Please help : problem with retrieving window handles

[jim mcnamara]

The standard way to create a process, then wait for it is called shell and wait. Use CreateProcess and WaitForSingleObject.
Not shell & EnumWindows.

Here is the MSDN tutorial:

http://support.microsoft.com/default...;EN-US;q129796

[DWillems]

Works fine if you know the executable on beforehand.

How do I proceed if I only have a path and a filename ?

(i.e. "c:\ExDir\something.doc")

[jim mcnamara]

ShellExecuteEx returns a pid that you can use in WaitForSingleObject.

Const SEE_MASK_INVOKEIDLIST = &HC
Const SEE_MASK_NOCLOSEPROCESS = &H40
Const SEE_MASK_FLAG_NO_UI = &H400
Private Type SHELLEXECUTEINFO
    cbSize As Long
    fMask As Long
    hwnd As Long
    lpVerb As String
    lpFile As String
    lpParameters As String
    lpDirectory As String
    nShow As Long
    hInstApp As Long
    lpIDList As Long
    lpClass As String
    hkeyClass As Long
    dwHotKey As Long
    hIcon As Long
    hProcess As Long
End Type
Private Declare Function ShellExecuteEx Lib "shell32.dll" Alias "ShellExecuteEx" (SEI As SHELLEXECUTEINFO) As Long
Sub ShowProps(FileName As String, OwnerhWnd As Long)
    Dim SEI As SHELLEXECUTEINFO
    Dim r As Long
    With SEI
        'Set the structure's size
        .cbSize = Len(SEI)
        'Seet the mask
        .fMask = SEE_MASK_NOCLOSEPROCESS Or _
         SEE_MASK_INVOKEIDLIST Or SEE_MASK_FLAG_NO_UI
        'Set the owner window
        .hwnd = OwnerhWnd
        'Show the properties
        .lpVerb = "properties"
        'Set the filename
        .lpFile = FileName
        .lpParameters = vbNullChar
        .lpDirectory = vbNullChar
        .nShow = 0
        .hInstApp = 0
        .lpIDList = 0
    End With
    r = ShellExecuteEX(SEI)
End Sub
Private Sub Form_Load()
    'KPD-Team 1999
    'URL: http://www.allapi.net/
    'E-Mail: [email protected]
    ShowProps "c:\config.sys", Me.hwnd
End Sub

[jim mcnamara]

Duh.

PS: that's not quite true - you CAN get the executable associated with any file, if an association exists.

See:

http://www.mvps.org/vbnet/code/syste...executable.htm

[DWillems]

Have to go through all the documentation but I'm sure I'll come up with something.

Thanks a great deal !