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GLXQUERYDRAWABLE(3G)		 OpenGL Manual		  GLXQUERYDRAWABLE(3G)

NAME
       glXQueryDrawable - returns an attribute assoicated with a GLX drawable

C SPECIFICATION
       int glXQueryDrawable(Display * dpy, GLXDrawable draw, int attribute,
			    unsigned int * value);

PARAMETERS
       dpy
	   Specifies the connection to the X server.

       draw
	   Specifies the GLX drawable to be queried.

       attribute
	   Specifies the attribute to be returned. Must be one of GLX_WIDTH,
	   GLX_HEIGHT, GLX_PRESERVED_CONTENTS, GLX_LARGEST_PBUFFER, or
	   GLX_FBCONFIG_ID.

       value
	   Contains the return value for attribute.

DESCRIPTION
       glXQueryDrawable sets value to the value of attribute with respect to
       the GLXDrawable draw.

       attribute may be one of the following:

       GLX_WIDTH
	   Returns the width of ctx.

       GLX_HEIGHT
	   Returns the height of ctx.

       GLX_PRESERVED_CONTENTS
	   Returns True if the contents of a GLXPbuffer are preserved when a
	   resource conflict occurs; False otherwise.

       GLX_LARGEST_PBUFFER
	   Returns the value set when glXCreatePbuffer was called to create
	   the GLXPbuffer. If False is returned, then the call to
	   glXCreatePbuffer will fail to create a GLXPbuffer if the requested
	   size is larger than the implementation maximum or available
	   resources. If True is returned, a GLXPbuffer of the maximum
	   availble size (if less than the requested width and height) is
	   created.

       GLX_FBCONFIG_ID
	   Returns the XID for draw.

       If draw is a GLXWindow or GLXPixmap and attribute is set to
       GLX_PRESERVED_CONTENTS or GLX_LARGETST_PBUFFER, the contents of value
       are undefined. If attribute is not one of the attributes listed above,
       the contents of value are unedfined.

ERRORS
       A GLXBadDrawable is generated if draw is not a valid GLXDrawable.

SEE ALSO
       glXCreateWindow(), glXCreatePixmap(), glXCreatePbuffer(),
       glXGetFBConfigAttrib(), glXChooseFBConfig()

COPYRIGHT
       Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed
       under the SGI Free Software B License. For details, see
       http://oss.sgi.com/projects/FreeB/.

AUTHORS
       opengl.org

opengl.org			  03/16/2013		  GLXQUERYDRAWABLE(3G)

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