Forces android to scan an image file to appear in the phone's gallery.
See also: CreateImage, CreateCameraView, ScreenShot.
Example - Add Image to Gallery
function OnStart()
{
img = app.CreateImage( null, 1, 1 );
img.SetPaintColor( "green" );
img.DrawCircle( 0.5, 0.5, 0.3 );
img.Save( app.GetAppPath() + "/circle.jpg" );
app.ScanFile( "circle.jpg" );
app.ChooseImage();
}