disables any drawing to the output . useful for sizing calculations . concode_field_sep double scalar concode_elem_sep boolean painting concode_elem_sep Color foregroundColour concode_elem_sep Color backgroundColour concode_elem_sep Font font concode_field_sep placeholderType placeHolder
void function ( ) { Color loc0 = foregroundColour ; foregroundColour = backgroundColour ; backgroundColour = loc0 ; }