Could someone write-up a step by step guide to developing a C++ based plugin for FireFox on Windows? The links and examples on http://www.mozilla.org/projects/plugins/ are all old and inaccurate - the "NEW" link was added to the page in 2004. The example could be anything, but I was thinking a plugin that lets JavaScript set the name...
I once had the task of determining the following performance parameters from inside a running application: Total virtual memory available Virtual memory currently used Virtual memory currently used by my process Total RAM available RAM currently used RAM currently used by my process % CPU currently used % CPU currently used by my proce...
I would like to be able to display some dynamic text at the mouse cursor location in a win32 app, for instance to give an X,Y coordinate that would move with the cursor as though attached. I can do this during a mousemove event using a TextOut() call for the window at the mouse coordinates and invalidate a rectange around a stored la...
I discovered template metaprogramming more than 5 years ago and got a huge kick out of reading Modern C++ Design but I never found an opertunity to use it in real life. Have you ever used this technique in real code? Contributors to Boost need not apply ;o) ...
I want to move verious parts of my app into simple scripts, to allow people that do not have a strong knowleagd of c++ to be able to edit and implement various features. Because its a real time app, I need to have some kind of multi-tasking for these scripts, idealy I want it so that the c++ app calls a script function which then contin...
Can you specialize a template method within a template class without specializing the class template parameter? Please note that the specialization is on the value of the template parameter, not its type. This seems to compile under Visual Studio 2008 SP1 complier, but not GCC 4.2.4. #include <iostream> using namespace std; template <...
I was discussing neural networks (NN) with a friend over lunch the other day and he claimed the the performance of a NN written in Java would be similar to one written in C++. I know that with 'just in time' compiler techniques Java can do very well, but somehow I just don't buy it. Does anyone have any experience that would shed light...
I have an interface that I have defined in C++ which now needs to be implemented in C#. What is the best way to go about this? I don't want to use COM at all in my interface definition. The way I have solved this right now is to to have two interface definitions, one in C++ and one in C#. I then expose the C# interfaces as a COM server. ...
int i = 4; string text = "Player "; cout << (text + i); I'd like it to cout "Player 4" ^ The above is obviously wrong but it shows what I'm trying to do here. Is there an easy way to do this or do I have to start adding new includes? ...
How would you write (in C/C++) a macro which tests if an integer type (given as a parameter) is signed or unsigned? #define is_this_type_signed (my_type) ... ...
Yacc does not permit objects to be passed around. Because the %union can only contain POD types, complex objects must be new'd and passed around by pointer. If a syntax error occurs, the yacc parser just stops running, and references to all of those created objects are lost. The only solution I've come up with is that all new'd object i...
As far as I know, in gcc you can write something like: #define DBGPRINT(fmt...) printf(fmt); Is there a way to do that in VC++? ...
I've just started writing unit tests for a legacy code module with large physical dependencies using the #include directive. I've been dealing with them a few ways that felt overly tedious (providing empty headers to break long #include dependency lists, and using #define to prevent classes from being compiled) and was looking for some b...
I'm running into a perplexing problem with an ActiveX control I'm writing - sometimes, Internet Explorer appears to fail to properly unload the control on process shutdown. This results in the control instance's destructor not being called. The control is written in C++, uses ATL and it's compiled using Visual Studio 2005. The control i...
What is the best way to generate a Unique ID from two (or more) short ints in C++? I am trying to uniquely identify vertices in a graph. The vertices contain two to four short ints as data, and ideally the ID would be some kind of a hash of them. Prefer portability and uniqueness over speed or ease. There are a lot of great answers...
As everyone* knows, the Visual C++ runtime marks uninitialized or just freed memory blocks with special non-zero markers. Is there any way to disable this behavior entirely without manually setting all uninitialized memory to zeros? It's causing havoc with my valid not null checks, since 0xFEEEFEEE != 0. Hrm, perhaps I should explain a ...
We are looking for a C++ Soap web services framework that support RPC, preferably open source. Any recommendations? ...
What libraries do I have to pick from when working with Computer Vision in C/C++? I realize that Google has a lot of good results, but maybe there's great libraries out there that it missed. ...
My development shop has put together a fairly useful Python-based test suite, and we'd like to test some Linux-based C++ code with it. We've gotten the test project they ship with Boost to compile (type 'bjam' in the directory and it works), but we're having issues with our actual project. Building the boost libraries and bjam from sour...
Does anybody know a "technique" to discover memory leaks caused by smart pointers? I am currently working on a large project written in C++ that heavily uses smart pointers with reference counting. Obviously we have some memory leaks caused by smart pointers, that are still referenced somewhere in the code, so that their memory does not ...