#includeThe above example creates a new instance of the DrawingContext class, and then uses the "get_height" method to retrieve the height of the drawing area. The height value is then printed to the console. The specific package or library used for the DrawingContext class will depend on the programming environment being used. For example, in Microsoft Visual Studio, this class is part of the "Windows Forms" library, which is included with the .NET Framework.int main() { DrawingContext ctx; int height = ctx.get_height(); cout << "The height of the drawing context is: " << height << endl; return 0; }