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Programmatically Determine a Duration of a Locked Workstation?

How can one determine, in code, how long the machine is locked? 8 Answers 8 ...
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What is the ellipsis (…) for in this method signature?

In the App Engine docs , what is the ellipsis ( JID... ) for in this method signature? 5 Answers ...
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How to test valid UUID/GUID?

How to check if variable contains valid UUID/GUID identifier? 12 Answers 12 ...
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JS: iterating over result of getElementsByClassName using Array.forEach

I want to iterate over some DOM elements, I'm doing this: 11 Answers 11 ...
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WPF: Grid with column/row margin/padding?

Is it easily possible to specify a margin and/or padding for rows or columns in a WPF Grid? 15 Answers ...
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What effect(s) can the virtual keyword have in Entity Framework 4.1 POCO Code First?

Does the virtual keyword has an effect when used on the properties in EF Code First?. Can someone describe all of its ramifications in different situations? ...
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How do I find a default constraint using INFORMATION_SCHEMA?

I'm trying to test if a given default constraint exists. I don't want to use the sysobjects table, but the more standard INFORMATION_SCHEMA. ...
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Passing variable arguments to another function that accepts a variable argument list

So I have 2 functions that both have similar arguments 9 Answers 9 ...
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Can you make valid Makefiles without tab characters?

On my system (Mac OS X), make seems to require that that Makefiles have a tab character preceding the the content of each command line, or it throws a syntax error. ...
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Remove all special characters, punctuation and spaces from string

I need to remove all special characters, punctuation and spaces from a string so that I only have letters and numbers. 16 A...