pinvoke.net: Edit: shell32.SHEmptyRecycleBin

@msdn=https://docs.microsoft.com/en-us/windows/desktop/api/shellapi/nf-shellapi-shemptyrecyclebina
@pinvoke=http://pinvoke.net/$$$.htm

Summary: The SHEmptyRecycleBin API

!!!!C# Signature:
 [DllImport("shell32.dll")]
 static extern int SHEmptyRecycleBin(IntPtr hWnd, string pszRootPath,
   uint dwFlags);
!!!!User-Defined Types:
None.

!!!!Notes:
None.

!!!!Tips & Tricks:
If you are interested in this you might want to use the SHFileOperation to move things to the recycle bin.

!!!!Sample Code:
Here is a simple example of calling based on the above declaration.  Specifying 'rootPath' will empty the recycle bin of a specific drive.

public class ShellBin
	{
		[DllImport("shell32.dll")]
		static extern int SHEmptyRecycleBin(IntPtr hWnd, string pszRootPath, uint dwFlags);

//     No dialog box confirming the deletion of the objects will be displayed.
		const int SHERB_NOCONFIRMATION = 0x00000001;
		//     No dialog box indicating the progress will be displayed. 
		const int SHERB_NOPROGRESSUI = 0x00000002;
		//     No sound will be played when the operation is complete. 
		const int SHERB_NOSOUND = 0x00000004;

public static void EmptyRecycleBin()
		{
			BinUtils.EmptyRecycleBin ( string.Empty );
		}

public static void EmptyRecycleBin( string rootPath )
		{
			int hresult = SHEmptyRecycleBin(IntPtr.Zero, rootPath, 
					SHERB_NOCONFIRMATION | SHERB_NOPROGRESSUI | SHERB_NOSOUND);
			System.Diagnostics.Debug.Write(hresult);
		}
	}

!!!!Alternative Managed API:
Omnicoder's Managed Windows API: http://www.fileden.com/files/2008/4/5/1852663/ManWinAPI.zip

Documentation: SHEmptyRecycleBin@msdn on MSDN

FYI, couldn't find documentation for this but if the recycle bin is already empty, it will return -2147418113 (0x8000FFFF (E_UNEXPECTED))