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Internet constants value
Message
De
01/06/2002 17:09:02
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Fonctions Windows API
Divers
Thread ID:
00663784
Message ID:
00663816
Vues:
16
>>>
>>>#DEFINE INTERNET_FLAG_RELOAD 0x80000000
>>
>>this really should be recast explicitly if you're passing it as an INTEGER using BITOR(); VFP handles this as a positive value, while the API type INTEGER or LONG is actually a signed 32-bit integer, so that 0x80000000 is the maximum possible integer positive value. You can accomplish this by wrapping the INTEGER expression with BITOR(0,your potentially integer value) as follows:
>>
>>nMyIntegerArg = BITOR(INTERNET_FLAG_RELOAD + INTERNET_FLAG_NO_CACHE_WRITE,0)
>
>Hi Ed,
>
>Isn't 0x7FFFFFFF the max positive value in signed 32-bit integer?

Yep. And 0xFFFFFFFF (-1) is 0x80000000 + 0x7FFFFFFF. Go figure...
EMail: EdR@edrauh.com
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