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html5 - canvas element - Multiple layers

Without any extension library, is it possible to have multiple layers in the same canvas element? 7 Answers ...
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Objective-C: difference between id and void *

...erence to some random Objective-C object of unknown class" There are additional semantic differences: Under GC Only or GC Supported modes, the compiler will emit write barriers for references of type id, but not for type void *. When declaring structures, this can be a critical difference. De...
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Set custom HTML5 required field validation message

I have one form with many input fields. I have put html5 validations 11 Answers 11 ...
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How do I define and use an ENUM in Objective-C?

I declared an enum in my implementation file as shown below, and declared a variable of that type in my interface as PlayerState thePlayerState; and used the variable in my methods. But I am getting errors stating that it is undeclared. How do I correctly declare and use a variable of type PlayerSta...
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UIView with rounded corners and drop shadow?

I’ve been working on an application for a couple of years and received a simple design request: Round the corners on a UIView and add a drop shadow.To do as given below. ...
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Any way to properly pretty-print ordered dictionaries?

...n. I use it a lot for testing and debugging. I frequently use the width option to make sure the output fits nicely within my terminal window. ...
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How do I find out which keystore was used to sign an app?

...d_key'. Keytool is part of Java, so make sure your PATH has Java installation dir in it. share | improve this answer | follow | ...
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Duplicate headers received from server

...s. Do a replace on commas to remove them and you should be fine. My function to make a valid filename is below. public static string MakeValidFileName(string name) { string invalidChars = Regex.Escape(new string(System.IO.Path.GetInvalidFileNameChars())); string invalidReS...
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Using Font Awesome icon for bullet points, with a single list item element

... Solution: http://jsfiddle.net/VR2hP/ ul li:before { font-family: 'FontAwesome'; content: '\f067'; margin:0 5px 0 -15px; color: #f00; } Here's a blog post which explains this technique in-depth. ...
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Local file access with JavaScript

Is there local file manipulation that's been done with JavaScript? I'm looking for a solution that can be accomplished with no install footprint like requiring Adobe AIR . ...