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DWT - D Widget Toolkit

DWT is a library for creating cross-platform GUI applications. It's a port of the SWT Java library from Eclipse. DWT is compatible with D2 using the standard library (Phobos) and D1 using Tango.



  1. Install all the requirements
  2. Clone the repository by running:

    $ git clone --recursive git://
  3. Compile the base and SWT library by running:

    $ rdmd build base swt

    If need 64-bit libraries, please add -m64 flag to options:

      $ rdmd build base swt -m64

    If need 32-bit COFF libraries, please add -m32mscoff flag:

      $ rdmd build base swt -m32mscoff

If you use D1 with Tango, please replace rdmd build to rake. For example: $ rdmd build base swt -> $ rake base swt



All required files are included in the repository.


For Ubuntu, use the packages below. For other systems use the corresponding packages available in the system package manager.

  • libcairo2-dev
  • libglib2.0-dev
  • libpango1.0-dev
  • libxfixes-dev
  • libxdamage-dev
  • libxcomposite-dev
  • libxcursor-dev
  • libxrandr-dev
  • libxi-dev
  • libxinerama-dev
  • libxtst-dev
  • libgtk2.0-dev
  • libgnomeui-dev

For D1

  • Tango
  • Ruby
  • Rake 0.8.x (included in Ruby 1.9)

Building Hello World

  1. Follow the build instructions above
  2. Enter the following code in a file called main.d:

    module main;
    import org.eclipse.swt.widgets.Display;
    import org.eclipse.swt.widgets.Shell;
    void main ()
        auto display = new Display;
        auto shell = new Shell;;
        while (!shell.isDisposed)
            if (!display.readAndDispatch())
  3. Compile by running:
    For Windows:

    $ dmd main.d -I<dwt>\imp -J<dwt>\res -L+<dwt>\lib\ ^
      "-L+org.eclipse.swt.win32.win32.x86.lib" "-L+dwt-base.lib" ^

    If you use Microsoft linker:

    $ dmd main.d -I<dwt>\imp -J<dwt>\res -L/LIBPATH:<dwt>\lib ^
      "-Lorg.eclipse.swt.win32.win32.x86.lib" "-Ldwt-base.lib" ^
      -L/SUBSYSTEM:Windows -L/ENTRY:mainCRTStartup -m64

    If use 32-bit COFF, replace -m64 to -m32mscoff.

    For Linux:

    $ dmd main.d -I<dwt>/imp -J<dwt>/org.eclipse.swt.gtk.linux.x86/res -L-L<dwt>/lib \
      -L-l:org.eclipse.swt.gtk.linux.x86 \
      -L-l:dwt-base -L-lgtk-x11-2.0 -L-lgdk-x11-2.0 -L-latk-1.0 -L-lgdk_pixbuf-2.0 \
      -L-lgthread-2.0 -L-lpangocairo-1.0 -L-lfontconfig -L-lXtst -L-lXext -L-lXrender \
      -L-lXinerama -L-lXi -L-lXrandr -L-lXcursor -L-lXcomposite -L-lXdamage -L-lX11 \
      -L-lXfixes -L-lpango-1.0 -L-lgobject-2.0 -L-lgmodule-2.0 -L-ldl -L-lglib-2.0 \
      -L-lcairo -L-lgnomeui-2

    Where <dwt> is the path to where DWT was cloned.

Updating the Repository

$ git pull
$ git submodule update --init --recursive


To enable debug build (symbols for debugging):

$ rdmd build DEBUG=1 base swt

Alternatively you can set the environment variable DEBUG to '1'.

Build the Snippets

$ rdmd build swtsnippets

To build a single snippet run:

$ rdmd build swtsnippets[Snippet107]

Show Available Rake Tasks

$ rdmd build -T