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Switch User in Windows XP

Posted on 2002-03-21
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Last Modified: 2012-05-04
I would like to know how to use Windows XP's new Fast User Switching feature to switch user in VB code.
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Question by:SimonORorke
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4 Comments
 
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Expert Comment

by:RainUK
ID: 6889038
Have you looked on MSDN? Although I have not had a look in MSDN lately I assume it is a set of Win32 APIs, probably similar to something like Win2Ks LogonUser, LoadUSerProfile, SwitchDesktop etc.
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Author Comment

by:SimonORorke
ID: 6890214
I've scoured MSDN!  I did find what what looks like a way of doinng it with MFC, which is no good for VB.  I could not see how to do it with API, though that must be possible.
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Accepted Solution

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jbil earned 200 total points
ID: 6891598
See KB Q310153 to do in in c++

"HOW TO: Write an Application That Supports Fast User Switching in Windows XP (Q310153)"

Here is cheesy way to do it in vb by kebd_event...

Private Const VK_RWIN = &H5C
Private Const VK_LWIN = &H5B
Const KEYEVENTF_EXTENDEDKEY = &H1
Const KEYEVENTF_KEYUP = &H2

Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)

Private Sub Form_Click()
keybd_event VK_LWIN, 0, 0, 0
   
    keybd_event vbKeyL, 0, 0, 0
   
    keybd_event VK_LWIN, 0, KEYEVENTF_KEYUP, 0
    keybd_event vbKeyL, 0, KEYEVENTF_KEYUP, 0

End Sub
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Author Comment

by:SimonORorke
ID: 6893382
Hello jbil

Q310153 has much interesting info about coding to support user switching in applications, but does not, as far as I can see, actually tell me how to switch users.  However, your "cheesy" VB solution will do nicely!  Thanks.

Simon
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