The Old New Thing

Why are there both TBSTYLE_EX_VERTICAL and CCS_VERT?

March 28, 2007 Mar 28, 2007 03/28/07

Raymond Chen

There are two ways to make a vertical toolbar. You can use the common style, or you can use the extended style which is specific to the toolbar. Why are there two ways of doing the same thing? Because we messed up. Whoever created the extended style didn't realize that there was already a perfectly good way of specifying a vertical ...

Microspeak: Calibration

March 27, 2007 Mar 27, 2007 03/27/07

Raymond Chen

The publicity machine continues: A chat with Scott Hanselman and Hanselminutes

March 26, 2007 Mar 26, 2007 03/26/07

Raymond Chen

Scott Hanselman let me know he was going to be in town, and after some negotiation with the company PR department (who probably get the massive heebie-jeebies from this whole blog thing), I was able to accept his invitation to appear on his weekly podcast, HanselMinutes. We sat down for a little chat, and a few weeks later, I became Show #...

Passing by address versus passing by reference, a puzzle

March 26, 2007 Mar 26, 2007 03/26/07

Raymond Chen

Commenter Mike Petry asked via the Suggestion Box: Why can you dereference a COM interface pointer and pass it to a function with a Com interface reference. The call. The function called. I found some code written like this during a code review. It is wrong but it seems to work. You already know the answer to this question. You...

The wisdom of seventh graders and you: Design a course

March 23, 2007 Mar 23, 2007 03/23/07

Raymond Chen

I'm out today to volunteer with grading student essays. The topic the students were given is one that I suggested: "You have been chosen to design a new elective for your school. Describe what it would be." In a few weeks, you'll learn what the students wrote, but my question for you is what you would propose in your essay. You can answer the...

Excursions in composition: Adding rewind support to a sequential stream

March 23, 2007 Mar 23, 2007 03/23/07

Raymond Chen

Here's a problem "inspired by actual events": I have a sequential stream that is the response to a request I sent to a web site. The format of the stream is rather messy; it comes with a variable-length header that describes what type of data is being returned. I want to read that header and then hand the stream to an appropriate handler. ...

Excursions in composition: Sequential stream concatenation

March 22, 2007 Mar 22, 2007 03/22/07

Raymond Chen

As we've seen a few times already (when building context menus and exploring fiber-based enumeration), composition is an important concept in object-oriented programming. Today, we're going to compose two sequential streams by concatenation. There really isn't much to it. The idea is to take two streams and start by reading from the first...

You don't know what you do until you know what you don't do

March 21, 2007 Mar 21, 2007 03/21/07

Raymond Chen

Many years ago, I saw a Dilbert cartoon that went roughly like this. Frame 1: Supertitle - "Dogbert's guide to project management." Frame 2: Supertitle - "Not a project." Dilbert answers the phone. "Sure, we do that." Frame 3: Supertitle - "A project." Dilbert answers the phone. "No, we don't do that."† I've seen a lot of software ...

The early stages of Joshua Roman groupie-dom

March 20, 2007 Mar 20, 2007 03/20/07

Raymond Chen

The first time I saw the Seattle Symphony's new principal cellist Joshua Roman, it was at a subscription performance of Mahler's Seventh Symphony in June 2006, shortly after the then-22-year-old took the principal's seat from the retiring Raymond Davis. We noticed that there was a new face in the orchestra, and wondered afterwards, "Who was ...