NAME
	  fglIsTexture - determine if a	name corresponds to a texture


     FORTRAN SPECIFICATION
	  LOGICAL*1 fglIsTexture( INTEGER*4 texture )


     PARAMETERS
	  texture  Specifies a value that may be the name of a
		   texture.

     DESCRIPTION
	  fglIsTexture returns GL_TRUE if texture is currently the
	  name of a texture.  If texture is zero, or is	a non-zero
	  value	that is	not currently the name of a texture, or	if an
	  error	occurs,	fglIsTexture returns GL_FALSE.

     NOTES
	  fglIsTexture is available only if the	GL version is 1.1 or
	  greater.

     ERRORS
	  GL_INVALID_OPERATION is generated if fglIsTexture is
	  executed between the execution of fglBegin and the
	  corresponding	execution of fglEnd.

     SEE ALSO
	  fglBindTexture, fglCopyTexImage1D, fglCopyTexImage2D,
	  fglDeleteTextures, fglGenTextures, fglGet,
	  fglGetTexParameter, fglTexImage1D, fglTexImage2D,
	  fglTexParameter