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Has an event handler already been added?
... exactly same delegate existance. Otherwise compare the properties individually like if(objA.Method.Name == objB.Method.Name && objA.Target.GetType().FullName == objB.Target.GetType().FullName).
– Sanjay
Aug 6 '14 at 13:21
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What Makes a Method Thread-safe? What are the rules?
Are there overall rules/guidelines for what makes a method thread-safe? I understand that there are probably a million one-off situations, but what about in general? Is it this simple?
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Import package.* vs import package.SpecificType [duplicate]
...ld it suppose any difference regarding overhead to write an import loading all the types within one package ( import java.* ); than just a specific type (i.e. import java.lang.ClassLoader )? Would the second one be a more advisable way to use than the other one?
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Convert light frequency to RGB?
...teachers may have told us (well mine did). Too bad, but in practice not usually fatal.
– Francis Davey
May 29 '10 at 22:58
1
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How can I measure the similarity between two images? [closed]
...is is just to do the following steps to each image:
scale to something small, like 64x64 or 32x32, disregard aspect ratio, use a combining scaling algorithm instead of nearest pixel
scale the color ranges so that the darkest is black and lightest is white
rotate and flip the image so that the ligh...
Creating a temporary directory in Windows?
... This seems a little dangerous. In particular, there's a chance (small, but non-zero, right?) that Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()) will return the name of a directory that already exists. Since Directory.CreateDirectory(tempDirectory) won't throw an exception if te...
How can I make a .NET Windows Forms application that only runs in the System Tray?
...of creating an application that only ever exists in the System Tray.
Basically change the Application.Run(new Form1()); line in Program.cs to instead start up a class that inherits from ApplicationContext, and have the constructor for that class initialize a NotifyIcon
static class Program
{
/...
Password masking console application
...comments, and modifying it to use SecureString instead of String, test for all control keys, and not error or write an extra "*" to the screen when the password length is 0, my solution is:
public static SecureString getPasswordFromConsole(String displayMessage) {
SecureString pass = new Secure...
Preview an image before it is uploaded
...file (image) before it is uploaded. The preview action should be executed all in the browser without using Ajax to upload the image.
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Shortcuts in Objective-C to concatenate NSStrings
...option has many upvotes, I think this is the best answer if you don't know all your strings upon construction. Every time you append a string, you're creating a lot of overhead. Using a mutable string removes that problem.
– Eli
Dec 22 '09 at 1:25
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