haiku/docs/user/interface/Window.dox

/*
 * Copyright 2011-2013 Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *		John Scipione, jscipione@gmail.com
 *
 * Corresponds to:
 *		headers/os/interface/Window.h	 hrev45799
 *		src/kits/interface/Window.cpp	 hrev45799
 */


/*!
	\file Window.h
	\ingroup interface
	\ingroup libbe
	\brief BWindow class definition and support data structures.
*/


// window_type


/*!
	\enum window_type
	\ingroup interface

	Combined window look and feel constants. Define both the appearance and
	behavior of a window.
*/


/*!
	\var window_type B_UNTYPED_WINDOW

	A window of unknown or undefined type.
*/


/*!
	\var window_type B_TITLED_WINDOW

	\c B_TITLED_WINDOW_LOOK and \c B_NORMAL_WINDOW_FEEL.
*/


/*!
	\var window_type B_MODAL_WINDOW

	\c B_MODAL_WINDOW_LOOK and \c B_MODAL_APP_WINDOW_FEEL.
*/


/*!
	\var window_type B_DOCUMENT_WINDOW

	\c B_DOCUMENT_WINDOW_LOOK and \c B_NORMAL_WINDOW_FEEL.
*/


/*!
	\var window_type B_BORDERED_WINDOW

	\c B_BORDERED_WINDOW_LOOK and \c B_NORMAL_WINDOW_FEEL.
*/


/*!
	\var window_type B_FLOATING_WINDOW

	\c B_FLOATING_WINDOW_LOOK and \c B_FLOATING_APP_WINDOW_FEEL.
*/


// window_look


/*!
	\enum window_look
	\ingroup interface

	Window look constants, define window appearance.
*/


/*!
	\var window_look B_BORDERED_WINDOW_LOOK

	No title bar, thin border, no resize control.
*/


/*!
	\var window_look B_NO_BORDER_WINDOW_LOOK

	A borderless rectangle with no provisions to move or close the window.
*/


/*!
	\var window_look B_TITLED_WINDOW_LOOK

	Like \c B_DOCUMENT_WINDOW_LOOK, but with a resize corner instead of a resize
	thumb.
*/


/*!
	\var window_look B_DOCUMENT_WINDOW_LOOK

	Large title bar, thick border, draggable resize corner thumb.
*/


/*!
	\var window_look B_MODAL_WINDOW_LOOK

	For modal dialogs: no title bar, thick border, resize corner depending on the
	\c B_NOT_RESIZABLE flag.
*/


/*!
	\var window_look B_FLOATING_WINDOW_LOOK

	For floating sub windows: small title bar, thin border, resize corner.
*/


// window_feel


/*!
	\enum window_feel
	\ingroup interface

	Window feel constants, define window behavior.
*/


/*!
	\var window_feel B_NORMAL_WINDOW_FEEL

	Behaves like a normal, non-modal, non-floating window.
*/


/*!
	\var window_feel B_MODAL_SUBSET_WINDOW_FEEL

	Blocks all windows in its subset when displayed. Visible only if a window in
	its subset is visible.
*/


/*!
	\var window_feel B_MODAL_APP_WINDOW_FEEL

	Blocks all windows in its app when displayed. Visible only if a window in its
	app is visible.
*/


/*!
	\var window_feel B_MODAL_ALL_WINDOW_FEEL

	Blocks all windows across the entire system when displayed. Always visible
	in all workspaces.
*/


/*!
	\var window_feel B_FLOATING_SUBSET_WINDOW_FEEL

	Floats above all windows in its subset when displayed. Visible only if a
	window in its subset is the frontmost window.
*/


/*!
	\var window_feel B_FLOATING_APP_WINDOW_FEEL

	Floats above all windows in its app when displayed. Visible only if a
	window in its app is the frontmost window.
*/


/*!
	\var window_feel B_FLOATING_ALL_WINDOW_FEEL

	Floats above all windows across the entire system when displayed. Always
	visible in all workspaces.
*/


// window_alignment


/*!
	\enum window_alignment
	\ingroup interface

	Define window alignment.
*/


/*!
	\var window_alignment B_BYTE_ALIGNMENT

	Aligns window in terms of frame buffer offsets. Affects only horizontal
	origin and width, can't align right and bottom edges in this mode.
*/


/*!
	\var window_alignment B_PIXEL_ALIGNMENT

	Aligns window in pixel coordinates.
*/


// window flags


/*!
	\var B_NOT_MOVABLE

	Window cannot be moved by the user.
*/


/*!
	\var B_NOT_CLOSABLE

	Window cannot be closed by the user, no close button is displayed.
*/


/*!
	\var B_NOT_ZOOMABLE

	Window cannot be zoomed by the user, no zoom button is displayed.
*/


/*!
	\var B_NOT_MINIMIZABLE

	Window cannot be minimized by the user.
*/


/*!
	\var B_NOT_RESIZABLE

	Window cannot be resized by the user.
*/


/*!
	\var B_NOT_H_RESIZABLE

	Window cannot be resized horizontally by the user.
*/


/*!
	\var B_NOT_V_RESIZABLE

	Window cannot be resized vertically by the user.
*/


/*!
	\var B_AVOID_FRONT

	Window cannot be brought to front.
*/


/*!
	\var B_AVOID_FOCUS

	Window cannot receive keyboard focus.
*/


/*!
	\var B_WILL_ACCEPT_FIRST_CLICK

	The first click will not just bring the window to front, it will also be
	processed by the window.
*/


/*!
	\var B_OUTLINE_RESIZE

	Window draws only it's outline as it's resized and doesn't draw its
	contents.
*/


/*!
	\var B_NO_WORKSPACE_ACTIVATION

	Causes the current workspace to stay active even if the window is activated on
	another workspace.
*/


/*!
	\var B_NOT_ANCHORED_ON_ACTIVATE

	Causes the window to move to the current workspace when activated if it already
	exists on another workspace.
*/


/*!
	\var B_QUIT_ON_WINDOW_CLOSE

	Quit the application when the window closes.

	\note This flag existed but didn't function in BeOS R5.
*/


/*!
	\var B_SAME_POSITION_IN_ALL_WORKSPACES

	Window maintains its position across workspaces.

	\note This flag did not exist in BeOS R5.
*/


/*!
	\var B_AUTO_UPDATE_SIZE_LIMITS

	Automatically adjust the window size according to the layout constraints.

	\note This flag did not exist in BeOS R5.
*/


/*!
	\var B_CLOSE_ON_ESCAPE

	Close the window when the user pushes the Escape key.

	\note This flag did not exist in BeOS R5.
*/


/*!
	\var B_NO_SERVER_SIDE_WINDOW_MODIFIERS

	??

	\note This flag did not exist in BeOS R5.
*/


// workspace constants


/*!
	\def B_CURRENT_WORKSPACE

	Applies to current workspace only.
*/


/*!
	\def B_ALL_WORKSPACES

	Applies to all workspaces.
*/


/*!
	\class BWindow
	\ingroup interface
	\ingroup libbe
	\brief Window base class.

	A BWindow is an on-screen window which contains views and is the target of
	keyboard and mouse events. A BWindow instance is nearly always subclassed.

	BWindow draws by talking to App Server. If you want draw directly into the
	graphics card by-passing App Server, you need to use a BDirectWindow or
	BWindowScreen.

	Despite the fact that BWindow inherits from BLooper, you should not invoke
	Run() on a BWindow, instead, call Show() to get the message loop started and
	show the window on screen. Once you've called Show() you may remove a window
	from the screen without interrupting the message loop by calling Hide(). Other
	message loop details such as locking and quitting are detailed in the BLooper
	class.
*/


/*!
	\fn BWindow::BWindow(BRect frame, const char* title, window_type type,
		uint32 flags, uint32 workspace)
	\brief Creates a new BWindow object.

	\param frame The inner \a frame rectangle in the screen coordinate system.
	\param title The window \a title and thread title as "w>title".
	\param type window_type flag, one of the following:
	       - \c B_UNTYPED_WINDOW
	       - \c B_TITLED_WINDOW
	       - \c B_MODAL_WINDOW
	       - \c B_DOCUMENT_WINDOW
	       - \c B_BORDERED_WINDOW
	       - \c B_FLOATING_WINDOW
	\param flags Mask that defines window attributes:
	       - \c B_NOT_MOVABLE cannot be moved by the user
	       - \c B_NOT_CLOSABLE cannot be closed by the user, no close button
	            displayed
	       - \c B_NOT_ZOOMABLE cannot be zoomed by the user, no zoom button
	            displayed
	       - \c B_NOT_MINIMIZABLE cannot be minimized by the user
	       - \c B_NOT_RESIZABLE cannot be resized by the user
	       - \c B_NOT_H_RESIZABLE cannot be resized horizontally by the user
	       - \c B_NOT_V_RESIZABLE  cannot be resized vertically by the user
	       - \c B_AVOID_FRONT cannot be brought to front by the user
	       - \c B_AVOID_FOCUS cannot receive keyboard focus
	       - \c B_WILL_ACCEPT_FIRST_CLICK The first click is processed by the
	            window.
	       - \c B_OUTLINE_RESIZE draws only it's outline as it's resized and
	            doesn't draw its contents.
	       - \c B_NO_WORKSPACE_ACTIVATION Causes the current workspace to stay
	            active when activated on another workspace.
	       - \c B_NOT_ANCHORED_ON_ACTIVATE Causes the window to move to the current
	            workspace when activated if it already exists on another workspace.
	       - \c B_QUIT_ON_WINDOW_CLOSE Quit the application when the window closes.
	       - \c B_SAME_POSITION_IN_ALL_WORKSPACES Window maintains its position
	            across workspaces.
	       - \c B_AUTO_UPDATE_SIZE_LIMITS Automatically adjust the size according
	            to layout constraints.
	       - \c B_CLOSE_ON_ESCAPE Close when the user pushes the Escape key.
	       - \c B_NO_SERVER_SIDE_WINDOW_MODIFIERS ??
	\param workspace Mask that indicates which of the 32 potential workspace(s)
	       the window should be displayed in or \c B_CURRENT_WORKSPACE or
	       \c B_ALL_WORKSPACES constants.
*/


/*!
	\fn BWindow::BWindow(BRect frame, const char* title, window_look look,
		window_feel feel, uint32 flags, uint32 workspace)
	\brief Creates a new BWindow object with the specified \a look and \a feel.

	\param frame The inner \a frame rectangle in the screen coordinate system.
	\param title The window \a title and thread title as "w>title".
	\param look The window_look flags, one of the following:
	       - \c B_BORDERED_WINDOW_LOOK No title bar, thin border, no resize
	         control.
	       - \c B_NO_BORDER_WINDOW_LOOK A borderless rectangle with no provisions
	         to move or close the window.
	       - \c B_TITLED_WINDOW_LOOK Like \c B_DOCUMENT_WINDOW_LOOK, but with a
	         resize corner instead of a resize thumb.
	       - \c B_DOCUMENT_WINDOW_LOOK Large title bar, thick border, draggable
	         resize corner thumb.
	       - \c B_MODAL_WINDOW_LOOK For modal dialogs: no title bar, thick border,
	         resize corner depending on the \c B_NOT_RESIZABLE flag.
	       - \c B_FLOATING_WINDOW_LOOK For floating sub windows: small title bar,
	         thin border, resize corner.
	\param feel The window_feel flags, one of the following:
	       - \c B_NORMAL_WINDOW_FEEL Behaves like a normal, non-modal,
	         non-floating window.
	       - \c B_MODAL_SUBSET_WINDOW_FEEL Blocks all windows in its subset when
	         displayed. Visible only if a window in its subset is visible.
	       - \c B_MODAL_APP_WINDOW_FEEL Blocks all windows in its app when
	         displayed. Visible only if a window in its app is visible.
	       - \c B_MODAL_ALL_WINDOW_FEEL Blocks all windows across the entire
	         system when displayed. Always visible in all workspaces.
	       - \c B_FLOATING_SUBSET_WINDOW_FEEL Floats above all windows in its
	         subset when displayed. Visible only if a window in its subset is the
	         frontmost window.
	       - \c  B_FLOATING_APP_WINDOW_FEEL Floats above all windows in its app
	         when displayed. Visible only if a window in its app is the frontmost
	         window.
	       - \c  B_FLOATING_ALL_WINDOW_FEEL Floats above all windows across the
	         entire system when displayed. Always visible in all workspaces.
	\param flags Mask that defines window attributes:
	       - \c B_NOT_MOVABLE cannot be moved by the user
	       - \c B_NOT_CLOSABLE cannot be closed by the user, no close button
	            displayed
	       - \c B_NOT_ZOOMABLE cannot be zoomed by the user, no zoom button
	            displayed
	       - \c B_NOT_MINIMIZABLE cannot be minimized by the user
	       - \c B_NOT_RESIZABLE cannot be resized by the user
	       - \c B_NOT_H_RESIZABLE cannot be resized horizontally by the user
	       - \c B_NOT_V_RESIZABLE  cannot be resized vertically by the user
	       - \c B_AVOID_FRONT cannot be brought to front by the user
	       - \c B_AVOID_FOCUS cannot receive keyboard focus
	       - \c B_WILL_ACCEPT_FIRST_CLICK The first click is processed by the
	            window.
	       - \c B_OUTLINE_RESIZE draws only it's outline as it's resized and
	            doesn't draw its contents.
	       - \c B_NO_WORKSPACE_ACTIVATION Causes the current workspace to stay
	            active when activated on another workspace.
	       - \c B_NOT_ANCHORED_ON_ACTIVATE Causes the window to move to the current
	            workspace when activated if it already exists on another workspace.
	       - \c B_QUIT_ON_WINDOW_CLOSE Quit the application when the window closes.
	       - \c B_SAME_POSITION_IN_ALL_WORKSPACES Window maintains its position
	            across workspaces.
	       - \c B_AUTO_UPDATE_SIZE_LIMITS Automatically adjust the size according
	            to layout constraints.
	       - \c B_CLOSE_ON_ESCAPE Close when the user pushes the Escape key.
	       - \c B_NO_SERVER_SIDE_WINDOW_MODIFIERS ??
	\param workspace Mask that indicates which of the 32 potential workspace(s)
	       the window should be displayed in or \c B_CURRENT_WORKSPACE or
	       \c B_ALL_WORKSPACES constants.
*/


/*!
	\fn BWindow::BWindow(BMessage* data)
	\brief Archive constructor.

	\param data A pointer to the BMessage object to build the object from.
*/


/*!
	\fn BWindow::BWindow(BRect frame, int32 bitmapToken)
	\brief Offscreen bitmap constructor.

	\param frame The inner \a frame rectangle in the screen coordinate system.
	\param bitmapToken Token to pass into App Server for offscreen window bitmap.
*/


/*!
	\fn BWindow::~BWindow()
	\brief Destroys the BWindow object and all attached views.
*/


/*!
	\fn BArchivable* BWindow::Instantiate(BMessage* data)
	\brief Creates a new BWindow object from the \a data message.

	\param data A pointer to the BMessage object to build the object from.

	\returns A newly created BWindow object or \c NULL if the message doesn't
		contain an archived BWindow.
*/


/*!
	\fn status_t BWindow::Archive(BMessage* data, bool deep) const
	\brief Archives the object into the \a data message.

	\param data A pointer to the BMessage object to archive the object into.
	\param deep Whether or not to archive child views as well.

	\return A status code, \c B_OK if the object was archived or an error code
	        otherwise.
*/


/*!
	\fn void BWindow::Quit()
	\brief Deletes the window and all child views, destroys the window thread,
	       removes the window's connection to the Application Server, and deletes
	       the object.

	Use this method to destroy a window rather than using the delete operator.

	This method works much like the BLooper::Quit(), it doesn't return when
	called from the BWindow's thread and it returns after all messages have been
	processed when called from another thread and the BWindow and its thread has
	been destroyed.

	\warning The window must first be locked before calling Quit().

	\see BLooper::Quit()
*/


/*!
	\fn void BWindow::AddChild(BView* child, BView* before)
	\brief Adds \a child to the view hierarchy immediately before \a before.

	A view may only have one parent at a time so \a child must not have already
	been added to the view hierarchy. If \a before is \c NULL then \a child is
	added to the end of the view hierarchy.

	The AttachedToWindow() method is invoked on \a child and all of its
	descendent views.

	\param child The child view to add.
	\param before The sibling view to add \a child before.
*/


/*!
	\fn void BWindow::AddChild(BLayoutItem* child)
	\brief Add the \a child layout item to the view hierarchy.

	\note This method was not available in BeOS R5.

	\param child The child layout item to add.
*/


/*!
	\fn bool BWindow::RemoveChild(BView* child)
	\brief Removes \a child from the view hierarchy.

	\param child The child view to remove.

	\return Whether or not \a child was removed from the view hierarchy.
*/


/*!
	\fn int32 BWindow::CountChildren() const
	\brief Returns the number of child views that the window has.

	\return The number of child views as an int32.
*/


/*!
	\fn BView* BWindow::ChildAt(int32 index) const
	\brief Returns a pointer to the child view found at \a index.

	\param index The index of the child view to return a pointer of.

	\return A pointer to the child view at \a index or \c NULL if not found.
*/


/*!
	\fn void BWindow::Minimize(bool minimize)
	\brief Minimizes or un-minimizes the window based on \a minimize.

	Unlike Hide() an Show(), Minimize() dims and un-dims the entry for the window
	in Deskbar's window list rather than removing it. Also Minimize() calls are not
	cumulative like Hide() and Show(); one \c false call will undo multiple \c true
	calls.

	Minimize() also acts as a hook method that is invoked when the user double-
	clicks on the title tab of the window or selects the window from the DeskBar
	window list. The \a minimize parameter is \c true if the window is about to be
	hidden and \c false if it is about to be shown.

	If you override Minimize() and you want to inherit BWindow's behavior, you
	must call BWindow::Minimize().
*/


/*!
	\fn status_t BWindow::SendBehind(const BWindow* window)
	\brief Moves the BWindow object behind \a window.

	\param window A pointer to the window to move behind.

	\returns \c B_OK on success or \c B_ERROR on failure.
*/


/*!
	\fn void BWindow::Flush() const
	\brief Flushes the window's connection to App Server causing any pending
	messages to be processed then returns immediately.
*/


/*!
	\fn void BWindow::Sync() const
	\brief Synchronizes the attached window's connection to App Server causing any
	pending messages to be processed and then waits for the App Server to respond.
*/


/*!
	\fn void BWindow::DisableUpdates()
	\brief Suppresses drawing within the window.

	If you want the results of several drawing operations to appear in the window
	all at once you disable updates, draw, and then re-enable updates.
*/


/*!
	\fn void BWindow::EnableUpdates()
	\brief Re-enable drawing within the window.

	If you want the results of several drawing operations to appear in the window
	all at once you disable updates, draw, and then re-enable updates.
*/


/*!
	\fn void BWindow::BeginViewTransaction()
	\brief Stall updates to App Server allowing you to batch drawing commands to
	       limit flickering.

	Unlike DisableUpdates() the messages are sent but are not processed.

	\note This method was not available in BeOS R5.
*/


/*!
	\fn void BWindow::EndViewTransaction()
	\brief Ends a view transaction allowing update to go to App Server again.

	\note This method was not available in BeOS R5.
*/


/*!
	\fn bool BWindow::InViewTransaction() const
	\brief Returns whether or not the window is currently in a view transaction.

	\note This method was not available in BeOS R5.

	\returns \c true if the window is currently in a view transaction,
	         \c false otherwise.
*/


/*!
	\fn bool BWindow::IsFront() const
	\brief Returns whether or not the window is the frontmost on screen.

	\returns \c true if window is the frontmost on screen, \c false otherwise.
*/


/*!
	\fn void BWindow::MessageReceived(BMessage* message)
	\brief Handle \a message received by the associated looper.

	\param message The \a message received by the looper.

	\see BHandler::MessageReceived()
*/


/*!
	\fn void BWindow::DispatchMessage(BMessage* message, BHandler* target)
	\brief Window's central message-processing method.

	This method called automatically as messages arrive in the queue, you should
	never call DispatchMessage() yourself.

	\warning Don't override this method in your BWindow subclass. Override
	MessageReceived() instead to alter the window's message dispatching
	mechanism.

	\see BLooper::DispatchMessage()
*/


/*!
	\fn void BWindow::FrameMoved(BPoint newPosition)
	\brief Hook method that gets called when the window is moved.

	The default implementation does nothing.

	\param newPosition The point of the top left corner of the frame
		rectangle that the window has been moved to.
*/


/*!
	\fn void BWindow::FrameResized(float newWidth, float newHeight)
	\brief Hook method that gets called when the window is resized.

	The default implementation does nothing.

	\param newWidth The new \a width of the window.
	\param newHeight The new \a height of the window.
*/


/*!
	\fn void BWindow::WorkspacesChanged(uint32 oldWorkspaces,
		uint32 newWorkspaces)
	\brief Hook method that gets called when the number of workspaces changes.

	The default implementation does nothing.

	\param oldWorkspaces The old number of workspaces.
	\param newWorkspaces The new number of workspaces.
*/


/*!
	\fn void BWindow::WorkspaceActivated(int32 workspace, bool state)
	\brief Hook method that gets called when the active workspace changes.

	The default implementation does nothing.

	\param workspace The \a workspace number that was activated/deactivated.
	\param state \c true if activated, \c false if deactivated.
*/


/*!
	\fn void BWindow::MenusBeginning()
	\brief Hook method that gets called just before a menu owned by the window is
	       shown.

	The default implementation does nothing.

	\note This method is not invoked by a message, there is no
	      \c B_MENUS_BEGINNING flag.
*/


/*!
	\fn void BWindow::MenusEnded()
	\brief Hook method that gets called just before a menu owned by the window is
	       hidden.

	The default implementation does nothing.

	\note This method is not invoked by a message, there is no
	      \c B_MENUS_ENDED flag.
*/


/*!
	\fn void BWindow::SetSizeLimits(float minWidth, float maxWidth,
		float minHeight, float maxHeight)
	\brief Set size limits on the window.

	The user won't be able to resize the window beyond the limits set by this
	method. SetSizeLimits() constrains the user, not the programmer, you may
	still resize the window outside of the size limits set by this method by
	calling ResizeBy() or ResizeTo().

	\param minWidth The minimum width of the window to set.
	\param maxWidth The maximum width of the window to set.
	\param minHeight The minimum height of the window to set.
	\param maxHeight The maximum height of the window to set.
*/


/*!
	\fn void BWindow::GetSizeLimits(float* _minWidth, float* _maxWidth,
		float* _minHeight, float* _maxHeight)
	\brief Fills out the size limits set on the window.

	\param _minWidth The minimum width of the window.
	\param _maxWidth The maximum width of the window.
	\param _minHeight The minimum height of the window.
	\param _maxHeight The maximum height of the window.
*


/*!
	\fn void BWindow::UpdateSizeLimits()
	\brief Updates the window's size limits from the minimum and maximum sizes
	       of its top view.

	This method does nothing unless the \c B_AUTO_UPDATE_SIZE_LIMITS window flag
	is set.

	The method is called automatically after a layout invalidation. Since it is
	invoked asynchronously, calling this method manually is necessary, if it is
	desired to adjust the limits (and as a possible side effect the window size)
	earlier, e.g. before the first call to the Show() method.)
*/


/*!
	\fn status_t BWindow::SetDecoratorSettings(const BMessage& settings)
	\brief Set the window decorator settings according to \a settings.

	\param settings The decorator \a settings message to set.

	\returns \c B_OK if the decorator settings were set successfully or an error
	         code otherwise.
*/


/*!
	\fn status_t BWindow::GetDecoratorSettings(BMessage* settings) const
	\brief Fill out the window's decorator settings into \a settings.

	\param settings A pointer to a BMessage object to fill out.

	\returns \c B_OK if the decorator settings were filled out successfully
	         or an error code otherwise.
*/


/*!
	\fn void BWindow::SetZoomLimits(float maxWidth, float maxHeight)
	\brief Sets the maximum size that the window will zoom to when Zoom() is
	       called.

	The window will zoom to the minimum of the screen size, the maximum values
	set by SetSizeLimits(), and the maximum values set by this method.

	/see Zoom()
*/


/*!
	\fn void BWindow::Zoom(BPoint origin, float width, float height)
	\brief Move window to \a origin, then resize to \a width and \a height.

	You may call Zoom() even if the window has the \c B_NOT_ZOOMABLE flag set.
	This method may move and resize the window resulting in both the FrameMoved()
	and FrameResized() hook methods to be called.

	\param origin The point that the window was moved to.
	\param width The new width of the window.
	\param height The new height of the window.
*/


/*!
	\fn void BWindow::Zoom()
	\brief Resize the window to the minimum of the screen size, the maximum values
	       set by SetSizeLimits(), and the maximum values set by SetZoomLimits().

	You may call Zoom() even if the window has the \c B_NOT_ZOOMABLE flag set.
	This method may move and resize the window resulting in both the FrameMoved()
	and FrameResized() hook methods to be called. This is the method called when
	the user clicks a window's zoom button.
*/


/*!
	\fn void BWindow::ScreenChanged(BRect screenSize, color_space depth)
	\brief Hook method that is called when the screen that the window is located
	       on changes size or location or the color space of the screen changes.

	The default implementation does nothing.

	\param screenSize The new screen size in the screen's coordinate system.
	\param depth The new color space of the screen.
*/


/*!
	\fn void BWindow::SetPulseRate(bigtime_t rate)
	\brief Sets how often \c B_PULSE messages are posted to the window.

	All BViews attached to a window share the same pulse rate.

	\a rate should not be set to less than 100,000 microseconds, differences less
	than 50,000 microseconds may not be noticeable.

	Setting the \a rate to 0 disables pulsing for all views attache to the window.

	\param rate The pulse rate to set.
*/


/*!
	\fn bigtime_t BWindow::PulseRate() const
	\brief Returns the pulse rate of the window.

	\c B_PULSE messages are sent by default every 500,000 microseconds provided
	that no other messages are pending.

	\returns The pulse rate of the window as a bigtime_t.
*/


/*!
	\fn void BWindow::AddShortcut(uint32 key, uint32 modifiers, BMenuItem* item)
	\brief Creates a keyboard shortcut that activates \a item.

	\note This method was not available in BeOS R5.

	\param key The modifier key to set.
	\param modifiers Additional modifiers on top of \a B_COMMAND_KEY.
	\param item The menu \a item to activate.
*/


/*!
	\fn void BWindow::AddShortcut(uint32 key, uint32 modifiers, BMessage* message)
	\brief Creates a keyboard shortcut that sends a \a message to the window.

	\param key The modifier key to set.
	\param modifiers Additional modifiers on top of \a B_COMMAND_KEY.
	\param message The \a message to send when the shortcut is activated.
*/


/*!
	\fn void BWindow::AddShortcut(uint32 key, uint32 modifiers, BMessage* message,
		BHandler* target)
	\brief Creates a keyboard shortcut that sends a \a message to the specified
	       \a target.

	\param key The modifier key to set.
	\param modifiers Additional modifiers on top of \a B_COMMAND_KEY.
	\param message The \a message to send when the shortcut is activated.
	\param target The handler to send the message to.
*/


/*!
	\fn bool BWindow::HasShortcut(uint32 key, uint32 modifiers)
	\brief Returns whether or not the specified shortcut is set on the window.

	\param key The modifier key to check.
	\param modifiers Additional modifiers on top of \a B_COMMAND_KEY to check.

	\returns \c true if the window has the specified shortcut, \c false otherwise.
*/


/*!
	\fn void BWindow::RemoveShortcut(uint32 key, uint32 modifiers)
	\brief Removes the specified shortcut from the window.

	\param key The modifier key.
	\param modifiers Additional modifiers on top of \a B_COMMAND_KEY.
*/


/*!
	\fn BButton* BWindow::DefaultButton() const
	\brief Returns a pointer to the default button set on the window.

	\return A pointer to the window's default button or \c NULL if it doesn't
	        have one.
*/


/*!
	\fn void BWindow::SetDefaultButton(BButton* button)
	\brief Set the default button of the window to \a button.

	The default button has a grey outline and is activated by the user pushing
	the Enter key. The user can activate the default button even if another view
	is currently set to be the focus view of the window.

	A window may only have one default button at a time, to remove the current
	default without setting another button you may pass in \c NULL.

	\param button A pointer to the button to set as the default or \c NULL to
	       unset.
*/


/*!
	\fn bool BWindow::NeedsUpdate() const
	\brief Returns whether or not any of the attached views need to be updated.

	\return \c true if an attached view needs to be updated, \c false otherwise.
*/


/*!
	\fn void BWindow::UpdateIfNeeded()
	\brief Invokes Draw() immediately on each child view that needs updating.

	This method is synchronous, it waits for each child view to update before
	returning. This method is ignored unless it is called from within the message
	loop of the thread that the BWindow is running in.

	You may call this method as part of a hook function such as MouseMoved() or
	KeyDown() to force invalid views to be immediately redrawn without having to
	wait for the hook function to finish.
*/


/*!
	\fn BView* BWindow::FindView(const char* viewName) const
	\brief Returns the attached view with the specified \a viewName.

	\param viewName The name of the attached view to look for.

	\return A pointer to the BView object or \c NULL if no view is found.
*/


/*!
	\fn BView* BWindow::FindView(BPoint point) const
	\brief Returns a pointer to the attached view located at the specified
	       \a point.

	\param point The \a point to get the view at in the window's coordinate
	       system.

	\return A pointer to the BView object or \c NULL if no view is found.
*/


/*!
	\fn BView* BWindow::CurrentFocus() const
	\brief Returns a pointer to the current focus view of the window.

	\return A pointer to the current focus view of the window or \c NULL if
	        not found.
*/


/*!
	\fn void BWindow::Activate(bool active)
	\brief Activates or deactivates the window based on \a active.

	The title tab of the active window is drawn more brightly, the window is made
	frontmost, and it becomes the target of keyboard events. Calling Show()
	automatically activates the window calling the WindowActivated() hook method.

	\param active \c true to activate the window, \c false to deactivate the
	       window.
*/


/*!
	\fn void BWindow::WindowActivated(bool state)
	\brief Hook method that gets called when the window becomes activated or
	       deactivated.

	The default implementation does nothing.

	\param state \c true if the window has become activated, \c false if the
	       window has become deactivated.
*/


/*!
	\fn void BWindow::ConvertToScreen(BPoint* point) const
	\brief Convert \a point to the screen's coordinate system in place.

	\param point A pointer to a BPoint object to convert.
*/


/*!
	\fn BPoint BWindow::ConvertToScreen(BPoint point) const
	\brief Returns \a point converted to the screen's coordinate system.

	\param point A BPoint object to convert.

	\return A new BPoint object in the screen's coordinate system.
*/


/*!
	\fn void BWindow::ConvertFromScreen(BPoint* point) const
	\brief Convert \a point from the screen's coordinate system to the
		   window's coordinate system in place.

	\param point A pointer to a BPoint object to convert.
*/


/*!
	\fn BPoint BWindow::ConvertFromScreen(BPoint point) const
	\brief Returns \a point converted from the screen's coordinate system to
	       the window's coordinate system.

	\param point A BPoint object to convert.

	\return A new BPoint object in the window's coordinate system.
*/


/*!
	\fn void BWindow::ConvertToScreen(BRect* rect) const
	\brief Convert \a rect to the screen's coordinate system in place.

	\param rect A pointer to a BRect object to convert.
*/


/*!
	\fn BRect BWindow::ConvertToScreen(BRect rect) const
	\brief Returns \a rect converted to the screen's coordinate system.

	\param rect A BRect object to convert.

	\return A new BRect object in the screen's coordinate system.
*/


/*!
	\fn void BWindow::ConvertFromScreen(BRect* rect) const
	\brief Convert \a rect from the screen's coordinate system to the
		   window's coordinate system in place.

	\param rect A pointer to a BRect object to convert.
*/


/*!
	\fn BRect BWindow::ConvertFromScreen(BRect rect) const
	\brief Returns \a rect converted from the screen's coordinate system to the
		   window's coordinate system.

	\param rect A BRect object to convert.

	\return A new BRect object in the window's coordinate system.
*/


/*!
	\fn bool BWindow::IsMinimized() const
	\brief Returns whether or not the window is minimized.

	\return \c true if the window is minimized, \c false otherwise.
*/


/*!
	\fn BRect BWindow::Bounds() const
	\brief Returns the bounding rectangle of the window.

	\return The bounding rectangle of the window as a BRect in the window's
	        coordinate system.
*/


/*!
	\fn BRect BWindow::Frame() const
	\brief Returns the frame rectangle of the window.

	\return The bounding rectangle of the window as a BRect in the screen
	        coordinate system.
*/


/*!
	\fn BRect BWindow::DecoratorFrame() const
	\brief Returns the frame rectangle of the window decorator.

	\note This method was not available in BeOS R5.

	\return The bounding rectangle of the window decorator as a BRect in the
	        screen coordinate system.
*/


/*!
	\fn BSize BWindow::Size() const
	\brief Returns the size of the window.

	\note This method was not available in BeOS R5.

	\return The size of the window as a BSize in the screen coordinate system.
*/


/*!
	\fn const char* BWindow::Title() const
	\brief Returns the window title as set by the constructor or SetTitle().

	\return A pointer to the window title.
*/


/*!
	\fn void BWindow::SetTitle(const char* title)
	\brief Sets the window title to \a title.

	Also renames the window thread to "w>title" where "title" is the passed in
	title string.
*/


/*!
	\fn bool BWindow::IsActive() const
	\brief Returns whether or not the window is active.

	\return \c true if the window is active, \c false otherwise.
*/


/*!
	\fn void BWindow::SetKeyMenuBar(BMenuBar* bar)
	\brief Set the specified menu \a bar as the key menu bar for the window.

	The key menu bar is the one located at the top of the window at the root of
	the menu hierarchy that the user can navigate with the keyboard.

	\param bar A pointer to the menu \a bar to set as as the key menu \a bar for
	       the window.
*/


/*!
	\fn BMenuBar* BWindow::KeyMenuBar() const
	\brief Returns a pointer to the key menu bar set to the window.

	If the window contains only one menu bar it is automatically considered to be
	the key menu bar for the window. If more than one menu bar is attached to the
	window then the last one added to the window's view hierarchy is considered
	to be the key menu bar for the window.

	To explicitly set a menu bar as the key menu bar call SetKeyMenuBar().

	\return A pointer to the key menu bar or \c NULL is not is set.
*/


/*!
	\fn bool BWindow::IsModal() const
	\brief Returns whether or not the window is modal.

	\return \c true if the window is modal, \c false otherwise.
*/


/*!
	\fn bool BWindow::IsFloating() const
	\brief Returns whether or not the window is floating.

	\return \c true if the window is floating, \c false otherwise.
*/


/*!
	\fn status_t BWindow::AddToSubset(BWindow* window)
	\brief Adds \a window to be in the subset of the BWindow.

	\return A status code.
	\retval B_OK \a window was added as a subset of the BWindow.
	\retval B_BAD_VALUE \c window is not \c B_NORMAL_WINDOW_FEEL or the BWindow
	        object's feel is not set to \c B_MODAL_SUBSET_WINDOW_FEEL or
			\c B_FLOATING_SUBSET_WINDOW_FEEL.
	\retval B_ERROR Could not lock the BWindow object.
*/


/*!
	\fn status_t BWindow::RemoveFromSubset(BWindow* window)
	\brief Remove \a window from the subset of the BWindow.

	\return A status code.
	\retval B_OK \a window was removed from the subset of the BWindow.
	\retval B_BAD_VALUE \c window is not \c B_NORMAL_WINDOW_FEEL or the BWindow
	        object's feel is not set to \c B_MODAL_SUBSET_WINDOW_FEEL or
			\c B_FLOATING_SUBSET_WINDOW_FEEL.
	\retval B_ERROR Could not lock the BWindow object.
*/


/*!
	\fn status_t BWindow::SetType(window_type type)
	\brief Changes the window type set in the constructor to \a type.

	\return \c B_OK on success or an error code on failure.
*/


/*!
	\fn window_type BWindow::Type() const
	\brief Returns the current window type flag.

	\return The currently set window type flag.
*/


/*!
	\fn status_t BWindow::SetLook(window_look look)
	\brief Changes the window look set in the constructor to \a look.

	\return \c B_OK on success or an error code on failure.
*/


/*!
	\fn window_look BWindow::Look() const
	\brief Returns the current window look flag.

	\return The currently set window look flag.
*/


/*!
	\fn status_t BWindow::SetFeel(window_feel feel)
	\brief Changes the window feel set in the constructor to \a feel.

	\return \c B_OK on success or an error code on failure.
*/


/*!
	\fn window_feel BWindow::Feel() const
	\brief Returns the current window feel flag.

	\return The currently set window feel flag.
*/


/*!
	\fn status_t BWindow::SetFlags(uint32 flags)
	\brief Changes the window flags set in the constructor to \a flags.

	\return \c B_OK on success or an error code on failure.
*/


/*!
	\fn uint32 BWindow::Flags() const
	\brief Returns the current window flags.

	\return The currently set window flags.
*/


/*!
	\fn status_t BWindow::SetWindowAlignment(window_alignment mode,
	int32 h, int32 hOffset, int32 width, int32 widthOffset,
	int32 v, int32 vOffset, int32 height, int32 heightOffset)
*/


/*!
	\fn status_t BWindow::GetWindowAlignment(window_alignment* mode,
	int32* h, int32* hOffset, int32* width, int32* widthOffset,
	int32* v, int32* vOffset, int32* height, int32* heightOffset) const
*/


/*!
	\fn uint32 BWindow::Workspaces() const
	\brief Returns the set of workspaces where the window can be displayed.
*/


/*!
	\fn void BWindow::SetWorkspaces(uint32 workspaces)
	\brief Sets the set of workspaces where the window can be displayed.

	\param workspaces
	- \c B_CURRENT_WORKSPACE to place the window in the currently displayed
	     workspace removing it from all others.
	- \c B_ALL_WORKSPACES to make the window show up in all workspaces.
*/


/*!
	\fn BView* BWindow::LastMouseMovedView() const
	\brief Returns a pointer to the attached view that most recently received
	       a \c B_MOUSE_MOVED message.

	\return A pointer the BView object that most recently received a
	        \c B_MOUSE_MOVED message or \c NULL if not found.
*/


/*!
	\fn void BWindow::MoveBy(float dx, float dy)
	\brief Move the window by \a dx pixels horizontally and \a dy pixels
	       vertically.

	\a dx and \a dy must be integral units.

	\param dx The number of pixels to move the window vertically.
	\param dy The number of pixels to move the window horizontally.
*/


/*!
	\fn void BWindow::MoveTo(BPoint point)
	\brief Move the window to \a point.

	\param point the location to move the window in the screen's coordinate
	       system.
*/


/*!
	\fn void BWindow::MoveTo(float x, float y)
	\brief Move the window to the specified \a x and \a y coordinates.

	\a x and \a y must be integral units.

	\param x The horizontal coordinate to move the window to in the screen's
	       coordinate system.
	\param y The vertical coordinate to move the window to in the screen's
	       coordinate system.
*/


/*!
	\fn void BWindow::ResizeBy(float dx, float dy)
	\brief Resize the window by \a dx pixels horizontally and \a dy pixels vertically.

	\a dx and \a dy must be integral units.

	\brief dx The number of pixels to resize the window horizontally.
	\brief dy The number of pixels to resize the window vertically.
*/


/*!
	\fn void BWindow::ResizeTo(float width, float height)
	\brief Resize the window to the specified \a width and \a height.

	\a width and \a height must be integral units.

	\param width The width to resize the window to.
	\param height The height to resize the window to.
*/


/*!
	\fn void BWindow::CenterIn(const BRect& rect)
	\brief Center the window in \a rect.

	\param rect The rectangle to center the window in.
*/


/*!
	\fn void BWindow::CenterOnScreen()
	\brief Centers the window on the screen the window is currently on.
*/


/*!
	\fn void BWindow::CenterOnScreen(screen_id id)
	\brief Centers the window on the screen with the passed in \a id.
*/


/*!
	\fn void BWindow::Show()
	\brief Shows the window on screen, places it frontmost on the screen, adds
	       the window to Deskbar's window list, and makes it the active window.

	If this is the first time Show() has been called on the window the message loop
	is started and it is unlocked.

	Calls to Hide() and Show() are cumulative.
*/


/*!
	\fn void BWindow::Hide()
	\brief Removes the window from the screen, removes it from Deskbar's window
	       list, and passes active status to another window.

	Calls to Hide() and Show() are cumulative.
*/


/*!
	\fn bool BWindow::IsHidden() const
	\brief Returns whether or not the window is hidden.

	Windows are hidden by default, you must call Show() to show the window starting
	the message loop going.
*/


/*!
	\fn bool BWindow::QuitRequested()
	\brief Hook method that gets called when the window receives a
	       \a B_QUIT_REQUESTED message.

	\see Quit()
	\see BLooper::QuitRequested()
*/


/*!
	\fn thread_id BWindow::Run()
	\brief Spawns the message loop thread and starts the window running.

	\see BLooper::Run()
*/


/*!
	\fn void BWindow::SetLayout(BLayout* layout)
	\brief Sets the \a layout of the window.

	\param layout The \a layout to set.
*/


/*!
	\fn BLayout* BWindow::GetLayout() const
	\brief Get the layout of the window.

	\returns The layout of the window.
*/


/*!
	\fn void BWindow::InvalidateLayout(bool descendants)
	\brief Invalidate layout.

	\param descendants Also invalidate its children windows.
*/


/*!
	\fn void BWindow::Layout(bool force)
	\brief Update the size limits and do the layout of the topmost view attached
	       to the window.

	\param force If \c true, layout even if valid.
*/


/*!
	\fn status_t BWindow::GetSupportedSuites(BMessage* data)
	\brief Reports the suites of messages and specifiers understood by the window.

	\param data The message to use to report the suite of messages and specifiers.

	\see BHandler::GetSupportedSuites()
*/


/*!
	\fn BHandler* BView::ResolveSpecifier(BMessage* message, int32 index,
		BMessage* specifier, int32 what, const char* property)
	\brief Determine the proper handler for a scripting message.

	\see BHandler::ResolveSpecifier()
*/