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Friday, November 06, 2009 7:00 AM

Signs that the symbols in your stack trace are wrong

It makes no sense.
Posted by oldnewthing | 7 Comments
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Friday, October 23, 2009 7:00 AM

If you have to cast, you can't afford it

Casts are the source of most alignment problems.
Posted by oldnewthing | 41 Comments
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Friday, October 16, 2009 7:00 AM

Important window message numbers to memorize

You probably know them already.
Posted by oldnewthing | 11 Comments
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Thursday, October 15, 2009 7:00 AM

Don't use global state to manage a local problem, practical exam

Changing application settings for a single worksheet.
Posted by oldnewthing | 3 Comments
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Friday, October 09, 2009 7:00 AM

LoadString can load strings with embedded nulls, but your wrapper function might not

Check that those double-null-terminated strings really are.
Posted by oldnewthing | 14 Comments
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Thursday, October 08, 2009 7:00 AM

What is the format of a double-null-terminated string with no strings?

It's just a single null terminator.
Posted by oldnewthing | 31 Comments
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Wednesday, October 07, 2009 7:00 AM

The ways people mess up IUnknown::QueryInterface, episode 3

An example of how it causes problems.
Posted by oldnewthing | 20 Comments
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Thursday, October 01, 2009 7:00 AM

In the search for the subtle source of the problem, you sometimes overlook the obvious one

Where did this duplicate GUID come from?
Posted by oldnewthing | 36 Comments
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Wednesday, September 30, 2009 7:00 AM

Why do messages posted by PostThreadMessage disappear?

The only thread message you can meaningfully post to a thread displaying UI is WM_NULL.
Posted by oldnewthing | 8 Comments
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Friday, September 25, 2009 7:00 AM

The ways people mess up IUnknown::QueryInterface, episode 2

Sure, we do that.
Posted by oldnewthing | 35 Comments
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Wednesday, September 23, 2009 7:00 AM

The COM marshaller uses the COM task allocator to allocate and free memory

If you are allocating memory for COM to free, you need to use the COM task allocator.
Posted by oldnewthing | 17 Comments
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Monday, September 21, 2009 7:00 AM

What is the logic behind the thumb size and position calculation in scroll bars?

It's just proportional, up to a point.
Posted by oldnewthing | 16 Comments
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Monday, September 14, 2009 7:00 AM

Can you create an information context for the display?

Why bother?
Posted by oldnewthing | 9 Comments
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Friday, September 11, 2009 7:00 AM

If you're handling an out of memory exception, you probably shouldn't allocate memory

Encountering the same problem you're trying to report.
Posted by oldnewthing | 14 Comments
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Friday, September 04, 2009 7:00 AM

Reading the error message carefully can help you see how the computer misinterpreted what you typed

Look carefully at what the error message complaining about; it may not be what you expect.
Posted by oldnewthing | 17 Comments
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