C / C++ / MFC

Jusef Marzbany wrote:

No! Because it has not introduced any function or algorithm,

Jusef Marzbany wrote:

I think it's only about NTFS!

Client	  Requires Windows Vista, Windows XP, or Windows 2000 Professional.
Server	  Requires Windows Server 2008, Windows Server 2003, or Windows 2000 Server.
<pre>

logicon wrote:

Now I want to use GetVolumeInformation in this dll. But I don't have any idea how to call it, what include are required etc

#include <stdio.h>
#include <windows.h>

extern "C"
{
	__declspec(dllexport) void DisplayHelloFromDLL()
	{
		char buffVN[512];
		char buffSN[512];
		char buffMCL[512];
		char buffFSN[512];
		char *v = "C:\\";

		GetVolumeInformation(v, buffVN, 512, buffSN, buffMCL, 0x00000002, buffFSN, 512);

		printf ("Serial Number [%s]\n", buffSN);
		printf ("Hello from DLL !\n");
	}

}
</windows.h></stdio.h>

logicon wrote:

cannot convert parameter 1 from 'char *' to 'LPCWSTR'

Mark Salsbery
Microsoft MVP - Visual C++

#include <stdio.h>
#include <windows.h>
#include <tchar.h>

extern "C"
{
	__declspec(dllexport) void DisplayHelloFromDLL()
	{

		const TCHAR lpctstrRootPathName[] = _T("C:\\");
		
		TCHAR tcVolumeName[MAX_PATH + 1];

		DWORD dwVolumeSerialNumber;
		DWORD dwMaximumComponentLength;
		DWORD dwFileSystemFlags;

		TCHAR tcFileSystemNameBuffer[MAX_PATH + 1];

		GetVolumeInformation(lpctstrRootPathName, 
							 tcVolumeName, 
							 MAX_PATH, 
							 &dwVolumeSerialNumber, 
							 &dwMaximumComponentLength,
							 &dwFileSystemFlags,
							 tcFileSystemNameBuffer,
							 MAX_PATH);

		printf ("Serial Number [%u]\n", dwVolumeSerialNumber);
	}

}

[DllImport("kernel32.dll")]
public static extern int GetDiskFreeSpaceEx(string rootPathName,
	ref long lpFreeBytesAvailable, ref long lpTotalNumberOfBytes, 
	ref long lpTotalNumberOfFreeBytes);

Luc Pattyn [Forum Guidelines] [My Articles]

---

Fixturized forever.

---

int getGCD( int x, int y )
{
    if (0 == y)
        return x;
    else
        return getGCD(y, x % y);
}

<br />
int x = 0;<br />
int y = 0;<br />
int A = 0;<br />
int B = 0;<br />
int R = 0;<br />
<br />
Read x and y<br />
<br />
if (x >= y)<br />
{<br />
  A = x;<br />
  B = y;<br />
}<br />
else<br />
{<br />
  A = y;<br />
  B = x;<br />
}<br />
<br />
R = (A % B);<br />
<br />
while (R != 0)<br />
{<br />
  A = B;<br />
  B = R;<br />
  R = (A % B);<br />
}<br />
<br />
Report "the GCD of x and y is B"<br />