PropertyExpression.newForPspec

gtk.property_expression.PropertyExpression newForPspec(gtk.expression.Expression expression,  gobject.param_spec.ParamSpec pspec)

Creates an expression that looks up a property.

The object to use is found by evaluating the expression, or using the this argument when expression is NULL.

If the resulting object conforms to this_type, its property specified by pspec will be queried. Otherwise, this expression's evaluation will fail.

Parameters

`expression`	Expression to evaluate to get the object to query or `NULL` to query the `this` object
`pspec`	the [gobject.param_spec.ParamSpec] for the property to query

Returns

a new [gtk.expression.Expression]