does anyone out there know what coding language silverlight itself is written in; C++, C#?
It depends on what you mean by "Silverlight itself". Much of it - including the BCL - is managed code. Lower-level components - including the CLR - are unmanaged.
Silverlight is written in C++ for cross platform compatibility.
It's probably written in C/C++, given that it's a browser plugin.
(Doing a scan of the binaries in /Library/Internet Plug-Ins/Silverlight.plugin on my mac reveals a lot of libs with C linkage, which implement the minimal CLR required for code to run on top of Silverlight, but the plugin itself seems to be written in C/C++)
There are still managed libraries in the plugin bundle, as you'd imagine since it needs to be able to execute CLR assemblies, but it's unclear how much of the actual plugin logic is written on top of the mini-CLR provided.
Related
I'm interested in using F# for numerical work, but my platforms are not windows based. Mono still has a significant performance penalty for programs that generate a significant amount of short-lived objects (as would be typical for functional languages).
Silverlight is available on OSX. I had seen some reference indicating that assemblies compiled in the usual way could not be referenced, but not clear on the details. I'm not interested in UIs, but wondering whether could use the VM bundled with silverlight effectively for execution?
I would want to be able to reference a large library of numerical models I already have in java (cross-compiled via IKVM to .NET assemblies) and a new codebase written in F#. My hope would be that the silverlight VM on OSX has good performance and can reference external assemblies and native libraries.
Is this doable?
Technically speaking, Silverlight assemblies are similar as normal CLR assemblies, with the exception that they reference different version of runtime (and different version of system libraries such as mscorlib). Silverlight can run only Silverlight assemblies, so if you're compiling F# code you need to instruct the F# compiler to reference Silverlight (here are Visual Studio templates from Luke Hoban and here is a recent sample Silverlight app in F# by Brian McNamara).
Now, regarding the non-F# assemblies, I'm afraid this may be a problem. In principle you don't need to recompile them - there are tools to change the version (to turn CLR assembly into Silverlight assembly). See for example this article. In practice, Silverlight has many limitations (lots of methods missing, you are not allowed to do some Reflection tricks for security reasons etc.). So, I'm afraid that if you simply convert the assembly to Silverlight, it won't really work, but you may still try that... (but be careful - if a referenced method is missing, you won't find this out until Silverlight tries to call it at runtime).
Finally, there is also a problem with communicating with the application running in Silverlight as Silverlight apps have pretty limited capabilities. However, Silverlight 4 RC should allow you to read/write local files when running in the Out-of-browser mode (which may be good enough).
In summary I think that there are a lot of issues that may make it impossible to use Silverlight for this. I would maybe consider doing some more testing on Mono and sending feedback to them (if you find some case where the performance is clearly poor) - From my experience, they can be quite effective in responding to the feedback from users and I have the feeling that F# may be quite interesting thing for Mono team.
I've been tasked with porting an existing Windows GUI app to Linux. Ideally, I'd like to do this so the same code base can be used to build either the Windows version or the Linux version. I'll be doing my work on Ubuntu 9.04. After searching around, it's unclear to me what tools are best suited to help me with this.
A list of loose requirements would be:
The code is in C, not C++, and should compile to build both Windows and Linux versions. Since it's existing code, and fairly large, converting to a managed language like .NET is out of the question for now.
I would prefer if I can use the same dialogs in both systems. In Windows, putting up a dialog is pretty simple. You build the dialog in the Resource Editor in Visual Studio, then call DialogBox() API, and handle the event messages. I would really like to find something that can do the equivalent on the Linux side.
It would also be nice to have a good IDE similar to Visual Studio.
Any helps or hints would be appreciated.
Thanks,
Winelib should let you compile Win32 code under Linux with only a few modifications.
Since your code base is in C, I'd suggest using GTK+. It's a cross platform GUI toolkit. For instance, Pidgin instant messenger GUI is created with GTK+. Glade user interface designer can be used to graphically design UIs.
If you're on a tight budget, and don't mind taking time to work around a fair number of limitations, Winlib is an option. If you're shorter on time, and have a larger budget, you might want to look into Mainsoft instead. It's not exactly perfect, but I believe it supports a considerably larger part of the Win32 API (at a correspondingly higher price).
Until now I've been only writing console applications but I need to write a simple window application for a school assignment.
Could somebody point me to a good tutorial how to create windows and other ordinary windows elements such as buttons, 2d graphs etc in ANSI C? is there some good library I should use?
I tried googling but there are no tutorial websites devoted to C.
If you can, I would also appreciate some example code.
Thank you.
By the way, I use Dec C++.
GTK is a good library to use, but may provide non-native looks under Windows. It looks great under GNU/Linux, especially using GNOME.
It is implemented in just C (Using the GObject Type System, part of the GLib library), so it will work great for your needs. There is also a RAD tool called Glade.
There's nothing in the ANSI C standard about windows. If you want to make a windowed application, you'll have to use platform-specific libraries (e.g. Win32, Cocoa, or X11), or some sort of cross-platform library that encapsulates that (e.g. SDL, wxWidgets, or many more).
Common places to start are Charles Petzold's Programming Windows and theForger's Win32 API Programming Tutorial.
However in most cases C is no longer the preferred language for Windows development. Object oriented technology is far better suited to GUI development, and with the introduction of MFC, C++ became the preferred language, and later with .Net, C# and C++/CLI.
The Win32 API can be hard work, much of MFC is little better than a Win32 API wrapper, the .Net framework however was designed from the ground up, and is less encumbered by the legacy of the Win32 API monster, and working with it tends to result in far greater productivity.
Either way, Dev-C++ is not a great tool for GUI development.
http://support.microsoft.com/kb/829488 which also talks how to create
Windows application: Creates a simple
Microsoft Windows-based application.
The application files include a
ProjectName.cpp file that contains a
_tWinMain function. You can use this type of application to perform
graphical user interface (GUI) based
programming.
As for tutorials... use MSDN. Win32 API is C. You don't need "Win32 ANSI C tutorial" - you need Win32 tutorial (for example http://www.winprog.org/tutorial/start.html, http://www.functionx.com/win32/Lesson01.htm) - unless, of course, you don't know ANSI C but then you just look for ANSI C tutorial. These subjects are independent.
There are lots of good libraries—too many for there to be an obvious choice without starting a religious war. I recommend that for your first library you learn something that will work on Windows, Linux, or OSX. Here are two good choices, not necessarily the best, but widely used and personal favorites:
Tcl/Tk. You write most of your application in the Tcl scripting language, but you can easily integrate your own ANSI C code into Tcl, which was designed from the beginning with such integration in mind. The Tk toolkit is very easy to learn, and you can write many simple GUIs in pure Tcl when you are getting started. Interactive, easy, and very well supported.
If you want to write everything in ANSI C, I don't know of any really simple choices, but I've been fairly happy with wxwidgets. All these tools have a pretty steep learning curve, however.
There are not many plain C GUI libraries as the strengths of the language lie elsewhere. Perhaps you should think about using a language with C bindings so you can still do the number crunching in C, but use something less painful for GUI development?
If you really want to stick to C, you can either use the OS' native API or the only current cross-platform C GUI lib I'm aware of: GTK+. If you don't really need a GUI but just graphical output, I'd go with SDL.
I suggest you download Microsoft Visual Studio 2008 Express Edition and use C#.Net.
As has been said, I suggest you use Winforms and switch to a .Net environment. It's 2009, and I think there are more suitable solutions to GUI's :P
Edit: Nvm, didn't see it was a school assignment.
However, here is a C++ guide on the Win32 API: http://www.relisoft.com/win32/index.htm
I'm trying to disassemble a C/C++ DLL, and have made some progress, but I would like to create my own C DLL with the same function the original exports, and compare disassemblies.
Visual Studio adds to much crap, and when I remove the crap and build my project, the expected DLL is missing.
I need a lightweight, preferably IDE, tool to edit and build very simple C libraries.
Take a look at Code::Blocks
I need a lightweight, preferably IDE, tool to edit and build very simple C libraries.
I have found that one of the best ways to do integrated C-only Win32 development is using the freely available Lcc Win32 Compiler which comes with a built-in IDE, including resource editor.
In fact, it is really very lightweight and can be run from a USB stick with some manual tweaking.
It's indeed a really small download of just 6 mb and you can even download an optional Win32 API help file which is really useful while doing development.
The compiler also comes with a C tutorial, as well as good user documentation detailing how to use the integrated Win32 resource editor "wedit", there's also an advanced manual about more complex development tasks.
Dev-C++ is a nice and fast IDE which works well with MingW.
But it's all been asked and answered before ...
MinGW adds its own crap. Install your VC express properly and save yourself a lifetime of trouble.
Btw, you don't need to use Visual Studio for its compiler or vice versa. The oddity of missing a build dll is probably because you are not looking at the right path.
If you are building C DLLs you really would benefit from its command line toolset and utilities, sdks, easy config etc. MS lock-in proprietary extensions are widely used (in context of you trying to emulate another dll), and last thing you need is chasing cross compiler issues..
GCC + any text editor such as VIM is a very light alternative.
For Windows Development, all you need is inside MinGW
Edit: If you are in dire need of an IDE you can also use the MinGW tools from Eclipse with the CDT plugin. Although it adds weight to the solution because of the installation of Eclipse, this is what I really use to build my small DLLs (JNI wrappers in my case).
You can setup your small and direct makefiles or let Eclipse do it automatically for you and concentrate only on the source files (*.h, *.c).
The best part of using this approach instead other IDE is that you do not need Eclipse to further build the DLL, since the underlying project files generated are standard ones directly usable by integrated dev inside MinGW (or any Unix distro) such as make, configure, automake, and so on.
I'll second the vote for Code::Blocks, it's what I use (despite having VS 2008 installed as well). It is very simple and lightweight but has basically all the features you'd expect out of an IDE. It comes with several predefined project templates for all kinds of C and C++ development, including templates for DLLs.
Download the version that includes MinGW and you get a complete lightweight IDE ready to start compiling. You can also easily configure it to use the Visual Studio compiler instead of gcc if you prefer.
try Open Watcom. A cross-platform product, well-supported by the community, lets you develop in DOS, Windows, OS/2 etc for a lot of platforms. Version 1.8 was released recently. Has a light-weight IDE indeed
Good day folks, I'm in a need of a bit of guidance.
Basically, I'm a webdev who knows some C from the past, but I've only developed somewhat simple console apps for *nix.
Shortly, I want to develop a simple Win program with a GUI and not get my hands into any of the following technologies:
.NET C#
Java
C++ (especially this one)
Because I have nor the time nor the need for it currently.
1). Can I use wxWidgets without resorting to cpp (if not, what other native looking and lightweight widget toolkit would you suggest?)
2). Can I use OpenCV with strict C? (no templates, inline functions, etc)
3). Should I look for other options for a compiler besides MinGW? Is Intel one worth investigating? (AFAIK, it has a restrictive license).
4). What IDE of the following would you suggest for windows / c programming
Dev-C++
Eclipse with appropriate plugins (can't remember the exact one)
Any text editor + *.bat for compiling??
Thanks!
If you're interested in learning C-based Windows programming directly, and not using other intermediate tools:
There's a really good reference book by Charles Petzold called Programming Windows. It's definitely the way to get started. Absolutely everything is crystal clear, and you never need C++.
The Windows API, as a whole, is built for C programmers. All the fancy stuff like an actual application window is passed back as "HANDLE"s, which are more-or-less just pointers into the OS's object table. You as a programmer never have to deal with objects, just their HANDLEs.
Also, this particular book does a good job describing the Windows event-loop. If you're unfamiliar with it, it is described in generous detail.
Good luck!
For C Windows GUI programming the easiest thing is VC++ (any version since 6.0) and The Charles Petzold Programming Windows book.
The free Express version of the Microsoft compiler should work fine - I'm not sure if you'd have to download the Platform SDK or if it comes with one.
You can write Windows GUI programs in straight C. Download the Windows SDK and look at the "GENERIC" sample (I assume it's still in there). This is pretty much the minimal code required for a Win32 app, and it's in plain-ol' C.
Edit: Hmmm, it doesn't appear to be installed on this laptop. You can find it online here.
It might be worth reconsidering C#.NET. You could easily learn C# in a couple days, and be developing slick apps very quickly. Straight C-based windows libraries, particularly Win32, are BRUTAL in comparison. You'd spend a week just to write a simple app that would take minutes in C#.
The only C-based toolkit I can think of is the Windows port of GTK+. I have no experience using it in the Windows environment though. It is very mature on the Linux side though, and may be good enough if your needs are simple.
Learning the Win32 API is hard! But like others have stated, Petzold's book is the way to go if you insist on going down that path.
My opinion is that developing a Windows GUI using only C and the Win32 API would be harder to learn than picking up just enough C++ to utilize one of the C++-based frameworks. You could still do the majority of your work in plain C.
As for free IDEs, I would go with Visual Studio 2008 Express Edition.
You don't need anything.
Just use C and Win32 api , like real programmers, not kids..
See the VS Win32 wizard
Regarding wxWidgets, you can use https://sourceforge.net/projects/wxc
I never actually heavily used it, so I'm not aware of its maturity.
Mingw and Microsoft Visual C++ are my favorite compilers. Remember you can always use strict C and compile it using a C++ compiler, since valid C is almost always valid C++.
For windows, I've used Dev-C++ in the past, but nowadays Microsoft Visual C++ seems a better solution.
If you're going for text editor+bat, check out Notepad++.
EDIT: Just to clarify, using Microsoft Visual C++ does NOT mean learning C++. You can use C in it perfectly because - I repeat - valid C is often valid C++. Don't want C++? No problem. Just stay away from the C++-only features and you're still safe in a C++ compiler.
EDIT: Roger Lipscombe has noted in the comments that a pure C compiler is available in Microsoft's Visual C, using the /TC switch.