// This method is virtual to ensure that it can be overridden in a derived class.
protected virtual void OnFocusChanged(FocusChangedEventArgs e)
{
EventHandler<FocusChangedEventArgs> handler = FocusChanged;
if (handler != null)
{
handler(this, e);
}
}
public void AutoFocus()
{
try
{
camera.SetCameraProperty(CameraControlProperty.Focus, 0, CameraControlFlags.Auto);
FocusChangedEventArgs args = new FocusChangedEventArgs();
args.Focus = -1;
OnFocusChanged(args);
}
catch (Exception)
{
if (canvas != null)
setFrame(canvas, null);
}
}
public void SetFocus(int value)
{
try
{
camera.SetCameraProperty(CameraControlProperty.Focus, value, CameraControlFlags.Manual);
FocusChangedEventArgs args = new FocusChangedEventArgs();
args.Focus = value;
OnFocusChanged(args);
}
catch (Exception)
{
if (canvas != null)
setFrame(canvas, null);
}
}
private void Focus_Changed(object sender, FocusChangedEventArgs e)
{
SetFocus(e.Focus);
}
