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Bring Window into focus

Posted on 2010-09-09
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Last Modified: 2013-12-26
I need the code in vb6 to bring a webpage in IE out of the tray and into focus and active and maximize and on top.
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Question by:rjef
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LVL 8

Expert Comment

by:ragnarok89
ID: 33640546
place this in a module :

Declare Function BringWindowToTop Lib "user32" Alias "BringWindowToTop" (ByVal hwnd As Long) As Long


place this in the event :

BringWindowToTop(WebBrowser1.Handle)

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Author Comment

by:rjef
ID: 33640643
I am not using webbrowser1
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LVL 6

Expert Comment

by:judgeking
ID: 33655807
I think this will do what you want:
Public Sub ActivateApp(Title As String, Optional Maximize As Boolean = False)
  Dim lHWnd As Long
  
  AppActivate Title, False 'ie: "Google"

  If Err.Number = 0 Then
    lHWnd = GetForegroundWindow
    
    If lHWnd <> 0 Then
      If Maximize Then
        SendMessage lHWnd, WmSysCommand, ScMaximize, 0
        Call ShowWindow(lHWnd, SwShowMaximized)
      Else
        SendMessage lHWnd, WmSysCommand, ScRestore, 0
        Call ShowWindow(lHWnd, SwRestore)
      End If
      
      BringWindowToTop lHWnd
    End If
  End If
End Sub

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LVL 6

Expert Comment

by:judgeking
ID: 33655811
Sorry, you'll need these declarations too:
Public Const SwShowMinNoActive = 7
Public Const SwShowNA = 8
Public Const SwRestore = 9
Public Const SwShowDefault = 10

Public Const ScSize = &HF000&
Public Const ScSeparator = &HF00F&
Public Const ScMove = &HF010&
Public Const ScMinimize = &HF020&
Public Const ScMaximize = &HF030&
Public Const ScClose = &HF060&
Public Const ScRestore = &HF120&
Public Const ScScreensave = &HF140&

Public Const WmSysCommand = &H112&

Public Declare Function BringWindowToTop Lib "user32" (ByVal hwnd As Long) As Long
Public Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Public Declare Function GetForegroundWindow Lib "user32" () As Long
Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Public Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long

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Author Comment

by:rjef
ID: 33661872
it doesn't work everytime.  Sometimes i have to call it 2 or 3 times to bring it back into focus after i have minimized it.  Also it doesn't maximize it at all.
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Author Comment

by:rjef
ID: 33661904
maybe i am not doing it correclty.  I put the appactive sub into a command buton
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LVL 6

Expert Comment

by:judgeking
ID: 33662518
Looks like the whole Declare section didn't paste properly above, you're probably getting an error on SwShowMaximized not being defined.  Here's the whole thing again:

My form code is just:

Option Explicit

Private Sub Command1_Click()
  ActivateApp "Google", True
End Sub

Option Explicit

Public Const HwndTopmost = -1
Public Const HwndNoTopmost = -2
Public Const SwpNoMove = &H1
Public Const SwpNoSize = &H2
Public Const SwpNoActivate = &H10
Public Const SwpShowWindow = &H40

Public Const SwHide = 0
Public Const SwNormal = 1
Public Const SwShowMinimized = 2
Public Const SwShowMaximized = 3
Public Const SwShowNoActivate = 4
Public Const SwShow = 5
Public Const SwMinimize = 6
Public Const SwShowMinNoActive = 7
Public Const SwShowNA = 8
Public Const SwRestore = 9
Public Const SwShowDefault = 10

Public Const ScSize = &HF000&
Public Const ScSeparator = &HF00F&
Public Const ScMove = &HF010&
Public Const ScMinimize = &HF020&
Public Const ScMaximize = &HF030&
Public Const ScClose = &HF060&
Public Const ScRestore = &HF120&
Public Const ScScreensave = &HF140&

Public Const WmSysCommand = &H112&

Public Declare Function BringWindowToTop Lib "user32" (ByVal hwnd As Long) As Long
Public Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Public Declare Function GetForegroundWindow Lib "user32" () As Long
Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Public Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long

Public Sub ActivateApp(Title As String, Optional Maximize As Boolean = False)
  Dim lHWnd As Long
  
  AppActivate Title, False 'ie: "Google"

  If Err.Number = 0 Then
    lHWnd = GetForegroundWindow
    
    If lHWnd <> 0 Then
      If Maximize Then
        SendMessage lHWnd, WmSysCommand, ScMaximize, 0
        Call ShowWindow(lHWnd, SwShowMaximized)
      Else
        SendMessage lHWnd, WmSysCommand, ScRestore, 0
        Call ShowWindow(lHWnd, SwRestore)
      End If
      
      BringWindowToTop lHWnd
    End If
  End If
End Sub

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Author Comment

by:rjef
ID: 33662846
i had to put all your public const and public declares into a module.  It maximizes now put doesn't always bring it into focus on the first click.  I have to sometimes click several times.
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LVL 6

Expert Comment

by:judgeking
ID: 33663159
You copied the code from my latest example?  If you're just maximizing an IE window, what's the name of the window?
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Author Comment

by:rjef
ID: 33663477
yes  
i was using the google example
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Author Comment

by:rjef
ID: 33663513
if i try to use your code directly i get the attached.
Presentation1.jpg
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LVL 6

Accepted Solution

by:
judgeking earned 500 total points
ID: 33663621
Yeah, the main code needs to be in a module and just the Command1_Click is in the form.  But it works for me every time.  Maybe you could minimize your VB window, just to be safe:

Private Sub Command1_Click()
  Me.WindowState = vbMinimized
  ActivateApp "Google", True
End Sub
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