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Hi I am wanting to be able to create a GUI app that would compile in any OS (Linux,Mac and Windows), so i am wanting to code in generic style code and not have licencing issues. What are your views on wxWidgets, SQLite? What could i use to create nice looking reports? (fop, pdf, xsl?) i have started to use wxdevcpp on my XP machine which i find OK, But i can get my hands on a Borland 5 C++ builder. What would you recommend for windows or Linux multiple language support? Eclipse? codeblocks? and how would i do this (text file.db?)? >>From some of the books i have it looks like the .h file contents syntax are different on Windows and Linux. If i coded in linux, would the windows version be easier to compile from the linux source? If you had areas of code that related to certain OS i.e / \ in paths and system calls, would you use namespace's ? Does anyone know of any evening classes that would cover generic C++ programming and not the latest .NET versions. I am in Axminster area. Thanks again for all your tips and advise. Regards Sam ----- Original Message ----- From: "Anthony Williams" <anthony@xxxxxxxxxxxxxxxxxxxxxxxxxxx> To: <list@xxxxxxxxxxxxx> Sent: Wednesday, March 18, 2009 8:05 AM Subject: Re: [LUG] C++ Questions? > At Tue 17 Mar 2009 20:42:13 UTC, Sam Grabham <sam@xxxxxxxxxxxxxxxxx> > wrote: > >> I have started reading a 600 page book on C++ , but i haven't found >> answers to the following: >> >> In C++ how should you use and include resource file (.rc) for multi >> lang support for a GUI support? > > .rc files are Windows-specific. If you include copies of the same > resources in different languages then Windows will choose the one > appropriate for the current system language when the resource is > loaded into the app. > > On linux, the mechanism for resources and multiple language support > depends on your GUI toolkit. > >> In the books i have been reading the examples show all classes and >> functions all on one .cpp file. >> >> In VB you would use lots of .bas files for all your extra common >> code and recycle the code in other projects. >> >> How should you structure code for easier coding? would you use >> another . cpp file and prototye the functions in the main.cpp file. > > Divide code into separate files based on the responsibilities > represented. A reasonable guideline to start with is one class => one > .h/.cpp pair. > > Put all your declarations in .h files rather than prototyping them in > your .cpp files. Then when you need to use the class or functions in > another .cpp file you can just #include the .h file. > >> How would you create GUI user controls like grids that get reused >> again and again (ocx ?) . > > You can write an OCX in C++ too. It's not something I'd recommend for > beginners though, as it's quite complex. > >> When would you create a .h file? > > When you have declarations of classes or functions that need to be > used from more than one .cpp file. > >> are the compiled object files the same as dll's? > > No. Each .cpp file compiles into a single object file (.obj). DLLs are > linked from compiled object files the same way as a complete EXE. DLLs > may "export" functions which can then be used by other DLLs or EXEs > which "import" the functions from that DLL. > >> and can you ref them into you compiled exe, In Lunix or windows? > > That's the whole point of DLLs --- you use them from your EXEs. You > use DLLs for three purposes: > > * reuse the same code in multiple apps, > * as plugins to enable extra functionality after the app is built > (e.g. photoshop plugins) > * to separate discrete chunks of an application that can be changed > and rebuilt separately. > > Linux has "Shared Object" .so files instead of DLLs. The process is > similar to DLLs --- compile some object files (.o on linux) and link > to a .so. The .so can then be loaded into an executable program in > order for the program to use the functions from the .so file. > > Anthony > -- > Anthony Williams > Author of C++ Concurrency in Action | http://www.manning.com/williams > just::thread C++0x thread library | http://www.stdthread.co.uk > Custom Software Development | > http://www.justsoftwaresolutions.co.uk > Just Software Solutions Ltd, Registered in England, Company Number > 5478976. > Registered Office: 15 Carrallack Mews, St Just, Cornwall, TR19 7UL, UK > > > > -- > The Mailing List for the Devon & Cornwall LUG > http://mailman.dclug.org.uk/listinfo/list > FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.18/2009 - Release Date: 03/18/09 07:17:00 -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html