Yes, I already have working C# bindings to the FreeRDP libraries. I developed those as part of my capstone project in software engineering. I had developed a screencasting application that would use the FreeRDP libraries to share screens using the RemoteFX codec. Performance would be surprisingly good.
These are C# bindings making use of pinvoke. This means you need to have the native libraries built for the C# code to properly import them. I have improved the native API around the same time I was originally developing those bindings to stabilize the ABI as much as possible and make it easier for the C# code to use. Having experience with JNI bindings for Java, I can say making Java bindings to the FreeRDP libraries would require quite a lot more work. Pinvoke does not require having "glue layer" code on the native side, even though it can be used. JNI bindings, on the other hand, definitely require that. You need to generate stubs and then implement the stubs in native code. It is also worth noting that the current C# bindings are using unsafe code. On Wed, Sep 5, 2012 at 6:12 PM, Huihong Luo <huisi...@yahoo.com> wrote: > That's nice, you are already working on C# client. > > Is it pure C#? or contains native DLLs that C# calls into? > > Do you use lots of DllImport in C# code? If not, translate C# to java > should be very straight forward. > > - huihong > > --- On *Wed, 9/5/12, Marc-André Moreau <marcandre.mor...@gmail.com>*wrote: > > > From: Marc-André Moreau <marcandre.mor...@gmail.com> > Subject: Re: [Freerdp-devel] Java client > To: "Huihong Luo" <huisi...@yahoo.com> > Cc: freerdp-devel@lists.sourceforge.net, "Alex Bligh" <a...@alex.org.uk> > Date: Wednesday, September 5, 2012, 3:08 PM > > > Hi, > > Is Java a hard requirement? I have C# bindings written for a large portion > of FreeRDP, you can definitely use them as a basis: > https://github.com/FreeRDP/FreeRDP-Sharp > > Those bindings are enough to have a RemoteFX connection performed from C#. > With a complete C# client you could have a consistent client across > platforms that takes advantage of the FreeRDP native libraries. > > As for paying someone to work on that, I could consider it, depending on > project requirements. I personally wish to see the C# client go forward. > Contact me offline if you're interested. > > Best regards, > - Marc-Andre > > On Wed, Sep 5, 2012 at 6:02 PM, Huihong Luo > <huisi...@yahoo.com<http://mc/compose?to=huisi...@yahoo.com> > > wrote: > > A pure java client with same features as FreeRDP will be a huge > undertaking, any particular reason why a java client is needed? FreeRDP > uses ARM NEON or Intel MMX optimizations for performance, all of these will > be lost with pure java client, besides the efforts. Since each major > platforms will have a native client, I don't see obvious reason for a java > client. > a C# client might make more sense, since Windows Mobile requires that. > > --- On Tue, 9/4/12, Alex Bligh > <a...@alex.org.uk<http://mc/compose?to=a...@alex.org.uk>> > wrote: > > From: Alex Bligh <a...@alex.org.uk <http://mc/compose?to=a...@alex.org.uk> > > > Subject: [Freerdp-devel] Java client > To: > freerdp-devel@lists.sourceforge.net<http://mc/compose?to=freerdp-devel@lists.sourceforge.net> > Date: Tuesday, September 4, 2012, 3:41 AM > > We are using freerdp to connect to Windows Server 2012 servers and it works > great. > > We would like to produce a similarly up to date Java RDP client, and open > source it, ideally as part of the freerdp project, but otherwise as a > separate project. We believe there are no open source Java RDP clients that > are being updated (the closest being properjavardp which hasn't had an > update in 5 years and connects to 2008 but not to 2012) - please correct me > if I'm wrong. > > We are aware of freerdp-webconnect but that has a number of difficulties > for us (such as lack of support for browsers that don't support websockets > and Canvas). > > We'd be prepared to pay developers to do this if it can be done quickly - > contact me on or off list if interested. For someone who knows the > protocol, I'd expect modifying properjavardp (which appears to be almost > there) is probably a relatively small job. > > Is this something the freerdp project would be interested in? If it were > based on properjavardp, does the fact that properjavardp is GPL and freerdp > is Apache licensed constitute an insurmountable hurdle to inclusion within > the freerdp project? > > -- > Alex Bligh > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Freerdp-devel mailing list > Freerdp-devel@lists.sourceforge.net<http://mc/compose?to=Freerdp-devel@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/freerdp-devel > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Freerdp-devel mailing list > Freerdp-devel@lists.sourceforge.net<http://mc/compose?to=Freerdp-devel@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/freerdp-devel > > > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Freerdp-devel mailing list Freerdp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freerdp-devel
