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GetDiskFreeSpaceEx And Terrabyte

Hi,

I have a function where I check the available diskspace before start to save. It works well but if I query our 9 Terrabyte Networkdrive I got allways the message "Not enough space". Here I use:
      float theSize = theApp.appHelpers.PixGetFreeDiskSpace(oPathInfo.GetDrive());
      if(theSize<4482){ //Space in MB for a DVD Image
       //Error
       MessageBox(L"Not Enough Space");
       return FALSE;
      }
With the function in the code area. What do I worng?

Ocrana

double CPixbyteHelpers::PixGetFreeDiskSpace(CString tDrive)
{
	ULARGE_INTEGER uliFreeBytesAvailable,uliTotalNumberOfBytes,uliTotalNumberOfFreeBytes;
	uliFreeBytesAvailable.QuadPart = 0L;
	uliTotalNumberOfBytes.QuadPart = 0L;
	uliTotalNumberOfFreeBytes.QuadPart = 0L;

	if (!GetDiskFreeSpaceEx(tDrive,&uliFreeBytesAvailable,&uliTotalNumberOfBytes,&uliTotalNumberOfFreeBytes))
	{
		return -1; // could not get info.
	}

	//return megabytes free.
	return (uliTotalNumberOfFreeBytes.QuadPart/1024.0/1024.0);
}

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jhshukla

well, you could start by figuring out what uliTotalNumberOfFreeBytes.QuadPart is.

other suggestion is to call GetLastError http://msdn.microsoft.com/en-us/library/ms679360(VS.85).aspx

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DonConsolio

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Ocrana

ASKER

It was a UNC problem. Thanks for the hint.