pinvoke.net: Edit: kernel32.allocconsole

@msdn=https://docs.microsoft.com/en-us/windows/console/allocconsole
@pinvoke=http://pinvoke.net/$$$.htm

Summary: The AllocConsole API

!!!!C# Signature:
 [DllImport("kernel32.dll")]
 [return: MarshalAs(UnmanagedType.Bool)]
 static extern bool AllocConsole();

!!!!VB.NET Signature:
 Declare Function AllocConsole Lib "kernel32.dll" () As Boolean

!!!!User-Defined Types:
None.

!!!!Notes:
If you need to check for an existing console (ie, if the program was launched from the command window) please see AttachConsole,

!!!!Tips & Tricks:
This is a simple way to create a "dual-mode" application can be a console or windows forms application. 
!!!!Sample Code:
	// Compile as a Windows Forms app.
	[STAThread]
	static void Main(string[] args) 
	{
		if (args.Length < 1)
		{
			Application.Run(new Form1());
		}
		else
		{
			AllocConsole();
			Console.WriteLine("Hello, World!");
			Console.Write("Press a key to continue...");
			Console.Read();
		}
	}
!!!!Sample Code:
    ' Compile as a Windows Forms Application
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

If Not AllocConsole() Then
                    MsgBox(String.Format("Failed to attach console with error: {0}", Marshal.GetLastWin32Error()))
            End If

Console.WriteLine("Just saying 'hi' from the console.. :)")
            Console.WriteLine("{0} + {1} = {2}", 100, 200, (100 + 200))

End Sub

!!!!Alternative Managed API:
Do you know one?  Please contribute it!

Documentation: AllocConsole@msdn on MSDN