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Hi all,

I have a program in C# that runs from startup as tray icon, and when a user clicks on the icons,
I want to pass the filename to the program, and the form to appear....
Please help me.... :(
Posted 29-Jun-13 21:09pm
Richard MacCutchan 30-Jun-13 3:31am
Your program needs to capture the click event and use a FileDialog to get the filename.
zkuzet 30-Jun-13 3:40am
What invite by clicking on the icon. Some executive file or image that appears on the form?
ThePhantomUpvoter 30-Jun-13 10:28am +to+a+running+instance
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Solution 3

You describe a "single instance application". Microsoft provides a framework for them, see a description at[^].
Note that calls will come from a different thread than the GUI thread of the running application, which means that you have to Invoke the appropriate methods.
For the association of file types with your program, see the answers above.
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Solution 1

If I got you, then you have to write a Shell Extension for that, see for instance the Code Project article: "Creating a shell extension with C#"[^].

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