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This project is made with MS Visual C++ Version 6.0 with the latest Service Pack and tested on Windows NT 4.0 Workstation SP4.
For a Setup I'm writing I wanted to know how much diskspace would be needed for the setup of some components. My Setup installs Internet Explorer, Microsoft Data Access Components, DAO and the Windows 95 Euro Update (nice isn't it? I say now when it's almost done <g>).
BOOL GetDiskFreeSpaceEx(LPCTSTR lpDirectoryName, // pointer to the directory name PULARGE_INTEGER lpFreeBytesAvailableToCaller, // receives the number of bytes on disk // available to the caller PULARGE_INTEGER lpTotalNumberOfBytes // receives the number of bytes on disk PULARGE_INTEGER lpTotalNumberOfFreeBytes // receives the free bytes on disk)
The function can take an UNC name as a parameter for the directory name and works under 95/98/NT/2000. I wrote a simple dialog app around it. You can see what is does by looking at the main dialog window:
You can also run two instances of this program, select different drives and then watch the values change as you move data from one disk to another. Changes of UNC and Update are immediate when you move the cursor off. After clicking on Start (which then becomes Stop) the window flashes every time the values on the screen are updated.
The program demonstrates the use of 64-bit integers so you can watch how much space you have left on your new terabyte gigadisk, timerfunctions, registry access and Z-Order manipulation. The code is pretty much self-explaining, perhaps nice for a fresh starter with MSVC++, so have fun with it!