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FindWindow() VFP from Word
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To
23/09/1998 04:50:48
Cetin Basoz
Engineerica Inc.
Izmir, Turkey
General information
Forum:
Visual FoxPro
Category:
Windows API functions
Miscellaneous
Thread ID:
00139394
Message ID:
00139758
Views:
83
>Klas,
>George is right. FindWindow gets 2 parameters, class and title. If any of the parameters you pass null, everything matches :
>
>FindWindow(Class,Title) && Check both match
>FindWindow(0,Title) && Any class match
>FindWindow(Class,0) && Any title match
>FindWindow(0,0) && Any class and title match
>
* Fox code
>function fWin
>lParameters tuClass, tuWinTitle
>DECLARE integer FindWindow in WIN32API string cClass, string cWinName
>hWnd = FindWindow(tuClass,tuWintitle)
>clear dlls
>return hWNd
>
>? fwin("Fox_4000001","Microsoft Visual FoxPro") && 824
>? fwin("Fox_4000001",0)                         && 832
>? fwin(0,"Microsoft Visual FoxPro")             && 824
>? fwin(0,0)                                     && 904
>
>Here interesting thing with only one instance of VFP (development), fwin("Fox_4000001",0) and fwin(0,"Microsoft Visual FoxPro") return different values (where is the main fox window ?). And many VFP window with same title return only first.
>
>I would also test it for you in word if I knew how to write and test that in word.
Hi Cetin,

I cannot emphasize enough that it's a terrible idea to use window class names when trying to use FindWindow(). As I mentioned, without something like Spy++, it can be very difficult to accurately determine what's what. Further, the above samples will fail if the class name is passed and the version of VFP that's running is 6.0. The main window class name for that version is VFP66400000.

Whenever VFP is started there are no fewer than 10 windows associated with it. One these, BTW, has a class name different from either of the two mentioned above, and different between versions.
George

Ubi caritas et amor, deus ibi est
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