Is it possible to create a virtual usb-stick and plug it from machine to machine to exchange data whithout rebooting?
Related
I have to write an application (like a step sequencer or arpeggiator) that sends MIDI note to a generic DAW , so I think that only way to implement such thing is to create a virtual MIDI device that should be recognised as a MIDI input/output interface by the OS.
I was wondering if this could be developed using Portmidi or if I need something more complicated.
OS X support is a must, Linux and Windows support is a nice to have.
Portmidi's design is based on the Windows MIDI API, which does not allow applications to create virtual ports (without installing a separate driver).
On OS X, you can create a virtual port with MIDISourceCreate; on Linux, by creating a port with the (SUBS_)READ/WRITE flags.
If you want to use a portable library, try RtMidi, which supports virtual ports on all platforms that have them.
For Windows, check out the virtual MIDI driver written by Tobias Erichsen. While he hasn't published the API, if you e-mail him he will work something out with you. It's very simple to work with and allows creation of MIDI ports directly from your application.
I would like to use the apache-jena-fuseki server to provide an ontology within a local network environment. And as such it should be editable from all machines in the LAN ideally via a webinterface (for simplicity).
The built-in webinterface of apache-jena-fuseki is doing that job well, BUT only from the machine running the server. Accessing the webinterface from other machines will somehow not provide the functionalities of managing (uploading & deleting) the datasets.
Is this a configuration issue? And, if yes, how and where should it be modified?
Any help on the matter is highly appreciated!
Cheers!
I'm using Delphi to develop real-time control software and over the last couple of years I have done some work running older Windows installations under Microsoft's VirtualPC and it works fine for 'pure software' development (i.e no or limited access to the outside world). Such tools seem able to work with network connections but I have to maintain software which performs I/O via the parallel port (via a device driver). We also use USB I/O. In the past I've liked Microsoft's virtual tools because it takes time to install a new operating system and then (in my case) install Delphi and a load of libraries and components to provide development support. In these circumstances I've not been too bothered by my lack of access to the low-level I/O ports.
I want to up my game and I'm happy to pay for a good virtualisation tool IF I can have access from it to the outside world, i.e I want to be able to configure it to allow access to my machine's parallel port and com ports in the same way as if it was running natively. This access has to be able to expose the parallel port in register terms, i.e to 'see' the port at address $03f8 for example and to support I/O operations of those registers (via the appropriate kernel access) as my Windows 7 64-bit installation is able to do.
I see that there are a number of virtualisation solution out there now but it's quite hard to acertain the capability of each at such a low level. Does anyone have any experience or knowledge in this area?
The VMware products would be suited best for this. You can add virtual serial and parallel ports and forward them to a physical port on the host, or even to a file or a named pipe.
You can also connect any USB device that is connected to the host machine.
This works with VMware Workstation, but might even work with the free VMware player too.
I really have no idea how to ask this, so with that have no idea where to search either. So.. I have a unique situation I think.
I have virtual box installed, with a local running server on it. I access it through my windows machine the host machine rather. via 127.0.0.1:3001. So I am here developing an app that can only be hosted on the virtual machine, as there are a lot of moving parts specific to it that can't be hosted on a WAMP or even a typical web-server elsewhere. The vm OS is Ubuntu. So here I am with a slight issue I want to see how this looks on my iPad, and a couple other tablets as the software being built into the VM is browser based as far as the GUI goes.
So theres the pretense. Heres the delima I want to use the built in browser on ipad to navigate to the browser based portion of my app on the VM like I can do through the Host machine. But Im not entirely sure how to achieve that. Its gotta be done over Wifi but what would I need to do to set that up accordingly?
Host Machine is Windows 7 Ultimate, VM is Ubuntu 10.x. This is not a screen sharing notion either. I don't want a to remote view the PC I want to type in the equivilant of 127.0.0.1:3001 into my ipad browser and view the service like I do vm to host machine.
Change network virtual card on virtual machine parameters. You should select 'bridget' card insteat NAT or Host only. In this way virtual machine get a network IP and you can connect to this IP from your IPAD.
Forward works great for things like this https://forwardhq.com/
I want to create a client server application to test socket created and threads are running between client and server.
I want to check this for internet application.
But being on local machine. I cannot check.
You could run a virtual machine on your real machine and a bridge-mode network connection between the two. Then run the server on one and the client on the other.
However, you will not get a good picture of how well it responds under heavily loaded network conditions. For that you truly need a private network with a phantom load generator.
VirtualBox, VirtualPC, and vmware can do this. You might get better/more responses on superuser.com.