Forcing a Single Instance of an WinForms App

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Phil Jones - 19 Dec 2004 06:13 GMT

How would you go about ensuring only a single instance of a WinForms app
runs at any one time on a machine?
For example like Outlook Express - where each successive attempt to open it
brings the single running instance into focus.

Thanks everyone!
===
Phil

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Peter Jausovec - 19 Dec 2004 09:53 GMT

Hi Phil,

Take a look at this link:
http://www.codeproject.com/csharp/singleinstance.asp

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Regards,
Peter Jausovec
(http://blog.jausovec.net)

> How would you go about ensuring only a single instance of a WinForms app
> runs at any one time on a machine?
[quoted text clipped - 4 lines]
> ===
> Phil

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Herfried K. Wagner [MVP] - 19 Dec 2004 12:35 GMT

"Phil Jones" <phil_newsgroup@hotmail.com> schrieb:

> How would you go about ensuring only a single instance of a WinForms app
> runs at any one time on a machine?
> For example like Outlook Express - where each successive attempt to open
> it brings the single running instance into focus.

<URL:http://www.yoda.arachsys.com/csharp/faq/#one.application.instance>

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M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/

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Phil Jones - 19 Dec 2004 20:52 GMT

Thanks Guys! That'll sort me out. Cheers.

---
Phil

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Forcing a Single Instance of an WinForms App

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