centos man page for glgethistogramparameter

Query: glgethistogramparameter

OS: centos

Section: 3g

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

GLGETHISTOGRAMPARAME(3G)					   OpenGL Manual					  GLGETHISTOGRAMPARAME(3G)

NAME
glGetHistogramParameter - 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 format | +----------------------------------+-------------------------------------------+ |GL_HISTOGRAM_RED_SIZE | Red component counter size, in bits | +----------------------------------+-------------------------------------------+ |GL_HISTOGRAM_GREEN_SIZE | Green component counter size, in bits | +----------------------------------+-------------------------------------------+ |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 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(), glHistogram()
COPYRIGHT
Copyright (C) 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 06/10/2014 GLGETHISTOGRAMPARAME(3G)
Related Man Pages
glgethistogramparameter(3g) - mojave
glgetcolortableparameteriv(3g) - centos
glgethistogram(3g) - centos
glgetminmaxparameter(3g) - centos
glhistogram(3g) - centos
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