application-types

Extending Sprite Using Flex?

I have done all of my Flash applications up until now with the Flash IDE (although I rarely use the timelines, since I prefer to do everything in code) or in FlexBuilder as Flex applications. Are apps that just extend Sprite (used in the FlexBuilder IDE, for instance) a viable way of doing an application, or are they just for HelloWorlds...

Limiting file upload type

Simple question. Is there a way to only allow txt files upon uploading? I've looked around and all I find is text/php, which allows PHP. $uploaded_type=="text/php ...

What common application types are created with Visual C++?

C# and VB .net (higher level languages) tend to be good for n-tier business applications and such. I find C++ a very interesting language and would like to spend more time developing in it. What kinds of applications are better suited to C++ applications? Are many windows forms apps (for example) created using C++? ...