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GLCOPYCOLORSUBTABLE(3G)				       GLCOPYCOLORSUBTABLE(3G)

NAME
       glCopyColorSubTable - respecify a portion of a color table

C SPECIFICATION
       void glCopyColorSubTable( GLenum target,
				 GLsizei start,
				 GLint x,
				 GLint y,
				 GLsizei width )

PARAMETERS
       target  Must be one of GL_COLOR_TABLE, GL_POST_CONVOLUTION_COLOR_TABLE,
	       or GL_POST_COLOR_MATRIX_COLOR_TABLE.

       start   The starting index of the portion of  the  color	 table	to  be
	       replaced.

       x, y    The  window coordinates of the left corner of the row of pixels
	       to be copied.

       width   The number of table entries to replace.

DESCRIPTION
       glCopyColorSubTable is used to respecify	 a  contiguous	portion	 of  a
       color  table  previously defined using glColorTable.  The pixels copied
       from the framebuffer replace the portion of  the	 existing  table  from
       indices	start  to $"start"~+~"x"~-~1$, inclusive.  This region may not
       include any entries outside the range of the color table, as was origi‐
       nally specified.	 It is not an error to specify a subtexture with width
       of 0, but such a specification has no effect.

NOTES
       glCopyColorSubTable is present only if GL_ARB_imaging is returned  when
       glGetString is called with an argument of GL_EXTENSIONS.

ERRORS
       GL_INVALID_VALUE	 is  generated	if  target is not a previously defined
       color table.

       GL_INVALID_VALUE is generated if target is not  one  of	the  allowable
       values.

       GL_INVALID_VALUE is generated if $"start"~+~"x"~>~width$.

       GL_INVALID_OPERATION  is	 generated  if glCopyColorSubTable is executed
       between the execution of glBegin and  the  corresponding	 execution  of
       glEnd.

ASSOCIATED GETS
       glGetColorTable, glGetColorTableParameter

SEE ALSO
       glColorSubTable(3G),  glColorTableParameter(3G),	 glCopyColorTable(3G),
       glCopyColorSubTable(3G), glGetColorTable(3G)

						       GLCOPYCOLORSUBTABLE(3G)

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