Showing tag results for Code

At the 2008 PDC, somebody stopped by the Ask the Experts table with a question about the heap manager. I don't understand why the heap manager is allocating a new segment. I allocated a bunch of small blocks, then freed nearly all of them. And then when my program makes a large allocation, it allocates a new segment instead of reusing the mem...

A customer asked for help writing a regular expression that, in the customer's words, matched the string when it appeared as a standalone word. One of the things that people often forget to do when asking a question is to describe the things that they tried and what the results were. This is important information to include, because it saves th...

A number of stock GDI objects are made available by the function, but one stock GDI object that is mysteriously missing is the stock bitmap. You can't summon the stock bitmap, but it manages to show up in various places, some of them perhaps unexpected. The stock bitmap is a monochrome 1×1 bitmap which GDI uses in various places where it ...

Here's a question that came from a customer. This particular example involves managed code, but don't let that distract you from the point of the exercise. I am trying to create a object using the constructor that takes an as input. In my .cs file, I create the native file handle using , as shown below. Then I create the object as so: ...

Frederic Delhoume wants to know if there is a simple example of code that switches an application from windowed to fullscreen. He then included a code fragment that did some crazy things with parent windows and hiding and showing. You're making it way, way harder than it needs to be. Let's start with our scratch program and make these changes:...

If you specify one of the static control styles which draw a frame or rectangle the control will be drawn with the corresponding color (which, as we saw last time, isn't actually black, gray, or white). If you try to customize the color by handling the message, you'll find that it has no effect. Well, yeah, because you said you wanted a black ...

A customer was having trouble with their shell namespace extension: When we click the [+] button next to our shell namespace extension in the folder tree view, the tree view shows both files and folders, even though it's supposed to show only folders. Our does return the correct values for (including it for the folders and omitting it for the n...

nick_journals demonstrates some confusion about names in source code and their relationship to runtime behavior. A topic I am particularly interested in is the naming of controls, how it works... Every control gets a name from a developer...via the IDE (e.g btnOK) When using this function: GetWindowLong(handle,GWL_ID) it doesn't return the n...

We saw last time that the function waits only once for a process to go input idle. Even if the process later stops processing messages, will return immediately and say, "Yeah, he's idle." The way a process is determined to be input idle is that it is waiting for user input when there is none. This translates into the process sitting in a functi...

The function waits for a process to finish its initialization, which is determined when it reaches a state where it is just sitting around waiting for messages. The documentation for doesn't even get around to the initialization part until the Remarks section. If all you read is the one-sentence summary, Waits until the specified process is wait...