SoWindowElement Class Reference
Element Classes

The SoWindowElement class is used to store current window attributes. More...

`#include <Inventor/elements/SoWindowElement.h>`

Inheritance diagram for SoWindowElement:

## Public Member Functions

virtual void | init (SoState *state)
virtual void | push (SoState *state)
virtual void | pop (SoState *state, const SoElement *prevTopElement)
virtual SbBool | matches (const SoElement *element) const
virtual SoElement * | copyMatchInfo (void) const
Public Member Functions inherited from SoElement
const SoType | getTypeId (void) const
int | getStackIndex (void) const
void | setDepth (const int depth)
int | getDepth (void) const
virtual void | print (FILE *file=stdout) const
virtual | ~SoElement ()

## Static Public Member Functions

static SoType | getClassTypeId (void)
static int | getClassStackIndex (void)
static void * | createInstance (void)
static void | initClass (void)
static void | set (SoState *state, void *window, void *context, void *display, SoGLRenderAction *action)
static void | get (SoState *state, void *&window, void *&context, void *&display, SoGLRenderAction *&action)
Static Public Member Functions inherited from SoElement
static void | initClass (void)
static SoType | getClassTypeId (void)
static int | getClassStackIndex (void)
static void | initElements (void)
static int | getNumStackIndices (void)
static SoType | getIdFromStackIndex (const int stackIndex)

## Protected Member Functions

virtual | ~SoWindowElement ()
Protected Member Functions inherited from SoElement
| SoElement (void)
void | capture (SoState *const state) const
virtual void | captureThis (SoState *state) const
void | setTypeId (const SoType typeId)
void | setStackIndex (const int index)
SoElement * | getNextInStack (void) const
SoElement * | getNextFree (void) const

## Protected Attributes

void * | window
void * | context
void * | display
SoGLRenderAction * | glRenderAction
Protected Attributes inherited from SoElement
SoType | typeId
int | stackIndex
int | depth

## Additional Inherited Members

Static Protected Member Functions inherited from SoElement
static SoElement * | getElement (SoState *const state, const int stackIndex)
static const SoElement * | getConstElement (SoState *const state, const int stackIndex)
static int | createStackIndex (const SoType id)
Static Protected Attributes inherited from SoElement
static int | classStackIndex
static SoTypeList * | stackToType

## Detailed Description

The SoWindowElement class is used to store current window attributes.

In Coin, this element is not API-compatible with SGI Inventor, since it contains platform specific stuff, which we want to avoid.

Instead of the platform specific types we use void pointers. We're sorry for any inconvenience this might cause people using this element.

## Constructor & Destructor Documentation

## ~SoWindowElement()

SoWindowElement::~SoWindowElement | ( | void |  | ) |

protected virtual

Destructor.

## Member Function Documentation

## getClassTypeId()

SoType SoWindowElement::getClassTypeId | ( | void |  | ) |

static

This static method returns the SoType object associated with objects of this class.

## getClassStackIndex()

int SoWindowElement::getClassStackIndex | ( | void |  | ) |

static

This static method returns the state stack index for the class.

## createInstance()

void * SoWindowElement::createInstance | ( | void |  | ) |

static

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
Creates a new instance of the class type corresponding to the SoType object.

## initClass()

void SoWindowElement::initClass | ( | void |  | ) |

static

Initialize relevant common data for all instances, like the type system.

## init()

void SoWindowElement::init | ( | SoState * | state | ) |

virtual

This function initializes the element type in the given SoState. It is called for the first element of each enabled element type in SoState objects.

Reimplemented from SoElement.

## push()

void SoWindowElement::push | ( | SoState * | state | ) |

virtual

This method is called every time a new element is required in one of the stacks. This happens when a writable element is requested, using SoState::getElement() or indirectly SoElement::getElement(), and the depth of the current element is less than the state depth.

Override this method if your element needs to copy data from the previous top of stack. The push() method is called on the new element, and the previous element can be found using SoElement::getNextInStack().

Reimplemented from SoElement.

## pop()

void SoWindowElement::pop | ( | SoState * | state,
|  | const SoElement * | prevTopElement )

virtual

This method is called when the state is popped, and the depth of the element is bigger than the current state depth. pop() is called on the new top of stack, and a pointer to the previous top of stack is passed in prevTopElement.

Override this method if you need to copy some state information from the previous top of stack.

Reimplemented from SoElement.

## matches()

SbBool SoWindowElement::matches | ( | const SoElement * | element | ) | const

virtual

This function returns `TRUE` is the element matches another element (of the same class), with respect to cache validity.

If the application programmer's extension element has a matches() function, it should also have a copyMatchInfo() function.

Implements SoElement.

## copyMatchInfo()

SoElement * SoWindowElement::copyMatchInfo | ( | void |  | ) | const

virtual

This function creates a copy of the element that contains enough information to enable the matches() function to work.

Used to help with scene graph traversal caching operations.

Implements SoElement.

## set()

void SoWindowElement::set | ( | SoState * | state,
|  | void * | window,
|  | void * | context,
|  | void * | display,
|  | SoGLRenderAction * | action )

static

Sets data for this element.

## get()

void SoWindowElement::get | ( | SoState * | state,
|  | void *& | window,
|  | void *& | context,
|  | void *& | display,
|  | SoGLRenderAction *& | action )

static

Returns data for this element.

## Member Data Documentation

## window

void* SoWindowElement::window

protected

The window id.

## context

void* SoWindowElement::context

protected

The current context.

## display

void* SoWindowElement::display

protected

The current display.

## glRenderAction

SoGLRenderAction* SoWindowElement::glRenderAction

protected

The current render action.

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

- SoWindowElement.h
- SoWindowElement.cpp