C SPECIFICATION
void GLAPIENTRY glGetColorTableParameterfv( GLenum target,
GLenum pnam )
void GLAPIENTRY glGetColorTableParameteriv( GLenum target,
GLenum pnam )
delim $$
PARAMETERS
target The target color table. Must be GL_COLOR_TABLE,
GL_POST_CONVOLUTION_COLOR_TABLE,
GL_POST_COLOR_MATRIX_COLOR_TABLE, GL_PROXY_COLOR_TABLE,
GL_PROXY_POST_CONVOLUTION_COLOR_TABLE,
GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE.
pnam The symbolic name of a color lookup table parameter. Must be
one of GL_COLOR_TABLE_BIAS, GL_COLOR_TABLE_SCALE,
GL_COLOR_TABLE_FORMAT, GL_COLOR_TABLE_WIDTH,
GL_COLOR_TABLE_RED_SIZE, GL_COLOR_TABLE_GREEN_SIZE,
GL_COLOR_TABLE_BLUE_SIZE, GL_COLOR_TABLE_ALPHA_SIZE,
GL_COLOR_TABLE_LUMINANCE_SIZE, or
GL_COLOR_TABLE_INTENSITY_SIZE.
_param3 A pointer to an array where the values of the parameter will be
stored.
DESCRIPTION
Returns parameters specific to color table target.
When pnam is set to GL_COLOR_TABLE_SCALE or GL_COLOR_TABLE_BIAS,
glGetColorTableParameter returns the color table scale or bias parame-
ters for the table specified by target. For these queries, target must
be set to GL_COLOR_TABLE, GL_POST_CONVOLUTION_COLOR_TABLE, or
GL_POST_COLOR_MATRIX_COLOR_TABLE and _param3 points to an array of four
elements, which receive the scale or bias factors for red, green, blue,
and alpha, in that order.
glGetColorTableParameter can also be used to retrieve the format and
size parameters for a color table. For these queries, set target to
either the color table target or the proxy color table target. The
format and size parameters are set by glColorTable.
The following table lists the format and size parameters that may be
queried. For each symbolic constant listed below for pnam, _param3
must point to an array of the given length, and receive the values
indicated.
-------------------------------------------------------------------
Parameter N Meaning
when glGetString is called with an argument of GL_EXTENSIONS.
ERRORS
GL_INVALID_ENUM is generated if target or pnam is not an acceptable
value.
GL_INVALID_OPERATION is generated if glGetColorTableParameter is exe-
cuted between the execution of glBegin and the corresponding execution
of glEnd.
SEE ALSO
glColorTable, glTexParameter, glColorTableParameter
GLGETCOLORTABLEPARAMETER(3G)
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