glClearParameteriEXT man page on Solaris

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GLCLEARPARAMETEREXT(3gl)			      GLCLEARPARAMETEREXT(3gl)

NAME
       glClearParameterfEXT,	glClearParameteriEXT,	glClearParameterfvEXT,
       glClearParameterivEXT - set gradient clear parameters

C SPECIFICATION
       void glClearParameterfEXT( GLenum pname,
				  const GLfloat param )
       void glClearParameteriEXT( GLenum pname,
				  const GLint param )

PARAMETERS
       pname  Specifies the symbolic name of  a	 single-value  gradient	 clear
	      parameter,    must    be	  GL_GRADIENT_CLEAR_X_EXT,   GL_GRADI‐
	      ENT_CLEAR_Y_EXT,	 GL_GRADIENT_CLEAR_WIDTH_EXT	or   GL_GRADI‐
	      ENT_CLEAR_HEIGHT_EXT.

       param  Specifies the value of pname.

C SPECIFICATION
       void glClearParameterfvEXT( GLenum pname,
				   const GLfloat *params )
       void glClearParameterivEXT( GLenum pname,
				   const GLint *params )

PARAMETERS
       pname  Specifies	 the symbolic name of a gradient clear parameter, must
	      be GL_GRADIENT_CLEAR_X_EXT,  GL_GRADIENT_CLEAR_Y_EXT,  GL_GRADI‐
	      ENT_CLEAR_WIDTH_EXT,    GL_GRADIENT_CLEAR_HEIGHT_EXT,  GL_GRADI‐
	      ENT_CLEAR_COLOR_TOP_EXT or GL_GRADIENT_CLEAR_COLOR_BOTTOM_EXT.

       params Specifies a pointer to an array where the	 value	or  values  of
	      pname are stored

DESCRIPTION
       The  gradient  clear  extension	allows	the  an application to clear a
       region of the color buffer to a gradient color that varies linearly  in
       the  vertical direction.	 The color gradient is specified by the values
       GL_GRADIENT_CLEAR_COLOR_TOP_EXT and  GL_GRADIENT_CLEAR_COLOR_BOTTOM_EXT
       which  define the colors at the top and bottom of the clear region. The
       lower left corner of the clear region is specified in  window  relative
       coordinates  by	GL_GRADIENT_CLEAR_X_EXT	 and  GL_GRADIENT_CLEAR_Y_EXT.
       The width  and  height  of  the	clear  region  are  set	 by  GL_GRADI‐
       ENT_CLEAR_WIDTH_EXT and GL_GRADIENT_CLEAR_HEIGHT_EXT

       glClearParameter	 assigns the value or values in params to the gradient
       clear parameter specified as pname.  The following symbols are accepted
       for pname:

       GL_GRADIENT_CLEAR_X_EXT
		 Window relative x coordinate of lower left of clear region.

       GL_GRADIENT_CLEAR_Y_EXT
		 Window relative y coordinate of lower left of clear region.

       GL_GRADIENT_CLEAR_WIDTH_EXT
		 Width of clear region in window coordinates.

       GL_GRADIENT_CLEAR_HEIGHT_EXT
		 Height of clear region in window coordinates.

       GL_GRADIENT_CLEAR_COLOR_TOP_EXT
		 RGBA of color at top of clear region.

       GL_GRADIENT_CLEAR_COLOR_BOTTOM
		 RBGA of color at bottom of clear region.

NOTES
ERRORS
       GL_INVALID_ENUM	is  generated  if  pname  is  not  one of the accepted
       defined values.

ASSOCIATED GETS
       glGet

SEE ALSO
       glClearColor, glClearColorModeEXT.

				24 September 02	      GLCLEARPARAMETEREXT(3gl)
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