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I would like to write some code to host VST plugins in my C++ application. It looks like the JUCE library may be helpful for this. Does anyone know where I can find a tutorial on how to host and connect together VST plugins in JUCE?
I've built the JUCE code and got the 'Plugin Host' sample working. It looks like the library will be able to do just what I want. My problem is that I'm finding the sample code hard to follow (not many comments etc). It also uses a lot of JUCE-specific coding for managing the UI and so on. I'm finding it hard to disentangle what I need to do to manage VST plugins from the other code in the sample.
If anyone knows of a tutorial I would be very grateful!
Most of the sample Juce code is indeed very Juce-specific, and if you're going to use that platform I'd encourage you to stick with it and push through the samples, even though they may not be very pretty.
It might be useful for you to know a bit more about VST hosting outside of Juce, though. Here's a tutorial on hosting VST's by hand in a C++ application.
This tutorial walks through the development of audio applications using JUCE, and in part 2 they cover hosting VST plugins.
(edit: I updated the links, also note they have a part 3 to the series)
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I am trying to write an application which searches Bluetooth devices nearby and communicates with them. My application is going to be written in C++, and intended to work under Linux.
4 years ago, I used BlueZ. But now, as I see, the API has been changed a lot and now it's using D-Bus. I was not experienced with D-Bus. I looked at some tutorials related to client/server model. Now, I'm OK with D-Bus.
But I couldn't find any example which explains how to use BlueZ with D-Bus. I need some guidance for using BlueZ and D-Bus together.
Are there any tutorial or sample for working with BlueZ via D-Bus in C or C++?
(note: already googled it)
You might want to check out the main.c file in the client folder of the most recent Bluez source code. It's the source code for the bluetoothctl tool. Run it too. The source code shows exactly how they use GDBus, including proxies, agents, calling methods like described in the API documentation (/doc folder) and all that. It's in C and uses the high level API.
I suggest you step through the code because it took me 2 weeks endlessly trying to understand Bluez in C and the fact that there's no documentation, but when I read that main.c file I was ready in a day. Read up on proper DBus API documentation and more importantly the concepts. Some documents that helped me:
The gdbus tool: https://developer.gnome.org/gio/stable/gdbus.html
These contain all the calls to gdbus and objects in the main.c file and explain them very well. https://developer.gnome.org/gio/stable/gdbus-convenience.html
D-Feet, an invaluable tool to inspecting and learning about Dbus on your system. Try checking out the /bluez bus. https://wiki.gnome.org/action/show/Apps/DFeet?action=show&redirect=DFeet
or
sudo apt-get install d-feet
Not much of a tutorial, but worth a read to understand some concepts, as the bluetoothctl tool fits into what they're trying to say here. http://dbus.freedesktop.org/doc/dbus-tutorial.html
The bluetoothctl creates an interactive shell though, so it might not be wise to waste time trying to fit in your code, but just pick what you need from it.
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This is a rather directionless post I'm afraid an I apologize. I'm trying to figure out how to use Cortana from win32 (non universal) applications. I found this link but I can't tell if there is a way to access these APIs from non-managed code. That sent me on a rabbit trail to find out what this UniversalApiContract stuff is and how to use it form native code but so far I am coming up very empty.
Could someone please provide me with some direction!! What do I even need to search for to begin to learn how to access these APIs natively? Is there some reading on windows runtime that I should undertake?
Thanks in advance and again I apologize for the general questions - not sure where else to turn.
[Expressed displeasure over how many people voted to close the thread without any useful response or suggestions]
Now, on to science.
After spending some time with this it would seem this is not possible. I was able to call the API from Win32 by using the Visual C++ Component Extensions. This allows you to use windows runtime and CLR like concepts but results in purely native code. As a side note, since I wanted to link this with an application that I did not want to recompile with this extension, I did this in a DLL and delay loaded it.
Unfortunately the call to install the voice command definition file failed with a COMException: The process has no package identity. This means I can successfully call the API, however it requires a package identity - in other words, it must be called from a Modern/Store/Universal App context with an application identity.
The only way remaining to me seems to be to use the Cortana background API to interface with a modern app I write in the background, and use it to broker calls from my Win32 app to Cortana through some sort of custom communication. Icky.
I hope this helps save someone else time.
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Iv written a program in C++ that takes a set of n points and two double variables as input and output a graph with some special properties. I also wrote some OpenGL codes to visualize this graph. I showed the result to my teacher and he liked it and asked me if I can build an applet so he can put it in his web site so the other students can use it. I almost know nothing about making an applet. What are my options? is it possible to do such thing?
note that the C++ program itself is not simple.
an output of my program looks like this.
You could make your C++ program some specialized web server, using HTTP server libraries like libonion or Wt; you might also use FastCGI (i.e. make your program become a FastCGI server application), or, if your program is quasi-static and produce simple output and if you accept having a crude web interface, perhaps make it use old CGI
Of course you need to learn more about Web technologies (e.g. on w3schools - which is not perfect). You need to learn HTML5 with a bit of HTTP, Javascript (perhaps with JQuery) & Ajax, Html5 Canvas, perhaps WebGL. Google browsers also have Native Client (NaCl).
But all this requires a significant amount of work (weeks or perhaps months; if you do it, please publish your software as free software)
BTW, you might be interested in graphviz ...
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Possible duplicate
What is the best open source example of a lightweight
Windows Application?
µTorrent is a small bit-torrent client, a really small one. It doesn't come with an installer, just a exe, you drop in your PATH somewhere. It's super lightweight and yet feature rich. Plus it is the work of one man. It's also closed-source.
Many people have been curious about how it has been written, and there are hints here and there about a custom library etc. But the question is, are there any programs with attributes like µTorrent that are available with source code--attributes like speed, small size, awesomeness.
Possible related question (/questions/9603/what-is-some-great-source-code-to-read), but think smaller than something like the Linux kernel.
Clarification: I don't want examples of bit-torrent source code, but anything which is used by tons of people (validation of awesomeness) and also fast, small and awesome!
I think you should take a look at Notepad++ if you want to see a feature-rich low-consumption of power software :)
Netcat
It's the program that started all of the curiousity behind networks and how things WORK.
Everyone's looked at this source code.
rTorrent is a lightweight, feature-rich, console-only open-source torrent client.
I like Frhed, a simple open-source Windows hex editor.
FRESHMEAT is a great place to start. There are lots of small open source programs available that you can study.
Examples:
XML-RPC specification.C implementation for Python. Its easy to learn and its fun.
Heapq [\Lib\heapq.py] , xml-rpc [\Lib\xmlrpc] and lots of other codes in Python library are very well written.
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I'm trying to write a Firefox extension that writes Firefox's history into the Windows system history, which ought to be useful for folks at work who use IE and Firefox to get work done.
Adding pages to IE history appears simple enough (IUrlHistoryStg::AddUrl ought to do it). However, my experience with Firefox extensions is limited to small chrome hacks packaged together in an XPI.
From my initial reading, it appears that I have to create a XPCOM component that will insert URLs into history. I'm not sure this can be done using Javascript, and I don't have much experience in writing extensions that use XPCOM components.
Could anyone familiar with Firefox extension development please point to any tutorials about writing extensions that use XPCOM components, especially those written using C++? Or are there any open-source extensions that use components I could look at to learn more about this?