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The quest for the Excel custom function tooltip

This question has been asked before , but each time the accepted answer is simply a resignation to provide function descriptions using Application.MacroOptions ( VBA6 ) ( VBA7 ), but this information does not actually appear as a tooltip, so it does not solve my problem. ...
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Python argparse mutual exclusive group

... add_mutually_exclusive_group doesn't make an entire group mutually exclusive. It makes options within the group mutually exclusive. What you're looking for is subcommands. Instead of prog [ -a xxxx | [-b yyy -c zzz]], you'd have:...
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Why does this assert throw a format exception when comparing structures?

I'm trying to assert the equality of two System.Drawing.Size structures, and I'm getting a format exception instead of the expected assert failure. ...
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How to properly URL encode a string in PHP?

I'm making a search page, where you type a search query and the form is submitted to search.php?query=your query . What PHP function is the best and that I should use for encoding/decoding the search query? ...
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What do the different readystates in XMLHttpRequest mean, and how can I use them?

XMLHttpRequest has 5 readyState s, and I only use 1 of them (the last one, 4 ). 5 Answers ...
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Implementing slicing in __getitem__

I am trying to implement slice functionality for a class I am making that creates a vector representation. 5 Answers ...
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Cleanest and most Pythonic way to get tomorrow's date?

What is the cleanest and most Pythonic way to get tomorrow's date? There must be a better way than to add one to the day, handle days at the end of the month, etc. ...
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WPF Application that only has a tray icon

I am a total WPF newbie and wonder if anyone could give me some pointers how to write an application that starts minimized to tray. The idea is that it periodically fetches an RSS Feed and creates a Toaster-Popup when there are new feeds. ...
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Why should Java ThreadLocal variables be static

... Because if it were an instance level field, then it would actually be "Per Thread - Per Instance", not just a guaranteed "Per Thread." That isn't normally the semantic you're looking for. Usually it's holding something like o...
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Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate

... @NotNull is a JSR 303 Bean Validation annotation. It has nothing to do with database constraints itself. As Hibernate is the reference implementation of JSR 303, however, it intelligently picks up on these constraints and translat...