I\'m creating a prototype for a piece of functionality that I will be implementing in an application, specifically I am displaying data from a collection to the console wind
No programming is required. Create a shortcut to your program on the desktop. Right-click it, Properties, Layout tab. Adjust the Width property of the screen buffer and window size.
But you can do it programmatically too, those Windows API functions you found are wrapped by the Console class as well. For example:
static void Main(string[] args) {
Console.BufferWidth = 100;
Console.SetWindowSize(Console.BufferWidth, 25);
Console.ReadLine();
}