Method

AravisEvaluatorset_sub_expression

Declaration [src]

void
arv_evaluator_set_sub_expression (
  ArvEvaluator* evaluator,
  const char* name,
  const char* expression
)

Description [src]

Assign a formula to a sub-expression. If expression == NULL, the sub-expression previously assigned to name will be removed. A sub-expression may not reference another sub-expression.

Available since:

0.6.0

Parameters

`name`	`const char*`
	Sub-expression name.
	The data is owned by the caller of the function.
	The string is a NUL terminated UTF-8 string.
`expression`	`const char*`
	Sub-pexression formula.
	The argument can be `NULL`.
	The data is owned by the caller of the function.
	The string is a NUL terminated UTF-8 string.