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How VFP handles Binary data?
Message
General information
Forum:
Visual FoxPro
Category:
COM/DCOM and OLE Automation
Miscellaneous
Thread ID:
00531339
Message ID:
00531657
Views:
25
>
>cBinary = Thisform.OleOCX.GetFingerPrint()
>Replace mydbffile.memofield With cBinary
>
>Above code successfully save the contents of the cBinary variable to a memo field (memo binary) but I don't know if it is a valid data.
>
I may be sharing my ignorance, but it seems that a click (or two) on the memo field containg binary data should present the data in its intended format. I have used APPEND GENERAL to stash worksheets in memo (or general?) fields. When I clicked on the memo field, OLE (i think) opened the sheet in the application format.

Is there a difference between APPEND GENERAL and REPLACE as they relate to managing binary data?

>cBinaryCheck = Thisform.OleOCX.CheckFingerPrint(mydbffile.memofield)
>
>it always returns .T. even if the saved fingerprint was of my Thumb finger whereas scanned one was my index finger.
>
>>There maybe a GETCHUNK method available, check your control documentation.
I am looking for a URL regarding GETCHUNK. It was offered a a solution to to move binary data, through ADO, and stash it in a memo field.
Imagination is more important than knowledge
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