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Giving Focus to an App with this hWND

Posted on 2000-03-16
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Last Modified: 2008-02-26
I have used the GetForegroundWindow() fn. to obtain the handle to the window who currently has focus.  Now i am planning on moving the focus from this app to another via the AppActivate() fn.  What i want to know is, is there an function i can call that will allow me to set the original app as having focus again once i am done?  Specifically, is there a SetForegroundWindow() fn so that i may pass the hWnd that i got from GetForegroundWindow()?

Thanks
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Question by:aniston
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6 Comments
 
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Expert Comment

by:caraf_g
ID: 2623477
SetForegroundWindow()

Guess what. Yes.
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mcrider earned 80 total points
ID: 2623481
I already posted this in your previous question but here it is again:

Add the following to a module:

    ' ShowWindow() Commands
    Public Const SW_HIDE = 0
    Public Const SW_SHOWNORMAL = 1
    Public Const SW_NORMAL = 1
    Public Const SW_SHOWMINIMIZED = 2
    Public Const SW_SHOWMAXIMIZED = 3
    Public Const SW_MAXIMIZE = 3
    Public Const SW_SHOWNOACTIVATE = 4
    Public Const SW_SHOW = 5
    Public Const SW_MINIMIZE = 6
    Public Const SW_SHOWMINNOACTIVE = 7
    Public Const SW_SHOWNA = 8
    Public Const SW_RESTORE = 9
    Public Const SW_SHOWDEFAULT = 10
    Public Const SW_MAX = 10
     
    Declare Function SetFocusAPI Lib "user32" Alias "SetFocus" (ByVal hwnd As Long) As Long
    Declare Function SetForegroundWindow Lib "user32" (ByVal hwnd As Long) As Long
    Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long


Then you can do:

   SetFocusAPI iVal
   SetForegroundWindow iVal

You may also want to show the window if it's minimized:

   ShowWindow iVal, SW_SHOWNORMAL



Cheers!®©
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Expert Comment

by:caraf_g
ID: 2623482
Huh? You've already had this answered in your other question.
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LVL 14

Expert Comment

by:mcrider
ID: 2623487
By the way, if you want to know if the window is minimized and you need to show it, add the following to a module:

    Public Const WS_MINIMIZE = &H20000000
    Public Const GWL_STYLE = (-16)
    Declare Function GetWindowLong Lib "user32" _
        Alias "GetWindowLongA" (ByVal hWnd As Long, _
        ByVal nIndex As Long) As Long
    Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
     

Then in a subroutine, you can do:

   Dim lWinfo As Long
   Dim lhWnd As Long

   lhWnd = FindWindow(vbNullString, "Win32api.txt - WordPad")
   lWinfo = GetWindowLong(lhWnd, GWL_STYLE)
   If (lWinfo And WS_MINIMIZE) = WS_MINIMIZE Then
       Debug.Print "minimized"
   Else
       Debug.Print "not minimized"
   End If



By the way, I am using the FindWindow API above to find the window handle... To use it, all you have to do is pass the title of the window as the 2nd argument...


Cheers!®©
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Expert Comment

by:caraf_g
ID: 2623548
Cool. Behold the "Answer Grade" at the top of the thread. I only just spotted it now. So now you can get a clue whether an answer is worth looking at!
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LVL 14

Expert Comment

by:mcrider
ID: 2623567
Thanks for the points! Glad I could help!


Cheers!®©
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