GNOME.org

Platform Demos in C

Prerequisites

To compile these platform demos you will need a C compiler, for example gcc. You will also need GTK+ 3 including headers and pkg-config files. Linux distributions usually abstract GTK+ 3 headers and pkg-config files into separate packages called gtk3-devel, gtk3-dev or similar.

Guidelines for new developers

Beyond the prerequisites mentioned above, several tools has been developed to assist you further in developing your GNOME application. GNOME also recommends a specific coding style and conventions which this section will elaborate further upon.

Coding Style

Most applications in the GNOME project is written in the GNU style of indentation. The tutorials and code examples presented are following this convention and you are recommended to do so too.

Executing Code

To run the code samples:

  1. Copy and paste the code into filename.c

  2. In the terminal type:

    gcc filename.c `pkg-config --cflags --libs gtk+-3.0` -o filename
    ./filename

For more information about compiling GTK+ programs see Compiling GTK+ Applications on UNIX.

Widget Code Examples

Numeric and text data entry

Entry — A single line text entry field
Scale — A slider widget for selecting a value from a range
SpinButton — Retrieve an integer or floating point number

TreeView widget

Selectors

File selectors

Font selectors

Color Selectors