Showing tag results for Code

Commenter Tom Grelinger asks via the Suggestion Box: If I have a modal CDialog that is visible and usable to the user. Let's say I receive an event somewhere else in the program and I call DestroyWindow on the modal CDialog from within the event. I notice that the OnDestroy is called on the CDialog, but DoModal never exits until a WM_QUIT is po...

One of the major changes to services in Windows Vista is session 0 isolation. After reading the summary, you can follow that first supplementary link, Impact of Session 0 Isolation on Services and Drivers in Windows Vista, to dig deeper and receive guidance on how you need to modify your service. Then again, some of the questions I see regar...

If you've designed your program so that it assumes that the the only thing a user can use drag/drop for is dropping your object into a file system directory, then you've already lost. piers wants to be able to determine the destination of a drag/drop operation. From the description, it appears that what piers really wants is the destination path,...

Last year, a Windows security update got a lot of flack for causing some machines to hang, and it was my fault. (This makes messing up a demo at the Financial Analysts Meeting look like small potatoes.) The security fix addressed a category of attacks wherein people could construct shortcut files or other items which specified a CLSID that was neve...

Life was simpler back in the old days. Back in the old days, processes were believed to be in control of their threads. You can see this in the "old fashioned" way of exiting a process, namely by exiting all the threads. This method works only if the process knows about all the threads running in it and can get each one to clean up when it's time ...

If you hunt around the Internet you'll find lots of people† who hard-code the string as the second parameter to the function, indicating that they want to open the document specified as the third parameter. While that's a nice thing to want to do, it might not be the right thing. When the user double-clicks a document, the shell executes ...

Back in the old days, if you wanted to call a function from inside the debugger, you had to do it by hand: Save the registers, push the parameters onto the stack (or into registers if the function uses or ) push the address of the function, move the instruction pointer to the start of the function you want to call, then hit "g" to resume executi...

The next entry in the continuing sporadic series on resource formats is the bitmap. You thought accelerator tables were simple; bitmaps are even simpler. A bitmap resource takes the same form as a file, except that there is no . That's all.

Here's a problem that floated past a few years ago. We switched our wizard from using dialog resource IDs to using because [reasons deleted since they aren't important]. But once we did that, the Next button doesn't work! Anybody have any ideas what's going on? I made things a little easier by deleting the information that isn't relevant to the...

It depends on what you mean by default. As we saw earlier, the convention for Windows header files is that if you don't specify a particular version, then you get the most recent version. The shell common controls header file follows this convention, so if you include the Windows XP version of , you get functions, messages, and structures de...