My script won't read the room taken up in C:\!

This will not read the size of C:\. or the room that is taken up in C:\. How can I make it work?

Thanks in advance, August.

Code:

 
	 HANDLE hFile = CreateFile("C:\", GENERIC_READ, FILE_SHARE_READ, NULL,
	 OPEN_EXISTING, 0, 0);
 
	 DWORD dwFileSize;
	 dwFileSize = GetFileSize(hFile, NULL);
	 char* constant;
	 wsprintf(constant,"%d",dwFileSize);
	 MessageBox(hwnd, constant, "Room taken up in C:", 0);

1. You gotta watch all those \ in your paths, remember the C quoting rules for \\ to represent a \

2. What did you expect?
Does GetFileSize even say that it works on directories, and works in an extra special way on the root directory?

Try GetLastError to help you figure out more.

> char* constant;
> wsprintf(constant,"%d",dwFileSize);
constant is just a char pointer. Unless there's something special about wsprintf() vs sprintf(), you need to make some space for the string.

Code:

	 char constant[20];
	 wsprintf(constant,"%d",dwFileSize);

And I think %d should for correctness be %lu or %ld.