Visual Basic FAQ

SetWindowPlacement: Activating a Window Without Focus
Posted:   Saturday December 28, 1996
Updated:   Monday December 26, 2011
Applies to:   VB4-32, VB5, VB6

This code demonstrates loading and showing a form while keeping the focus on the main form.
 BAS Module Code

 Form Code
Start a new project, and add two forms to it, using the default names. On Form1, place a Command button (Command1), and add the following:

Option Explicit
' Copyright 1996-2011 VBnet/Randy Birch, All Rights Reserved.
' Some pages may also contain other copyrights by the author.
' Distribution: You can freely use this code in your own
'               applications, but you may not reproduce 
'               or publish this code on any web site,
'               online service, or distribute as source 
'               on any media without express permission.
Private Const SW_SHOWNORMAL = 1
Private Const SW_SHOWMINIMIZED = 2
Private Const SW_SHOWMAXIMIZED = 3
Private Const SW_SHOW = 5

Private Type RECT
   Left    As Long
   Top     As Long
   Right   As Long
   Bottom  As Long
End Type

Private Type POINTAPI
   x       As Long
   y       As Long
End Type

   length            As Long
   flags             As Long
   showCmd           As Long
   ptMinPosition     As POINTAPI
   ptMaxPosition     As POINTAPI
   rcNormalPosition  As RECT
End Type

Private Declare Function GetWindowPlacement Lib "user32" _
   (ByVal hwnd As Long, lpwndpl As WINDOWPLACEMENT) As Long

Private Declare Function SetWindowPlacement Lib "user32" _
   (ByVal hwnd As Long, lpwndpl As WINDOWPLACEMENT) As Long

Private Sub Command1_Click()

    Dim hWndToActivate As Long
    Dim currRect As RECT
    hWndToActivate = Form2.hwnd
    With currWinP
       .length = Len(currWinP)
       Call GetWindowPlacement(hWndToActivate, currWinP)

       .length = Len(currWinP)
       .flags = 0&
       .showCmd = SW_SHOWNOACTIVATE
    End With
    Call SetWindowPlacement(hWndToActivate, currWinP)
End Sub
Run the project. Pressing the command button loads and shows Form2, however the focus remains on Form1.


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