MACROMEDIA DREAMWEAVER MX 2004-EXTENDING DREAMWEAVER Especificações descarregar pdf (Página 463)

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The C-level API 463

Arguments

JSContext *cx, jsval v, long *lp

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

■ The v argument is the jsval structure from which the integer is to be extracted.

■ The lp argument is a pointer to a 4-byte integer. This function stores the converted value

*lp.

Returns

A Boolean value: JS_TRUE indicates success; JS_FALSE indicates failure.

JSBool JS_ValueToDouble()

Description

This function extracts a function argument from a jsval structure, converts it to a double (if

possible), and passes the converted value back to the caller.

Arguments

JSContext *cx, jsval v, double *dp

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

■ The v argument is the jsval structure from which the double is to be extracted.

■ The dp argument is a pointer to an 8-byte double. This function stores the converted

value in

*dp.

Returns

A Boolean value: JS_TRUE indicates success; JS_FALSE indicates failure.

JSBool JS_ValueToBoolean()

Description

This function extracts a function argument from a jsval structure, converts it to a Boolean

value (if possible), and passes the converted value back to the caller.

Arguments

JSContext *cx, jsval v, JSBool *bp

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

■ The v argument is the jsval structure from which the Boolean value is to be extracted.

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