Is it posible to compile a Client X Qt app to run in Window?

Jose LZ

Hello everybody.

I have a Qt application target for Linux but is executed remotely, with ssh -X.
Now, the target OS is Windows.

Is it posible recompile app for Windows target but display on a remote X Server.

Thanks

SGaist

Hi and welcome to devnet,

When using ssh you are usually executing the application on the remote machine with forwarding the X session back to the caller machine.

So you don't need to build your application for Windows. However you need to have an X server on your Windows machine like xming.

Jose LZ

Yes. But remote is a Windows Machine.
I explain myself better.
If I compile a Qt application on a Windows machine (Qt for Windows) I get a Qt Windows Native Application.
If I compile the same source code on a Linux machine, I get a Qt Linux Native (usually client X) application.
The question is :

is it posible generate a Qt Windows Native Client X Application?

So, when I will login from my Local machine (usually Linux) to the Remote Windows machine with ssh -X and execute the application (on Windows remote machine), the application can show the display on my local X Server (Linux) machine)

Thanks in advanced.

mrjj

Hi
Since there is no default xserver on windows, i dont think its possible.
without some new form of QPA
http://doc.qt.io/qt-5/qpa.html
(that knows the actual xserver you would be using)

With a windows server, its possible to serve one application to a remote desktop
https://technet.microsoft.com/en-us/library/cc731923.aspx?f=255&MSPPError=-2147217396

Jose LZ

@mrjj Thanks for the reply.

Yes, I agree that qpa can be a solution but it sound that it should be done yet.

From Xming X server you can execute X clients on Windows and show the display on Windows or Linux. I suppose that it is posible build a X client with MinGW-w64

If this is true, why we can't build a Qt Windows as X client Application ? It sound that should be possible, but I don't know how.

Best regards.

mrjj

Hi
Yes the reverse is pretty easy.
I use
https://sourceforge.net/projects/vcxsrv/
It can even run linux executable in WSL (Windows Subsystem for Linux) meaning you can run an native linux app on windows.
But I have not seen any SDK or x server client libs that would allow to run and forward GDI windows apps.

We simply miss the a windows version of Xlib to link to.
Im sure one could get something running with cygwin + mingw but that would not be a normal windows app and require cygwin to run.

Maybe there is some way for a native X server windows app but its not one i cant find or see currently.

Lets see if others have other ideas :)

Jose LZ

Hi
This thread ask the same question. It seems possible but nobody knows.