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02/08/2001 13:54:41
General information
Forum:
Visual FoxPro
Category:
Forms & Form designer
Miscellaneous
Thread ID:
00538916
Message ID:
00656395
Views:
27
Just curious, did it help?

>gosh, I hope you did not come up w/this off the top of you head, in just a couple of minutes! (:0)
>thanks Celtin, I'll give it a try now.
>I guess I will have to pay more attention to this kind of things. Is the first time I have a corrupted form, and of course, it happens now that I need to set the app in the next 7 min.
>
>
>
>>
>>Edgar,
>>I was just leaving. I don't have time for details, if it had some garbage you could try this on a copy :
>>
fastrepair('blahblah.scx')
>>function fastrepair
>>Lparameters tcDBF
>>Local handle, lnFileSize, lnReccount, lnHeaderSize, lnRecordSize, ;
>>	lnCalculatedReccount, llHasMemo
>>handle=fopen(tcDBF,12) && Opened readwrite
>>lnFileSize = fseek(handle,0,2) && Get file size
>>* Read header info
>>With this
>>	lnReccount   = ReadBytes(handle, 4,4)
>>	lnHeaderSize = ReadBytes(handle, 8,2)
>>	lnRecordSize = ReadBytes(handle,10,2)
>>
>>	lnCalculatedReccount = floor((lnFileSize-(lnHeaderSize+1))/lnRecordSize)
>>	If lnCalculatedReccount # lnReccount && If calculated # recorded fix it
>>		WriteBytes(handle, 4,4,lnCalculatedReccount)
>>	Endif
>>Endwith
>>=fclose(handle)
>>
>>function readbytes
>>Lparameters tnHandle, tnPos, tnSize, tlLR
>>Local lcString, lnRetValue,ix
>>=fseek(tnHandle, tnPos,0) && Go to pos
>>lcString = fread(tnHandle, tnSize) && Read tnSize bytes
>>lnRetValue = 0
>>For ix=0 to tnSize-1  && Convert to a number
>>	lnRetValue = lnRetValue + asc(substr(lcString,ix+1)) * ;
>>		iif(tlLR,256^(tnSize-1-ix),256^ix)
>>Endfor
>>Return int(lnRetValue)
>>
>>function WriteBytes
>>Lparameters tnHandle, tnPos, tnSize, tnNumber, tlLR
>>Local lcString, lnLowDword, lnHighDword,ix
>>lcString=''
>>If tlLR
>>	For ix=tnSize-1 to 0 step -1
>>		lcString=lcString+chr(tnNumber/256^ix%256)
>>	Endfor
>>Else
>>	For ix=0 to tnSize-1
>>		lcString=lcString+chr(tnNumber/256^ix%256)
>>	Endfor
>>Endif
>>=fseek(tnHandle, tnPos,0) && Go to pos
>>Return fwrite(tnHandle,lcString)
>>
Cetin
If it's not broken, fix it until it is.


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