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ShellExecute ignores ShowCmd setting with IE 7

Posted on 2007-04-06
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Last Modified: 2010-08-05
I am using ShellExecute to launch a browser in a web page, however it appears to totally ignore the nShowCmd parameter. Below are the declarations I am using:

If I pass another file - for example a text file - then the parameter is obeyed - minimize, hide etc - but if I pass a URL the browser always displays full screen with focus. I want to start the browser either minimized or hidden - Does anyone know how to get this to work?

Private Declare Function ShellExecute Lib _
     "shell32.dll" Alias "ShellExecuteA" _
     (ByVal hWnd As Long, ByVal lpOperation _
     As String, ByVal lpFile As String, ByVal _
     lpParameters As String, ByVal lpDirectory _
     As String, ByVal nShowCmd As Long) As Long
     
Public Enum EShellShowConstants
    essSW_HIDE = 0
    essSW_MAXIMIZE = 3
    essSW_MINIMIZE = 6
    essSW_SHOWMAXIMIZED = 3
    essSW_SHOWMINIMIZED = 2
    essSW_SHOWNORMAL = 1
    essSW_SHOWNOACTIVATE = 4
    essSW_SHOWNA = 8
    essSW_SHOWMINNOACTIVE = 7
    essSW_SHOWDEFAULT = 10
    essSW_RESTORE = 9
    essSW_SHOW = 5
End Enum
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Question by:purplesoup
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RobSampson earned 500 total points
ID: 18915880
When you pass the text file, it will open with notepad, which will obey the window sizes.  I have a feeling (but I've never tried / confirmed it) that Windows explorer may behave differently, and when you send a URL, Windows Explorer handles the request, and changes itself to IE.  When you use ShellExecute, try explicity executing Inernet Explorer, passing a URL:
iexplore.exe "http://url.com/"

Rob.
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Author Comment

by:purplesoup
ID: 18917406
Interestingly it doesn't seem to mind if you pass "iexplore.exe" or just "explorer", but ShellExecute wants something passed as the lpFile parameter when you pass a URL, otherwise the nShowCmd option just appears to be ignored.

Thanks for your help - that solves the problem!
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