Feature Detection

Some features of Eto.Forms are only available on certain platforms. Check that a feature is supported before relying on it, so your app still works everywhere.

Control support

To check whether the current platform has a control, use Platform.Supports<T>():

public class MyForm : Form
{
    public MyForm()
    {
        if (Platform.Supports<TrayIndicator>())
        {
            // add a tray icon
        }
    }
}

type MyForm() as this =
    inherit Form()
    do
        if this.Platform.Supports<TrayIndicator>() then
            // add a tray icon
            ()

class MyForm(forms.Form):
    def __init__(self):
        super(MyForm, self).__init__()
        if self.Platform.Supports[forms.TrayIndicator]():
            # add a tray icon
            pass

Feature support

Controls with features that only some platforms support have a property to check first, named like SupportsFeature or FeatureIsSupported. For example:

• TextArea.SpellCheckIsSupported
• ColorPicker.SupportsAllowAlpha
• Drawable.SupportsCreateGraphics
• Application.QuitIsSupported

Some properties are hints rather than hard requirements. For example, Dialog.DisplayMode attaches a dialog to its parent window on platforms that can, and otherwise shows it the way that platform normally would.