wxWidgets Discussion Forum

Sorry. That site was lost a while ago due to equipment failure. You can download the class source here http://oneangryjerk.com/files/maskedit.zip The code is rough, but it works. I have a cleaner version, but it depends on some of our internal code and I can't release it here. The classes interface ...

I have no general problems with exceptions and MINGW 3.4.2. I can throw any type and catch it without a crash. The only problem I experience is throwing an exception across a DLL boundry, catching it, and then later unloading the DLL. I solved this problem by not unloading my addin DLLs explicitly u...

The place where Davros is not correct is in the case of multiproc/multicore systems, where one processor or core could be writing, while the other is reading and so on. I'm also not sure the modification of a stack/heap var regardless of if it is the same size as a native "word" would be atomic on a...

Thank you both, for now im just painting it when the user selects the item that chooses the radios. It's not perfect, but it works.

Well, that fixes it initially not displaying, but if you make sure the window is not big enough to hold the entire box, scroll down, and then maximize the window, the radiobuttons again are not displayed. You can even restore the window and notice that they still don't paint! Something is definately...

For some reason when I place a wxRadioBox inside a wxScrolledWindow, the radio buttons don't draw until I resize the window. They don't even redraw if I scroll up and down. Screen Shot: http://dev.rsaisp.com/images/hosted/radbox_scrolwin_prob.gif Example Code: #include <wx/wx.h> class Test : public ...

Maybe he means something like wxDynamicLibrary?

I would agree with RogerIrwin that alot of middleware is bloatware that doesn't increse productivity or flexability at all. However, we develop middleware here that deals with things like client disconnected operation (restaurant cash registers for example), database failures, instant messaging, rem...

The only thing I would have against the critical section solution is that it could be a lot more expensive than an atomic increment.

This may not seem like a big deal, but if he is using the operation for something like reference counting of many objects, the extra time can add up very quickly.

Hello, SnakeChomp, all that he probably wanted to know was is there a wxWidgets function for atomic increment and decrement, which is not windows specific by any means, he just wasn't asking the question in a non windows specific manner. Atomic operations are defined at the processor level, so the f...

Hi Jorg, In the book Patterns of Enterprise Application Architecture the authors define patterns that help you to separate the data access code from the class logic. One of the patterns that the authors develop is the Table data gateway ( http://www.martinfowler.com/eaaCatalog/tableDataGateway.html ...

Good Morning,

When you unload the DLL is your program crashing or exiting normally? If it is crashing I would send it through a debugger to see if you can trace into the function or functions that are causing the problem.

Actually, this scenario is common for plugin architectures. Usually the main app hosts services for the plugin modules. This is normally done in C++ through the use of interfaces. For example.. IPluginServices.h: //Defines an interface that the main program will have to create //an implementation fo...

I have an application that only uses the wxbase, and wxodbc libraries, but loads addon modules. These addon modules can be used with the application in question, or another application that supports a GUI, so the addins may load other WX libraries. So I call wxInitialize on startup and wxUninitializ...

Well, it's not really a bug, but it should be done your way Actually, it is a bug.. According the the C++ standard the result of deleting an array object using delete and not delete[] is undefined. Undefined in standardeese means that it could do anything, including steal your pets food dish. :shoc...