ps_setdash Sets appearance of a dashed line &reftitle.description; boolps_setdash resourcepsdoc floaton floatoff Sets the length of the black and white portions of a dashed line. &reftitle.parameters; psdoc Resource identifier of the postscript file as returned by ps_new. on The length of the dash. off The length of the gap between dashes. &reftitle.returnvalues; &return.success; &reftitle.seealso; ps_setpolydash