The Old New Thing

Practical development throughout the evolution of Windows.

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Exploring the signals the dialog manager uses for dismissing a dialog
Feb 19, 2026
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Exploring the signals the dialog manager uses for dismissing a dialog

Raymond Chen
Raymond Chen

Summarizing the flow.

Could<CODE>Write­Process­Memory</CODE> be made faster by avoiding the intermediate buffer?
Feb 18, 2026
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CouldWrite­Process­Memory be made faster by avoiding the intermediate buffer?

Raymond Chen
Raymond Chen

I guess it could, but why bother?

Microspeak: Escrow
Feb 17, 2026
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Microspeak: Escrow

Raymond Chen
Raymond Chen

Final build, final, final, final 2, ship this one.

It rather involved being on the other side of the airtight hatchway: Tricking(?) a program into reading files
Feb 16, 2026
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It rather involved being on the other side of the airtight hatchway: Tricking(?) a program into reading files

Raymond Chen
Raymond Chen

Is it really a trick when reading the file is the purpose of the program?

How can I distinguish between the numeric keypad 0 and the top-row 0 in the<CODE>WM_<WBR>CHAR</CODE> message?
Feb 13, 2026
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How can I distinguish between the numeric keypad 0 and the top-row 0 in theWM_CHAR message?

Raymond Chen
Raymond Chen

See if it matches the scan code.

How can I distinguish between the numeric keypad 0 and the top-row 0 in the<CODE>WM_<WBR>KEY­DOWN</CODE> message?
Feb 12, 2026
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How can I distinguish between the numeric keypad 0 and the top-row 0 in theWM_KEY­DOWN message?

Raymond Chen
Raymond Chen

Check whether it is an extended key.

How do I suppress the hover effects when I put a Win32 common controls ListView in single-click mode?
Feb 11, 2026
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How do I suppress the hover effects when I put a Win32 common controls ListView in single-click mode?

Raymond Chen
Raymond Chen

You can prevent the item from becoming hot-tracked.

How did Windows 95 get permission to put the Weezer video<I>Buddy Holly</I> on the CD?
Feb 10, 2026
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How did Windows 95 get permission to put the Weezer videoBuddy Holly on the CD?

Raymond Chen
Raymond Chen

Asking nicely, and asking a lot of people.

What should I do if a wait call reports<CODE>WAIT_<WBR>ABANDONED</CODE>?
Feb 9, 2026
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What should I do if a wait call reportsWAIT_ABANDONED?

Raymond Chen
Raymond Chen

It's your one chance to make amends.

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