Showing archive results for October 2012

All sorts of germs.

Sixth grade students (ages 11 to 12, roughly) were instructed to imagine that they have no television, computer, or telephone for a week and write an essay (in the form of a letter to their parents) on what they would do with their time and why. The assignment was given under standardized test conditions: 90 minutes with nothing but pencil and pape...

The keyboard shortcut for resizing all columns in a report-mode (also known as Details mode) list view control to fit the current content width is Ctrl+Num+. That's the + key on the numeric keypad. (If you're using Explorer, you can also right-click the column header and choose Size All Columns to Fit.) Note that this command is a verb, not a st...

James wonders why many functions kept for parameter lengths instead of upgrading to or . When updating the interfaces for 64-bit Windows, there were a few guiding principles. Here are two of them. Don't change an interface unless you really need to. Do you really need to? Changing an interface causes all sorts of problems when porting. Fo...

In Windows, we spend a good amount of time with the pseudo-mirrored build. And one of the things that you notice is that pseudo-mirrored text comes out looking really weird. For example, the string really? (yup). comes out pseudo-mirrored as .(really? (yup. Just for fun, here's here's how your browser renders it: really? (yup). Even stranger,...

A customer reported a bug in Windows Vista Home Editions: We are handling a Ctrl+V keyboard event and want to interpret it in the context of a US-English keyboard. On Windows XP and versions of Windows Vista other than Home editions, the three calls all succeed, whereas on Windows Vista Home Editions, the calls fail. On the other hand, ...

Today, I'm not actually going to say anything new. I'm just going to collate information I've already written under a better title to improve search engine optimization. A customer reported that they did the following but found that it didn't work: "I send the message to my dialog, but the value doesn't stick. At random times, the value rese...

A colleague posed a little puzzle for a fun little app he was writing in HTML: He wanted to generate a random color. If you search around the intertubes, you can find several possible attempts at a solution, like this collection, and an interesting example that has trouble with the pigeonhole principle. The original function to generate a ra...

Anon asks, "How do you come up with new shortcut keys and how do you deal with different keyboard layouts? What is the process; is there a company-wide procedure to keep things consistent?" This is several questions (none of them really a suggestion, but I've given up on making the Suggestion Box about suggestions; now it's just the "Ask Raymond a...

Miral asks for the recommended way of passing messages across processes if they require custom marshaling. There is no one recommended way of doing the custom marshaling, although some are hackier than others. Probably the most architecturally beautiful way of doing it is to use a mechanism that does perform automatic marshaling, like COM and MI...