suse man page for glgethistogramparameter

GLGETHISTOGRAMPARAMETER(3G)											       GLGETHISTOGRAMPARAMETER(3G)

NAME
       glGetHistogramParameterfv, glGetHistogramParameteriv - get histogram parameters

C SPECIFICATION
       void glGetHistogramParameterfv( GLenum target,
				       GLenum pname,
				       GLfloat *params )
       void glGetHistogramParameteriv( GLenum target,
				       GLenum pname,
				       GLint *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
       glGetHistogramParameter is used to query parameter values for the current histogram or for a proxy.  The histogram state information may be
       queried	by  calling  glGetHistogramParameter  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
					     GL_HISTOGRAM_RED_SIZE     Red component counter size, in bits
					     GL_HISTOGRAM_GREEN_SIZE   Green component counter size, in bits

					 ------------------------------------------------------------------------
					 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
       glGetHistogramParameter is present only if GL_ARB_imaging is returned when glGetString 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 glGetHistogramParameter is executed between the execution of glBegin and the  corresponding  execution
       of glEnd.

SEE ALSO
       glGetHistogram(3G), glHistogram(3G)

														       GLGETHISTOGRAMPARAMETER(3G)