Showing tag results for Code

A customer reported a problem with their shell context menu extension. I have implemented the shell extension, but when the user selects my custom menu item, my is never called. Can anyone please let me know what the problem could be and how to fix it? Since there really isn't much information provided in this request, I was forced to invoke m...

Another entry in the very sporadic series of "very strange code I've seen." The code has been changed to protect the guilty, but the essence has been preserved.

It was a simple question. For some reason, my font selection dialog () shows a bunch of font names beginning with the at-sign (@). These fonts don't work correctly if I use them. Any idea what they are? (I tried searching the Internet, but search engines don't seem to let you search for so it's hard to make much headway.) (And that's why I...

A customer was reporting that the function was not reporting the base window class of their superclass. (Error checking has been elided for expository purposes.) The customer found that the assertion fails, returning a window class name of "AwesomeWindow" instead of "static". "I thought the point of RealGetWindowClass was to dig through the su...

In the flags you pass to the linker, you can specify that a section be made discardable. What does that mean? If you are a kernel-mode driver, the discardable flag means that the contents will be removed from memory after initialization is complete. This is where you put your initialization code and data. But if you're writing user-mode code, t...

A customer reported that they were observing that some users were finding their taskbar set to auto-hide even though the standard configuration in the company is for the auto-hide feature to be disabled. Going into Taskbar Properties shows Auto-hide the taskbar checked. None of the users had changed their setting to auto-hide manually, so the quest...

Commenter POKE53280,0 claims, "If one validates parameters before using string functions (which quality programmers should do), the 'safe' functions have no reason to exist." Consider the following function: What could possibly go wrong? You check the length of the string, and if it doesn't fit in the buffer, then you reject it. Therefore, y...

One quirk of nested dialogs lies in what happens when the user presses Enter to invoke the default pushbutton: The resulting message goes to the top-level dialog, even if the default pushbutton belongs to a sub-dialog. Why doesn't it send the to the parent of the default pushbutton? I mean, the dialog manager knows the handle of the button, so...

The extended style (known in dialog templates as ) instructs the dialog manager that the dialog's children should be promoted into the dialog's parent. This is easier to explain in pictures than in text. Given the following window hierarchy: The result of the extended style being set is that the children of B are treated as if they were di...

When you build a dialog, either from a template or by explicitly calling , one of the pieces of information about each control is a child window identifier. And it's probably in your best interest to make sure two controls on the dialog don't have the same ID number. Of course, one consequence of giving two control the same ID number is that the ...