How to close the Recycle Bin using VB.Net or C#.Net

Question

i would like to call a function that Closes the recycle bin window. This is the code that opens the recycle bin, however i can't find the code that closes it :

Process.Start("explorer.exe", "/n, ::{645FF040-5081-101B-9F08-00AA002F954E}")

Answer 1

Process.Start returns you the Process started. Try this:

Process p=Process.Start("explorer.exe", 
              "/n, ::{645FF040-5081-101B-9F08-00AA002F954E}");
p.CloseMainWindow();
//OR
p.Close();

Answer 2

If it has been opened by someone else you might need to use the win32 api - eg. findwindow then sendmessage to send the close message.

Answer 3

Well as Adam has specified you need to use findwindow and sendmessage API to find and then close the window.

Here's a sample code

Imports System.Runtime.InteropServices

Public Class Form1

    <DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> _
    Private Shared Function FindWindow(ByVal lpClassName As String, ByVal lpWindowName As String) As IntPtr
    End Function

    <DllImport("user32.dll", SetLastError:=True)> _
    Public Shared Function SendMessage(ByVal hWnd As IntPtr, ByVal Msg As Integer, ByVal wParam As IntPtr, ByVal lParam As IntPtr) As IntPtr
    End Function

    Public Const WM_SYSCOMMAND As Integer = &H112
    Public Const SC_CLOSE As Integer = &HF060



    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim hwnd As IntPtr

        hwnd = FindWindow("CabinetWClass", "Recycle Bin")


        if hwnd = Nothing then
             MessageBox.Show("Recycle Bin not found.")
        else
             SendMessage(hwnd, WM_SYSCOMMAND, SC_CLOSE, 0)
        end if

    End Sub
End Class

Converting the code to c# is pretty easy, still let me know if you face any problem while converting the code.

Source : Code Project

Edit 1 : You can use Spy++ to find the classname and windowname provided with .net tools.