StyleSetLineSpacing

Sets the line spacing height of a paragraph.

NUM_BIN_4	refHandle	Object handle (paragraph or paragraph style).
NUM_BIN_4	rule	Sizing rule (see Line spacing rules constants).
NUM_E(15,9)	spacing	Spacing value: in the selected measurement unit (centimeters by default) if the rule is different from _SPACING_RULE_AUTO. as a line height multiple if the rule equals _SPACING_RULE_AUTO Output parameter.
NUM_BIN_4	rc	Function return code (see Error codes constants). Output parameter.