glGetColorTable returns in table the contents of the color table specified by target. No pixel transfer operations are performed, but pixel storage modes that are applicable to glReadPixels are performed. If a non-zero named buffer object is bound to the GL_PIXEL_PACK_BUFFER target (see glBindBuffer ) while a histogram table is requested, table is treated as a byte offset into the buffer object's data store. Color components that are requested in the specified format, but which are not included in the internal format of the color lookup table, are returned as zero. The assignments of internal color components to the components requested by format are Internal ComponentResulting Component Red Red Green Green Blue Blue Alpha Alpha Luminance Red Intensity Red
glGetColorTable is present only if ARB_imaging is returned when glGetString is called with an argument of GL_EXTENSIONS.
Copyright 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/.
glGetColorTable: man2/glGetColorTable.xml
glGetColorTable returns in table the contents of the color table specified by target. No pixel transfer operations are performed, but pixel storage modes that are applicable to glReadPixels are performed. If a non-zero named buffer object is bound to the GL_PIXEL_PACK_BUFFER target (see glBindBuffer ) while a histogram table is requested, table is treated as a byte offset into the buffer object's data store. Color components that are requested in the specified format, but which are not included in the internal format of the color lookup table, are returned as zero. The assignments of internal color components to the components requested by format are Internal Component Resulting Component Red Red Green Green Blue Blue Alpha Alpha Luminance Red Intensity Red
glGetColorTable is present only if ARB_imaging is returned when glGetString is called with an argument of GL_EXTENSIONS.