Passing pointers in EnumWindows -- dotnet sdk

Jim Brent
6/4/2005 12:59:10 PM

I know this must be easier than I am making it but...

The EnumWindows api call requires that a pointer to the function that will
handle the values returned be passed as the second paramater. The AddressOf
operator won't produce the required "long" datatype. How do I get the
correct pointer for my handling function to put into the call?

Public Declare Function EnumWindows Lib "user32" (ByVal lpEnumFunc As
Long, ByVal lParam As Long) As Long

retval = EnumWindows((Pointer to EnumWinProc), 0)

--
Jim Brent

Jim Brent
6/13/2005 4:04:02 PM

Thanks, I eventually found the examples and was able to make it work.

[quoted text, click to view]

Mattias Sjögren
6/13/2005 10:06:08 PM

Jim,

[quoted text, click to view]

You make the parameter type a delegate with the correct signature. If
you seach the .NET framework SDK documentation for "EnumWindows"
you'll find and example.

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com

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dotnet sdk : Passing pointers in EnumWindows