayWindows () const
| Returns a list of the system tray windows.
int | currentDesktop () const
| Returns the current virtual desktop.
int | numberOfDesktops () const
| Returns the number of virtual desktops.
WId | activeWindow () const
| Returns the currently active window, or 0 if no window is active.
QRect | workArea (int desktop=-1) const
| Returns the workarea for the specified desktop, or the current work area if no desktop has been specified.
QRect | workArea (const QValueList< WId > &excludes, int desktop=-1) const
| Returns the workarea for the specified desktop, or the current work area if no desktop has been specified.
QString | desktopName (int desktop) const
| Returns the name of the specified desktop.
void | setDesktopName (int desktop, const QString &name)
| Sets the name of the specified desktop.
void | doNotManage (const QString &title)
| Informs kwin via dcop to not manage a window with the specified `title`.

## Friends

class | KWinModulePrivate

## Detailed Description

The class KWinModule provides information about the state of the window manager as required by windowmanager modules. Base class for KDE Window Manager modules.

It informs a module about all currently managed windows and changes to them (via Qt signals).

KWinModule uses NETRootInfo internally. Modules written with this class will work fine under any window manager that implements the NET_WM protocol.

There are no methods to manipulate windows. Those are defined in the classes KWin, NETWinInfo and NETRootInfo.

Author:
  Matthias Ettrich (ettrich@kde.org)

Version:
  Id
    kwinmodule.h,v 1.16 2002/09/27 22:50:16 tjansen Exp

Definition at line 50 of file kwinmodule.h.

## Constructor & Destructor Documentation

KWinModule::KWinModule | ( | QObject * | parent = 0 | ) |

Creates a KWinModule object and connects to the window manager.

Parameters:

  parent | the parent for the QObject

KWinModule::~KWinModule | ( |  | ) |

| Destructor. Internal cleanup, nothing fancy.

## Member Function Documentation

const QValueList<WId>& KWinModule::windows | ( |  | ) | const

Returns the list of all toplevel windows currently managed by the window manager in the order of creation.

Please do not rely on indexes of this list: Whenever you enter Qt's event loop in your application, it may happen that entries are removed or added. Your module should perhaps work on a copy of this list and verify a window with hasWindow() before any operations.

Iteration over this list can be done easily with

      QValueList<WId>::ConstIterator it;
      for ( it = module->windows().begin();
            it != modules->windows().end(); ++it ) {
         ... do something here,  (*it) is the current WId.
           }

Returns:
  the list of all toplevel windows

const QValueList<WId>& KWinModule::stackingOrder | ( |  | ) | const

Returns the list of all toplevel windows currently managed by the window manager in the current stacking order (from lower to higher).

May be useful for pagers.

Returns:
  the list of all toplevel windows in stacking order

bool KWinModule::hasWId | ( | WId | id | ) | const

Test to see if `id` still managed at present.

Parameters:

  id | the window id to test

Returns:
  true if the window id is still managed

const QValueList<WId>& KWinModule::systemTrayWindows | ( |  | ) | const

Returns a list of the system tray windows.

Returns:
  a list of all system tray windows

int KWinModule::currentDesktop | ( |  | ) | const

Returns the current virtual desktop.

Returns:
  the current virtual desktop

int KWinModule::numberOfDesktops | ( |  | ) | const

Returns the number of virtual desktops.

Returns:
  the number of virtual desktops

WId KWinModule::activeWindow | ( |  | ) | const

Returns the currently active window, or 0 if no window is active.

Returns:
  the window id of the active window, or 0 if no window is active

QRect KWinModule::workArea | ( | int | desktop = -1 | ) | const

Returns the workarea for the specified desktop, or the current work area if no desktop has been specified.

Parameters:

  desktop | the number of the desktop to check, -1 for the current desktop

Returns:
  the size and position of the desktop

QRect KWinModule::workArea | ( | const QValueList< WId > & | excludes,
|  | int | desktop = -1
| ) | const

Returns the workarea for the specified desktop, or the current work area if no desktop has been specified.

Excludes struts of clients in the exclude List.

Parameters:

  clients | the list of clients whose struts will be excluded
  desktop | the number of the desktop to check, -1 for the current desktop

Returns:
  the size and position of the desktop

QString KWinModule::desktopName | ( | int | desktop | ) | const

Returns the name of the specified desktop.

Parameters:

  desktop | the number of the desktop

Returns:
  the name of the desktop

void KWinModule::setDesktopName | ( | int | desktop,
|  | const QString & | name
| ) |

Sets the name of the specified desktop.

Parameters:

  desktop | the number of the desktop
  name | the new name for the desktop

void KWinModule::doNotManage | ( | const QString & | title | ) |

Informs kwin via dcop to not manage a window with the specified `title`.

Useful for swallowing legacy applications, for example java applets.

Parameters:

  title | the title of the window

void KWinModule::currentDesktopChanged | ( | int | desktop | ) | `[signal]`

Switched to another virtual desktop.

Parameters:

  desktop | the number of the new desktop

void KWinModule::windowAdded | ( | WId | id | ) | `[signal]`

A window has been added.

Parameters:

  id | the id of the the window

void KWinModule::windowRemoved | ( | WId | id | ) | `[signal]`

A window has been removed.

Parameters:

  id | the id of the window that has been removed

void KWinModule::activeWindowChanged | ( | WId |  | ) | `[signal]`

Hint that is active (= has focus) now.

Parameters:

  id | the id of the window that is active

void KWinModule::desktopNamesChanged | ( |  | ) | `[signal]`

| Desktops have been renamed.

void KWinModule::numberOfDesktopsChanged | ( | int | num | ) | `[signal]`

The number of desktops changed.

Parameters:

  num | the new number of desktops

void KWinModule::systemTrayWindowAdded | ( | WId | id | ) | `[signal]`

Emitted when a dock window has been added.

Parameters:

  id | the id of the new system tray window

void KWinModule::systemTrayWindowRemoved | ( | WId | id | ) | `[signal]`

Emitted when a dock window has been removed.

Parameters:

  id | the id of the former system tray window

void KWinModule::workAreaChanged | ( |  | ) | `[signal]`

| The workarea has changed.

void KWinModule::strutChanged | ( |  | ) | `[signal]`

| Something changed with the struts, may or may not have changed the work area.

void KWinModule::stackingOrderChanged | ( |  | ) | `[signal]`

| Emitted when the stacking order of the window changed. The new order can be obtained with stackingOrder().

void KWinModule::windowChanged | ( | WId | id,
|  | unsigned int | properties
| ) | `[signal]`

The window changed.

The unsigned int parameter contains the NET properties that were modified (see netem_def.h).

Parameters:

  id | the id of the window
  properties | the properties that were modified

void KWinModule::windowChanged | ( | WId | id | ) | `[signal]`

The window changed somehow.

Parameters:

  id | the id of the window

The documentation for this class was generated from the following file:

- kwinmodule.h

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
Generated on Wed Jan 28 12:51:51 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001