MACROMEDIA DREAMWEAVER 8-DREAMWEAVER API Spezifikationen PDF herunterladen (Seite 259)

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C-Level Extensibility 259

JSBool JS_GetElement()

Description

Reads a single element of an array object.

Arguments

JSContext *cx, JSObject *obj, unsigned int index, jsval *v

• cx is the opaque JSContext pointer that passed to the JavaScript function.

• obj is a pointer to an array object.

• index is an integer index into the array. The first element is index 0, and the last element is

index (

length - 1).

• v is a pointer to a jsval where the contents of the jsval in the array should be copied.

Returns

A Boolean value that indicates success (JS_TRUE) or failure (JS_FALSE).

JSBool JS_SetElement()

Description

Writes a single element of an array object.

Arguments

JSContext *cx, JSObject *obj, unsigned int index, jsval *v

• cx is the opaque JSContext pointer that was passed to the JavaScript function.

• obj is a pointer to an array object.

• index is an integer index into the array. The first element is index 0, and the last element is

index (

length - 1).

• v is a pointer to a jsval whose contents should be copied to the jsval in the array.

Returns

A Boolean value that indicates success (JS_TRUE) or failure (JS_FALSE).

JSBool JS_ExecuteScript()

Description

Compiles and executes a JavaScript string. If the script generates a return value, it returns in

*rval.

Arguments

JSContext *cx, JSObject *obj, char *script, unsigned int sz, jsval *rval

• cx is the opaque JSContext pointer that passed to the JavaScript function.

• obj is a pointer to the object in whose context the script executes. While the script is running,

the

this keyword is equal to this object. Usually this is the JSObject pointer that passed to

the JavaScript function.

• script is a string that contains JavaScript code. If the string size is not specified (see the sz

argument), the string must be null-terminated.

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