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Wiki page sandbox_gadgets.md changed with summary [] by Stephen M Houston

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pages/develop/e/sandbox_gadgets.md.txt
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@ -27,7 +27,7 @@ Running additional applications from within the gadget application will also bri
Enlightenment populates its list of gadgets by looking for ``.desktop`` files installed to the directory ``enlightenment/gadgets`` under Enlightenment's library directory, which can be found using ``pkg-config --variable=libdir enlightenment``. This gadget list is then made available for use through each gadget site's "Add Gadgets" popup. These popups display either a live view of the gadget or a still image.
When Enlightenment executes the gadget application it sets the environment variable ``E_GADGET_ID``. This environmental variable is how the gadget application will determine if it is being run as a gadget, if it is being displayed in the "Add Gadget" popup or if it has been added to a gadget site and has a unique gadget ID.
When Enlightenment executes the gadget application it sets the environment variable ``E_GADGET_ID``. This environmental variable is how the gadget application will determine if it is being run as a gadget, if it is being displayed in the "Add Gadget" popup or if it has been added to a gadget site and has a unique gadget ID. The environment variable ``E_GADGET_ORIENTATION`` is also set. It will be equal to one of three values. ``Horizontal`` ``Vertical`` or ``None`` and will indicate whether the gadget is being placed in a container that will layout its children horizontally, vertically, or neither. For the purpose of this example, this environment variable is not used.
To demonstrate this, a modified version of the Hello World app referenced in the Prerequisites section of this guide is used. Note the following important change: in the original version the window is created using ``elm_win_util_standard_add()``, but in order to achieve transparency on the window for use as a gadget this is changed to ``elm_win_add()`` in this guide.