fglgethistogramparameter man page on IRIX

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fglGetHistogramParameter(3G)   OpenGL Reference	  fglGetHistogramParameter(3G)

NAME
     fglGetHistogramParameterfv, fglGetHistogramParameteriv - get histogram
     parameters

FORTRAN SPECIFICATION
     SUBROUTINE fglGetHistogramParameterfv( INTEGER*4 target,
					    INTEGER*4 pname,
					    CHARACTER*8 params )
     SUBROUTINE fglGetHistogramParameteriv( INTEGER*4 target,
					    INTEGER*4 pname,
					    CHARACTER*8 params )

PARAMETERS
     target  Must be one of GL_HISTOGRAM or GL_PROXY_HISTOGRAM.

     pname   The name of the parameter to be retrieved.	 Must be one of
	     GL_HISTOGRAM_WIDTH, GL_HISTOGRAM_FORMAT, GL_HISTOGRAM_RED_SIZE,
	     GL_HISTOGRAM_GREEN_SIZE, GL_HISTOGRAM_BLUE_SIZE,
	     GL_HISTOGRAM_ALPHA_SIZE, GL_HISTOGRAM_LUMINANCE_SIZE, or
	     GL_HISTOGRAM_SINK.

     params  Pointer to storage for the returned values.

DESCRIPTION
     fglGetHistogramParameter is used to query parameter values for the
     current histogram or for a proxy.	The histogram state information may be
     queried by calling fglGetHistogramParameter with a target of GL_HISTOGRAM
     (to obtain information for the current histogram table) or
     GL_PROXY_HISTOGRAM (to obtain information from the most recent proxy
     request) and one of the following values for the pname argument:

	  _______________________________________________________________
	  Parameter		    Description
	  _______________________________________________________________
	  GL_HISTOGRAM_WIDTH	    Histogram table width
	  GL_HISTOGRAM_FORMAT	    Internal format
	  GL_HISTOGRAM_RED_SIZE	    Red component counter size, in bits
	  GL_HISTOGRAM_GREEN_SIZE   Green component counter size, in bits

									Page 1

fglGetHistogramParameter(3G)   OpenGL Reference	  fglGetHistogramParameter(3G)

     ________________________________________________________________________
      Parameter			    Description
      _______________________________________________________________________
      GL_HISTOGRAM_BLUE_SIZE	    Blue component counter size, in bits
      GL_HISTOGRAM_ALPHA_SIZE	    Alpha component counter size, in bits
      GL_HISTOGRAM_LUMINANCE_SIZE   Luminance component counter size, in bits
      GL_HISTOGRAM_SINK		    Value of the sink parameter
      _______________________________________________________________________

NOTES
     fglGetHistogramParameter is present only if GL_ARB_imaging is returned
     when fglGetString is called with an argument of GL_EXTENSIONS.

ERRORS
     GL_INVALID_ENUM is generated if target is not one of the allowable
     values.

     GL_INVALID_ENUM is generated if pname is not one of the allowable values.

     GL_INVALID_OPERATION is generated if fglGetHistogramParameter is executed
     between the execution of fglBegin and the corresponding execution of
     fglEnd.

SEE ALSO
     fglGetHistogram, fglHistogram

									Page 2

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