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Questions tagged [vala]

Vala is an object-oriented programming language that allows modern programming techniques to be used to write applications that run on the GNOME runtime libraries, particularly GLib and GObject. Vala is syntactically similar to C#, and is compiled to C which is then compiled to a native binary using the C compiler of the platform.

Vala is an object-oriented programming language that allows modern programming techniques to be used to write applications that run on the runtime libraries, particularly and . Vala is syntactically similar to , and is compiled to which is then compiled to a native binary using the C compiler of the platform.

Some Linux distributions adopt, officially, Vala as the main development applications' language such as OS like regarded in the get started guide for developers.

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Executing system command in Vala

I would like to execute a command (like ls) in Vala, like the Python os.system function, or, better, the popen function. Any idea ?
NowhereToHide
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How to generate GIR files from the Vala compiler?

I am trying to create python bindings to a vala library using pygi with gobject introspection. However, I am having trouble generating the GIR files (that I am planning to compile to typelib files subsequently). According to the documentation valac…
D R
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How to set max width of GtkLabel properly?

I am writing a Vala application and using GtkLabels' in it. Problem is, I made my main window not resizable and when I'm adding labels with a long text to it, the window gets very big (when the window was resizable, all labels were fitting…
serge1peshcoff
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How can I import other files in Vala?

The question pretty much says it all- how could I import file2.vala to file1.vala?
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Compiling a Vala source On Windows

I compiled a vala program by using following command: valac test.vala Of course am I able to run the program on my computer, but when I am trying to run the .exe file on a different one I get following error: libglib-***.dll is missing on this…
kaiser
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Unit test framework for Vala

I am thinking of developing an application using Vala. I would like to write unit tests for my code - but I have not (as yet) found any actively maintained unit test frameworks for Vala (e.g. Valadate). Could anyone recommend a unit testing…
Homunculus Reticulli
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How to use a Qt GUI with Vala?

I have found zero documentation on this subject (Have I been searching in the wrong places? It seems strange to me). I simply need to be able to use a Qt GUI for my Vala application. An example would be appreciated.
RobinJ
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Gee HashMap containing methods as values

I'm trying to fill a Libgee HashMap where each entry has a string as key, and a function as value. Is this possible? I want this sort of thing: var keybindings = new Gee.HashMap (); keybindings.set ("h", this.show_help…
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Relationship Between Vala and Genie

From what I have read, core Gnome development began with C and this was extended by Vala (2006) and Genie (2008). Vala syntax appears to have been aimed at the Java/C# syntax/developer, whereas Genie appears to be aimed at Python (and a handful of…
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Vala. How do you delete all the children of a GTK container?

Solved. See the reply for examples. I have a container with children. I need to delete all the children. This is easy in C. Vala does not work. The following code produces an error missing type argument for collection. var a_box = new Box…
user4845927
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What's the difference between async methods and threads?

Can someone explain what's the difference between async methods and creating a thread in Vala? And where I should use one or another in my code?
serge1peshcoff
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How do Valas closures map to Genie?

The Vala Tutorial has an example about DBus using anonymous methods. Bus.own_name (BusType.SESSION, "org.example.DemoService", /* name to register */ BusNameOwnerFlags.NONE, /* flags */ on_bus_aquired, /* callback…
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How do I distribute a (open-source) Vala project?

One of the only languages that compiles to a high level language such as C, Vala has interested me for quite a bit. I've been wanting to start a small project with it, but I've been wondering how I would distribute it. The fact is, that it compiles…
Luca Matteis
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understanding vala compilation warnings

The compilation warnings below are not so clear to me, appart from the deprecation warhing, but the signature of the method in the valadoc : http://valadoc.org/#!api=gstreamer-1.0/Gst shows no other method signature. the other warning are more…
Max L.
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how to use the set_cell_data_func function in vala to change the layout of my cell depending on its content?

I'm trying to use the set_cell_data_func on a Gtk.TreeViewColumn. My code compiles but gives a segmentation error when running. I have also tried the insert_column_with_data_func instead but the result is the same. Here is my code, i hope you'll be…
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