MACROMEDIA DREAMWEAVER MX 2004-EXTENDING DREAMWEAVER Dokumentacja Pobierz pdf (Strona 467)

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The C-level API 467

■ Typically, this argument is passed in and converted using the JS_ValueToObject()

function.

Returns

A pointer to a null-terminated string. The caller should not free this string when it finishes.

JSObject *JS_NewArrayObject()

Description

This function creates a new object that contains an array of JSVals.

Arguments

JSContext *cx, unsigned int length, jsval *v

■ The cx argument is the opaque JSContext pointer that passes to the JavaScript function.

■ The length argument is the number of elements that the array can hold.

■ The v argument is an optional pointer to the jsvals to be stored in the array. If the

return value is not

null, v is an array that contains length elements. If the return value is

null, the initial content of the array object is undefined and can be set using the

JS_SetElement() function.

Returns

A pointer to a new array object or the value null upon failure.

long JS_GetArrayLength()

Description

Given a pointer to an array object, this function gets the number of elements in the array.

Arguments

JSContext *cx, JSObject *obj

■ The cx argument is the opaque JSContext pointer that passes to the JavaScript function.

■ The obj argument is a pointer to an array object.

Returns

The number of elements in the array or -1 upon failure.

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