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How to clear the canvas for redrawing

After experimenting with composite operations and drawing images on the canvas I'm now trying to remove images and compositing. How do I do this? ...
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What are the respective advantages/limitations of Amazon RDS vs. EC2 with MySQL? [closed]

...ovide very good (though not maximum) performance out of the box. The management console is fantastic and it's easy to upgrade instances. High availability and read only slaves are a click away. It's REALLY awesome. Short answer: Go with RDS. Still on the fence? Go with RDS!!! if you enjoy headaches...
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What is the use of interface constants?

... static and final. I haven't seen any examples of these so far. What are some of the use cases of these Interface Constants and can I see some in the Java Standard Library? ...
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Generating HTML email body in C#

...Html = true; md.Subject = "Test of MailDefinition"; ListDictionary replacements = new ListDictionary(); replacements.Add("{name}", "Martin"); replacements.Add("{country}", "Denmark"); string body = "<div>Hello {name} You're from {country}.</div>"; MailMessage msg = md.CreateMailMessag...
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Biggest advantage to using ASP.Net MVC vs web forms

What are some of the advantages of using one over the other? 19 Answers 19 ...
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How to set versionName in APK filename using gradle?

...ng to set a specific version number in the gradle auto-generated APK filename. 14 Answers ...
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How to tell git to use the correct identity (name and email) for a given project?

...should do it. I am expecting to have multiple local repositories for the same project, notably in order to switch between branches more easily without having to recompile everything. Maybe it's just a bad svn habit. Thanks. – Martin Jambon May 24 '11 at 20:50 ...
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What are the key differences between Apache Thrift, Google Protocol Buffers, MessagePack, ASN.1 and

All of these provide binary serialization, RPC frameworks and IDL. I'm interested in key differences between them and characteristics (performance, ease of use, programming languages support). ...
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Undefined reference to static constexpr char[]

...to have a static const char array in my class. GCC complained and told me I should use constexpr , although now it's telling me it's an undefined reference. If I make the array a non-member then it compiles. What is going on? ...
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'System.Net.Http.HttpContent' does not contain a definition for 'ReadAsAsync' and no extension metho

I made a console app to consume a Web API I just made. The console app code does not compile. It gives me the compilation error: ...