How to bring external application window on top? [duplicate] - vb.net

Question

This question already has an answer here:
Check process is running, then switch to it?
(1 answer)
Closed 5 years ago.
I have Outlook express always on top and Google chrome behind Outlook. How to bring running Google chrome on top of OutLook express using visual basic?
Following opens a new application but i want existing Google chrome to bring on top?
Shell("C:\Program Files (x86)\Google\Chrome\Application\chrome.exe", AppWinStyle.MaximizedFocus)
EDIT:
Public Class Form1
Declare Auto Function FindWindow Lib "User32.dll" (ByVal lpClassName As String, ByVal lpWindowName As String) As IntPtr
Declare Auto Function SetForegroundWindow Lib "User32.dll" (ByVal Hwnd As IntPtr) As Long
'Private Declare Function SetForegroundWindow Lib "user32.dll" (ByVal hwnd As Int32) As Int32
Declare Auto Function FindWindowEx Lib "User32.dll" (ByVal hwndParent As IntPtr, ByVal hwndChildAfter As IntPtr, ByVal lpszClass As String, ByVal lpszWindow As String) As IntPtr
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
'Shell("C:\Program Files (x86)\Google\Chrome\Application\chrome.exe", AppWinStyle.MaximizedFocus)
Dim Handle As IntPtr = FindWindow("Notepad", Nothing)
If Handle.Equals(IntPtr.Zero) Then
End
End If
'Dim HandleChildOne As IntPtr = FindWindowEx(Handle, IntPtr.Zero, "Notepad", IntPtr.Zero)
'If HandleChildOne.Equals(IntPtr.Zero) Then
'End
'End If
Dim Result As Integer = SetForegroundWindow(Handle)
If Result.Equals(0) Then
End
Else
MsgBox("Above 0: success. https://msdn.microsoft.com/en-us/library/windows/desktop/ms633539(v=vs.85).aspx " & Result)
End If
End Sub
Private Sub Label1_Click(sender As Object, e As EventArgs) Handles Label1.Click
End
End Sub
End Class

Answer 1

Method 1 of #Codexer works (Method 2, 3 also included for research later). Note that, Chrome window position/size get unexpectedly modified while applying ShowWindow(Handle, 9)
Public Class Form1
Declare Auto Function FindWindow Lib "User32.dll" (ByVal lpClassName As String, ByVal lpWindowName As String) As IntPtr
Declare Auto Function SetForegroundWindow Lib "User32.dll" (ByVal Hwnd As IntPtr) As Long
Declare Auto Function FindWindowEx Lib "User32.dll" (ByVal hwndParent As IntPtr, ByVal hwndChildAfter As IntPtr, ByVal lpszClass As String, ByVal lpszWindow As String) As IntPtr
Declare Auto Function SetWindowPos Lib "User32.dll" (ByVal hWnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long)
Const HWND_TOPMOST = -1
Const HWND_NOTOPMOST = -2
Const SWP_NOSIZE = &H1
Const SWP_NOMOVE = &H2
Const SWP_NOACTIVATE = &H10
Const SWP_SHOWWINDOW = &H40
Declare Auto Function ShowWindow Lib "User32.dll" (handle As IntPtr, nCmdShow As Integer) As Boolean
Declare Auto Function IsIconic Lib "User32.dll" (handle As IntPtr) As Boolean
' Method 1
Private Sub StartOrShowProcess(ByVal strProcessName As String)
Try
Dim handle As IntPtr
Dim proc As Process() = Process.GetProcessesByName(strProcessName)
If proc.Count > 0 Then
For Each procP As Process In proc
handle = procP.MainWindowHandle
' Do we have handle and minimized or not minimized?
If handle <> 0 Then
ShowWindow(handle, 9)
SetForegroundWindow(handle)
End If
Next
Else 'Not running or started...
Process.Start(strProcessName)
End If
Catch ex As Exception
'Handle your error...
End Try
End Sub
' Method 2/3
Private Sub Old()
'=== Method 1: Target chrome > as new window
'Shell("C:\Program Files (x86)\Google\Chrome\Application\chrome.exe", AppWinStyle.MaximizedFocus)
'=== Method 2: Target chrome > Target specific TAB
Dim Handle As IntPtr = FindWindow(Nothing, "Nieuw tabblad - Google Chrome")
If Handle.Equals(IntPtr.Zero) Then
Handle = FindWindow(Nothing, "TITLE... - Google Chrome")
If Handle.Equals(IntPtr.Zero) Then
End
End If
End If
' !!!ShowWindow!!!! help to detect from minmize state
ShowWindow(Handle, 9)
Dim Result As Integer = SetForegroundWindow(Handle)
If Result.Equals(0) Then
End
End If
End Sub
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Me.TopMost = True
StartOrShowProcess("chrome")
End Sub
Private Sub Label1_Click(sender As Object, e As EventArgs) Handles Label1.Click
End
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
End
End Sub
End Class