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							     SoXtGLWidget(3IV)

NAME
     SoXtGLWidget (SoXtGLWidget) - wrapper around GLwMDraw for OpenGL
     rendering in a motif widget

INHERITS FROM
     SoXtComponent > SoXtGLWidget

SYNOPSIS
     #include <Inventor_c/Xt/SoXtGLWidget.h>

	  Functions from class SoXtGLWidget:

     void		 SoXtGLWidgetSetBorder(SoXtGLWidget *this, SbBool
			      onOrOff)
     SbBool		 SoXtGLWidgetIsBorder(const SoXtGLWidget *this)
     void		 SoXtGLWidgetSetDblBuf(SoXtGLWidget *this, SbBool
			      onOrOff)
     SbBool		 SoXtGLWidgetIsDblBuf(SoXtGLWidget *this)
     Window		 SoXtGLWidgetGetNormWin(SoXtGLWidget *this)
     Window		 SoXtGLWidgetGetOverWin(SoXtGLWidget *this)
     GLXContext		 SoXtGLWidgetGetNormCtx(SoXtGLWidget *this)
     GLXContext		 SoXtGLWidgetGetOverCtx(SoXtGLWidget *this)
     Widget		 SoXtGLWidgetGetNormWidget(SoXtGLWidget *this)
     Widget		 SoXtGLWidgetGetOverWidget(SoXtGLWidget *this)
     void		 SoXtGLWidgetSetNormVis(SoXtGLWidget *this,
			      XVisualInfo *vis)
     XVisualInfo *	 SoXtGLWidgetGetNormVis(SoXtGLWidget *this)
     void		 SoXtGLWidgetSetOverVis(SoXtGLWidget *this,
			      XVisualInfo *vis)
     XVisualInfo *	 SoXtGLWidgetGetOverVis(SoXtGLWidget *this)
     void		 SoXtGLWidgetSetDrwFrontBuf(SoXtGLWidget *this, SbBool
			      enableFlag)
     SbBool		 SoXtGLWidgetIsDrwFrontBuf(const SoXtGLWidget *this)

	  Functions from class SoXtComponent:

     void		 SoXtGLWidgetShow(SoXtGLWidget *this)
     void		 SoXtGLWidgetHide(SoXtGLWidget *this)
     SbBool		 SoXtGLWidgetIsVisible(SoXtGLWidget *this)
     Widget		 SoXtGLWidgetGetWidget(const SoXtGLWidget *this)
     SbBool		 SoXtGLWidgetIsTopLevelShell(const SoXtGLWidget *this)
     Widget		 SoXtGLWidgetGetShellWidget(const SoXtGLWidget *this)
     Widget		 SoXtGLWidgetGetParentWidget(const SoXtGLWidget *this)
     void		 SoXtGLWidgetSetSize(SoXtGLWidget *this, const SbVec2s
			      *size)
     SbVec2s		 SoXtGLWidgetGetSize(SoXtGLWidget *this)
     Display *		 SoXtGLWidgetGetDisplay(SoXtGLWidget *this)
     void		 SoXtGLWidgetSetTitle(SoXtGLWidget *this, const char
			      *newTitle)
     const char *	 SoXtGLWidgetGetTitle(const SoXtGLWidget *this)
     void		 SoXtGLWidgetSetIconTitle(SoXtGLWidget *this, const
			      char *newIconTitle)

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SoXtGLWidget(3IV)

     const char *	 SoXtGLWidgetGetIconTitle(const SoXtGLWidget *this)
     void		 SoXtGLWidgetSetWinCloseCB(SoXtGLWidget *this,
			      SoXtComponentCB *func, void *data = NULL)
     SoXtComponent *	 SoXtGLWidgetGetComp(Widget w)
     const char *	 SoXtGLWidgetGetWidgetName(const SoXtGLWidget *this)
     const char *	 SoXtGLWidgetGetClassName(const SoXtGLWidget *this)

DESCRIPTION
     This abstract base class provides a C wrapper around the GLwMDraw widget.
     It allows OpenGL rendering to be performed within a motif widget and is
     used by the SoXtRenderArea. SoXtGlWidget uses a form widget around two
     separate GLwMDraw widgets (one for single and one for double buffering),
     with routines to return the appropriate windows.

FUNCTIONS
     void		 SoXtGLWidgetSetBorder(SoXtGLWidget *this, SbBool
			      onOrOff)
     SbBool		 SoXtGLWidgetIsBorder(const SoXtGLWidget *this)
	  Show and hide the border around the glx widgets (thickness 3).
	  Default is no border (FALSE). (The SoXtRenderArea subclass defaults
	  turns the border on by default.)

     void		 SoXtGLWidgetSetDblBuf(SoXtGLWidget *this, SbBool
			      onOrOff)
     SbBool		 SoXtGLWidgetIsDblBuf(SoXtGLWidget *this)
	  Routine which dynamically changes between single and double
	  buffering. Default is double buffer off. (The SoXtRenderArea
	  subclass makes it double buffer by default.)

     Window		 SoXtGLWidgetGetNormWin(SoXtGLWidget *this)
     Window		 SoXtGLWidgetGetOverWin(SoXtGLWidget *this)
     GLXContext		 SoXtGLWidgetGetNormCtx(SoXtGLWidget *this)
     GLXContext		 SoXtGLWidgetGetOverCtx(SoXtGLWidget *this)
     Widget		 SoXtGLWidgetGetNormWidget(SoXtGLWidget *this)
     Widget		 SoXtGLWidgetGetOverWidget(SoXtGLWidget *this)
	  Get the current normal and overlay GLX windows, contexes and
	  widgets, which are needed as arguments to glXMakeCurrent() when
	  doing drawing in the normal or overlay planes.

	  Note: These should not be cached by users because they will change
	  as single/double buffering changes.

     void		 SoXtGLWidgetSetNormVis(SoXtGLWidget *this,
			      XVisualInfo *vis)
     XVisualInfo *	 SoXtGLWidgetGetNormVis(SoXtGLWidget *this)
     void		 SoXtGLWidgetSetOverVis(SoXtGLWidget *this,
			      XVisualInfo *vis)
     XVisualInfo *	 SoXtGLWidgetGetOverVis(SoXtGLWidget *this)
	  Specify exactly what the visual should be for the normal and overlay
	  window. This allows the user to create all possible visuals
	  supported by OpenGL. The XVisualInfo structure should be a valid

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							     SoXtGLWidget(3IV)

	  OpenGL visual returned by glXChooseVisual(). This structure will be
	  copied by the SoXtGLWidget; the application is responsible for
	  freeing the visual info with XFree() when done.

     void		 SoXtGLWidgetSetDrwFrontBuf(SoXtGLWidget *this, SbBool
			      enableFlag)
     SbBool		 SoXtGLWidgetIsDrwFrontBuf(const SoXtGLWidget *this)
	  Inventor 2.1 changed the behavior of double buffered windows to
	  redraw temporary to the front buffer when an expose event is
	  received or when a new sceneGraph() is set on an SoXtRenderArea.
	  This does not apply for general interactive rendering. The idea is
	  that it is better to see something redraw (especially if it is slow)
	  than to see garbage in the window (in the expose case) or an old
	  invalid scene graph (in the SoXtRenderArea::setSceneGraph() case).

	  This API enables you to turn this functionality OFF if for some
	  reason you are unable to prevent repeated expose from causing a
	  redraw (which is bad and should be fixed, as it gets worse for large
	  scenes). This will be the case for example if you can't create a
	  pulldown menu in the popup planes.

	  NOTE: this api might be removed in some future releases and is only
	  intended as a porting help for Inventor 2.0 to 2.1

SEE ALSO
     SoXtComponent, SoXtRenderArea

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