C# Signature:

[DllImport("user32.dll")]
static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);

VB.NET Signature:

<DllImport("user32.dll", SetLastError:=True)> _
Public Function ShowWindowAsync(hWnd As IntPtr, <MarshalAs(UnmanagedType.I4)>nCmdShow As ShowWindowCommands) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

VB Signature:

Public Declare Function ShowWindowAsync Lib "user32" _
         (ByVal hWnd As Long, _
          ByVal nCmdShow As Long) As Long

User-Defined Types:

ShowWindowCommands

Notes:

None.

Tips & Tricks:

None.

Sample Code:

[DllImport("user32.dll")]
private static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);

private const int SW_RESTORE = 9;
IntPtr i= (Int64)this.Handle;
ShowWindowAsync(i, SW_RESTORE);

Windows console application (C#):

in console application:

using System.Runtime.InteropServices;
using System.Diagnostics;

[DllImport("user32.dll")]
private static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);

IntPtr handle = Process.GetCurrentProcess( ).MainWindowHandle;
ShowWindowAsync(handle, 0);

Alternative Managed API:

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