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Clear buffer of mouse clicks
Message
De
15/01/1999 13:25:35
 
 
À
15/01/1999 13:20:26
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00176355
Message ID:
00176606
Vues:
30
>>>>>>>>Is there a way to clear the mouse clicks from the buffer, equivalent to clear typeahead, or to limit the number of buffered clicks ??
>>>>>>>
>>>>>>>DOEVENTS should do the trick.
>>>>>>
>>>>>>Except DOEVENTS will process the mouse clicks, and not dispose of them.
>>>>>
>>>>>Hmm, I've used DOEVENTS to clear mouse clicks (users pressing buttons while processing going on) and it seems to work for me. Windows may have processed the mouse clicks, but VFP doesn't.
>>>>
>>>>This is fairly simple to test
>>>>
>>>>Place 2 buttons on a form, and in one:
>>>>
>>>>* Some query that will take about 5 seconds.
>>>>SELECT * FROM Mytable INTO CURSOR Whatever
>>>>DOEVENTS
>>>>
>>>>In the other button,
>>>>MESSAGEBOX('Howdy')
>>>>
>>>>Click the first button, and while the query is running click the second. On my machine, the messagebox still appears.
>>>
>>>VFP 5 or 6? I'm still using 5...
>>
>>Both. Have you tested like this?
>
>
>No, I have not tried your test. The "processing" I was referring to was SQLs to build a cursor for a report and running the report. When I used to return from the report, if the user had pressed the button while this was going on, the report would run again. DOEVENTS stopped that for me.

Hmm. I have never even thought of trying that; I use flags for similar situations:

Click()
IF !THISFORM.ReportAlreadyRan
REPORT FORM Whatever
THISFORM.ReportAlreadyRajn = .T.
ENDIF
Erik Moore
Clientelligence
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