GLGETMINMAXPARAMETER(3G)GLGETMINMAXPARAMETER(3G)NAME
glGetMinmaxParameterfv, glGetMinmaxParameteriv - get minmax parameters
C SPECIFICATION
void glGetMinmaxParameterfv( GLenum target,
GLenum pname,
GLfloat *params )
void glGetMinmaxParameteriv( GLenum target,
GLenum pname,
GLint *params )
PARAMETERS
target Must be GL_MINMAX.
pname The parameter to be retrieved. Must be one of GL_MINMAX_FORMAT or GL_MINMAX_SINK.
params A pointer to storage for the retrieved parameters.
DESCRIPTION
glGetMinmaxParameter retrieves parameters for the current minmax table by setting pname to one of the following values:
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Parameter Description
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GL_MINMAX_FORMAT Internal of minmax table
GL_MINMAX_SINK Value of the sink parameter
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NOTES
glGetMinmaxParameter 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 GL_MINMAX.
GL_INVALID_ENUM is generated if pname is not one of the allowable values.
GL_INVALID_OPERATION is generated if glGetMinmaxParameter is executed between the execution of glBegin and the corresponding execution of
glEnd.
SEE ALSO glMinmax(3G), glGetMinmax(3G)GLGETMINMAXPARAMETER(3G)
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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:
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Parameter Description
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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
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Parameter Description
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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
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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)