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November 2004 - Posts

Tuesday, November 30, 2004 7:00 AM

What's the difference between GetKeyState and GetAsyncKeyState?

GetKeyState returns the virtualized key state; GetAsyncKeyState returns the current key state.
Posted by oldnewthing | 14 Comments
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Monday, November 29, 2004 7:00 AM

Why doesn't the RunAs program accept a password on the command line?

Because that would be inviting a security hole.
Posted by oldnewthing | 56 Comments
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Friday, November 26, 2004 7:00 AM

Simple things you can do with the ShellExecuteEx function

It's the general way of executing verbs in the shell.
Posted by oldnewthing | 29 Comments
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Thursday, November 25, 2004 7:00 AM

A sample of desktop icon text effects

So you can see what they look like.
Posted by oldnewthing | 66 Comments
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Wednesday, November 24, 2004 7:00 AM

Why can't you drop directly onto a taskbar button?

There is no GetDropTargetFromWindow function.
Posted by oldnewthing | 73 Comments
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Tuesday, November 23, 2004 7:00 AM

Why do folders like "My Pictures" come back after I delete them?

Because some program asked for it to be re-created.
Posted by oldnewthing | 47 Comments
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Monday, November 22, 2004 7:01 AM

When people ask for security holes as features: World-writable files

It's getting harder to protect people from themselves.
Posted by oldnewthing | 39 Comments
Friday, November 19, 2004 7:00 AM

The various ways of sending a message

Working through the variations of SendMessage.
Posted by oldnewthing | 50 Comments
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Thursday, November 18, 2004 7:01 AM

Am I sorry or not?

Duelling websites clearly calls for a competition.
Posted by oldnewthing | 14 Comments
Thursday, November 18, 2004 7:00 AM

If a program and a folder have the same name, the shell prefers the program

For compatibility with versions of Windows prior to Windows 95.
Posted by oldnewthing | 26 Comments
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Wednesday, November 17, 2004 7:01 AM

Poking at diploma mills: Kennedy-Western University

Ignore the man behind the sheepskin.
Posted by oldnewthing | 41 Comments
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Wednesday, November 17, 2004 7:00 AM

How do I break an integer into its component bytes?

This is what the BitConverter class is for.
Posted by oldnewthing | 20 Comments
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Tuesday, November 16, 2004 7:01 AM

Exploiting the inattentive

Just because it comes with a measuring cup doesn't mean you have to use it.
Posted by oldnewthing | 32 Comments
Tuesday, November 16, 2004 7:00 AM

What is this Xerox directory doing in Program Files?

Windows File Protection is keeping an eye on it.
Posted by oldnewthing | 47 Comments
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Monday, November 15, 2004 7:00 AM

Asking questions where the answer is unreliable anyway

Race conditions render many questions pointless.
Posted by oldnewthing | 39 Comments
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Friday, November 12, 2004 7:04 AM

Will dragging a file result in a move or a copy?

It depends.
Posted by oldnewthing | 80 Comments
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Thursday, November 11, 2004 10:35 AM

Advantages of knowing your x86 machine code

Some machine code you may find handy in your next debugging session.
Posted by oldnewthing | 75 Comments
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Wednesday, November 10, 2004 7:04 AM

Why does Windows not recognize my USB device as the same device if I plug it into a different port?

Because the device doesn't have a serial number.
Posted by oldnewthing | 65 Comments
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Tuesday, November 09, 2004 6:57 AM

A history of GlobalLock, part 4: A peek at the implementation

Optimizing a function that needs to exist even though it doesn't do anything.
Posted by oldnewthing | 11 Comments
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Monday, November 08, 2004 7:04 AM

A history of GlobalLock, part 3: Transitioning to Win32

Changing everything while still appearing to change nothing.
Posted by oldnewthing | 14 Comments
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Monday, November 08, 2004 6:57 AM

Ein hundert Dinge, die in den Vereinigten Staaten besser bleiben

What the United States looks like from Germany.
Posted by oldnewthing | 22 Comments
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Friday, November 05, 2004 6:57 AM

A history of GlobalLock, part 2: Selectors

Here come the selectors...
Posted by oldnewthing | 15 Comments
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Thursday, November 04, 2004 6:57 AM

A history of GlobalLock, part 1: The early years

Trying to squeeze everything into 320K...
Posted by oldnewthing | 33 Comments
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Wednesday, November 03, 2004 6:57 AM

Why do I sometimes see redundant casts before casting to LPARAM?

It used to be a huge difference.
Posted by oldnewthing | 25 Comments
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Tuesday, November 02, 2004 6:57 AM

What was the point of the GMEM_SHARE flag?

It controlled the lifetime of the memory block.
Posted by oldnewthing | 4 Comments
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Tuesday, November 02, 2004 6:57 AM

And to think they let me get away with it for five years

Mad dogs, Englishmen, and New Jersey voters.
Posted by oldnewthing | 23 Comments
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Monday, November 01, 2004 9:39 AM

What was the difference between LocalAlloc and GlobalAlloc?

It used to be a huge difference.
Posted by oldnewthing | 26 Comments
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