[SOLVED] FindWindow function to find Google Chrome personal user's windows.

[Edgemeal]

Can you tell me the exact method ? I mean I'm really confused. Otherwise I have to close all window and run one by one and close them after completing the task and re open whenever required. :/

You can try this, should get the window handle and caption text for the active tab in each open Chrome, tested on Win7 only,...

Imports System.Text
Imports System.Runtime.InteropServices

Public Class Form1

    Private chromeWindows As New Dictionary(Of IntPtr, String)

    Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
        chromeWindows.Clear() ' clear dic.
        EnumWindows(AddressOf ClassesByName, IntPtr.Zero) ' enum windows w/classname "Chrome_WidgetWin_1".
        ' display contents
        If chromeWindows.Count = 0 Then
            MessageBox.Show("None found, list is empty!")
        Else ' do something with the results,...
            For Each chrome In chromeWindows
                Debug.WriteLine("hWnd={0}, Title={1}", chrome.Key, chrome.Value)
            Next
        End If
    End Sub

    ' Helper/API Funcs...
    Private Function ClassesByName(ByVal hWnd As IntPtr, ByVal lParam As IntPtr) As Boolean
        If ClassName(hWnd) = "Chrome_WidgetWin_1" Then 'Google Chrome main window class name.
            Dim capText As New StringBuilder(255) ' get title bar txt/caption text
            If GetWindowText(hWnd, capText, capText.Capacity) > 0 Then ' only add if has text.
                chromeWindows.Add(hWnd, capText.ToString) ' add window handle and caption text to dic.
            End If
        End If
        Return True
    End Function

    Private Function ClassName(ByVal hWnd As IntPtr) As String
        Dim sbClassName As New StringBuilder(256)
        GetClassName(hWnd, sbClassName, 256)
        Return sbClassName.ToString
    End Function

    <DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> _
    Private Shared Function GetWindowText(ByVal hwnd As IntPtr, ByVal lpString As StringBuilder, ByVal cch As Integer) As Integer
    End Function

    <DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> _
    Private Shared Function GetClassName(ByVal hWnd As IntPtr, ByVal lpClassName As StringBuilder, ByVal nMaxCount As Integer) As Integer
    End Function

    Private Declare Function EnumWindows Lib "user32" (ByVal lpEnumFunc As EnumWindowsProcDelegate, ByVal lParam As IntPtr) As Boolean
    Private Delegate Function EnumWindowsProcDelegate(ByVal hWnd As IntPtr, ByVal lParam As IntPtr) As Boolean

End Class

You may also want to take a look into UI Automation, don't use it myself but fwiw found one example here,
http://www.bluelightdev.com/get-list-open-chrome-tabs