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POHow to fix: "NPMethod called on non-NPObject wrapped JSObject" error?
 

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  1. POHow to fix: "NPMethod called on non-NPObject wrapped JSObject" error?
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    <p>HI,</p> <p>I am trying to call a method defined in flash object from javascript (firefox-3.0/Linux) and getting the exception: "NPMethod called on non- NPObject wrapped JSObject".</p> <p>If I use eval on window.document.flash_object.func() it throws "NPMethod called on non-NPObject wrapped JSObject".</p> <p>Where as, if I define a javascript function in side the page as given below:</p> <p>function myFunc() { return flash_object.func();</p> <p>}</p> <p>and later do a eval of window.document.myFunc() it works fine.</p> <p>I am running the two evals through a test framework called Selenium. [eval(window.document.flash_object.func()) and eval(window.document.myFunc())].</p> <p>The issues seems to be issue with invoking the flash-object method without passing 'this' reference. Here is sample html/js code to reproduce this issue: "NPMethod called on non-NPObject wrapped JSObject".</p> <pre><code>&lt;script&gt; function changeColor() { mymovie.changeColor(); } function getColorNP() { var func = mymovie.getColor; func(); } &lt;/script&gt; &lt;button type="button" onclick="getColorNP();"&gt;getColorNP&lt;/button&gt; &lt;button type="button" onclick="getColor();"&gt;getColor&lt;/button&gt; getColorNP throws the exception Error: NPMethod called on non-NPObject wrapped JSObject! Source File: http://my.host/Colors/colors.html getColorNP throws the exception Error: NPMethod called on non-NPObject wrapped JSObject! Source File: http://my.host/Colors/colors.html </code></pre> <p>Now, question to javascript gurus: Given flash object and a method name, how do I invoke the method on that object. Lets say, a function takes two arguments: a flash object, and a method name as string. I want to do an eval on object.method() inside that function. Is this possible, if so, can you please explain me how this can be done.</p> <p>As flash object's method is not a standard javascript function, i think its not possible to function binding through bind(). Is there any other alternative?</p> <p>Thx, Chandra</p>
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