Findwindow

Hi,
I'm trying to close a powerpoint presentation from within BlitzPlus. It seems quite easy using Findwindow and Sendmessage. My problem is that Findwindow requires both a classname and title/windowname. like:

hndl = findwindow ("PP11FrameClass", "Microsoft Powerpoint - [presentation1]" )

Now I would like blitz to close any powerpoint presentation without specifying a title/presentation. But:

hndl = findwindow ("PP11FrameClass", 0)

or

hndl = findwindow ("PP11FrameClass", "" )

returns 0 [no handle].
Does anyone know how to tackle this?

You are not passing a null value.
Use the decls below to do it.

.lib "user32.dll"
FindWindow%( class$,Text$ ):"FindWindowA"
FindWindowByClassname%( class$,thenull% ):"FindWindowA" 

Excellent - it does the job!