How to register a global hotkey for your application in C#

How to register a global hotkey for your application in C#

Register a hotkey for your application that can be triggered even if your form is minimized and does not have focus. More »

Visual Studio 2013

Visual Studio 2013

Visual Studio 2013 is now available. Make sure to upgrade to the latest version of Visual Studio. More »

How to download a file in C# (progressbar and download speed)

How to download a file in C# (progressbar and download speed)

Learn how to download files in C# while displaying the percentage and the download speed. More »

UDP hole punching implementation in C#

UDP hole punching implementation in C#

Learn how to implement UDP hole punching so you can make your clients life a lot easier by not forcing them to open ports on their end. More »

 

How to allow only one application instance

The following code will ensure that your application can only have one instance active. If the user tries to open the application again while the application is already running then the application will simply quit (in this case after showing a message).

For this to work we will need to modify the Program.cs to check with the use of Mutex if the application is already running or not before we open the main form. Our check will take place in the Main method.

Your code in Program.cs should look like this:

Feel free to modify the example to suit your needs.

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Get value between two strings

You might find this snippet particular useful in cases where you want to get a value between two other values.

This takes advantage of the string’s Split overload to pass an array of two values. This will result in the string being split twice, once for the first value in the array and once more for the second value. The result will be that the second value in the array that Split returns is the actual value between the first and the second value we passed as argument.

Code:

Example:

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How to disable FlashPlayerPlugin process

With the release of Flash player 11.3 Adobe has changed their player so it uses a different process when playing flash videos in the browser. The main reason for that was to ensure that if for whatever reason the flash player encounters a problem the browser will be unaffected. In some cases users expressed that the new process was causing issues for them which means that the ideal thing to do in that case is to disable flash’s protected mode.

In order to disable flash’s protected mode follow the next steps:

  1. Navigate to C:\Windows\SysWOW64\Macromed\Flash (Windows 64-bit systems) or C:\Windows\System32\Macromed (Windows 32-bit systems) depending on what Windows bit version you are running
  2. Locate and open the file with the name mms.cfg
  3. Then simply change the line ProtectedMode line from ProtectedMode=1 to ProtectedMode=0
  4. Restart your browser

Now flash player should no longer start a separate process everytime a flash video is being played in your browser.

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How to get the short path of a directory

In some occasions it might be necessary to use a directory’s short path. This is possible with the use of the Windows GetShortPathName function.

Implementation:

Simply call the GetShortPath with the directory you want to get the short path as an argument.

Example:

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