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NAME
     glXQueryGLXPbufferSGIX - return an attribute associated with
     a GLXPbuffer

C SPECIFICATION
     void glXQueryGLXPbufferSGIX ( Display *dpy,
          GLXPbuffer pbuf,
          int attribute,
          unsigned int *value)

PARAMETERS
     dpy        Specifies the connection to the X server.

      pbuf      Specifies the GLXPbuffer.

     attribute  Specifies attribute value to return.

     value      Returns the requested value.

DESCRIPTION
     glXQueryGLXPbufferSGIX returns the attribute of <pbuf>. Five
     attribute are defined:

     GLX_WIDTH_SGIX
          <value> returns the width of <pbuf>
     GLX_HEIGHT_SGIX
          <value> returns height of <pbuf>
     GLX_PRESERVED_CONTENTS_SGIX
          <value> returns a boolean value which specifies whether
          the  content  of <pbuf> is preserved or not when <pbuf>
          is lost.
     GLX_LARGEST_PBUFFER_SGIX
          <value>  returns  a  boolean  value   which   specifies
          wheteher  the  largest  pbuffer is to be allocated when
          the allocation of <pbuf> fails.
     GLX_FBCONFIG_ID_SGIX
          <value> returns  the  i.  d.  of  the  GLXFBConfig  for
          <pbuf>.  To get the GLXFBConfig for a GLXPbuffer, first
          retrieve the i. d.  for  the  FBConfig  and  then  call
          glXChooseFBConfigSGIX.

NOTES
     glXQueryGLXPbufferSGIX  is  part  of   the   GLX   extension
     SGIX_pbuffer,  not  part  of  the  core  GLX command set. If
     SGIX_pbuffer  is  included  in  the   string   returned   by
     glXQueryExtensionsString,  extension  SGIX_pbuffer  is  sup-
     ported by the connection.

ERRORS
     GLXBadPbufferSGIX is generated if  <pbuf>  is  not  a  valid
     GLXPbuffer.

SEE ALSO
     glXChooseFBConfigSGIX, glXCreateGLXPbufferSGIX,  glXQueryEx-
     tensionsString.

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