Fehler bei GetVolumeInformation

[Roland Bies]

Hallo,

ich möchte mit C++ Builder und dem folgenden Code Informationen über meine Festplatte herausbekommen, aber irgendwie funktioniert das nicht. Kann mir irgendjemand helfen.

Der Code lautet:

#include <winbase.h>

LPTSTR VolumeNameBuffer=0; // address of name of the volume
DWORD VolumeNameSize; // length of lpVolumeNameBuffer
LPDWORD VolumeSerialNumber=0; // address of volume serial number
LPDWORD MaximumComponentLength=0; // address of system's maximum filename length
LPDWORD FileSystemFlags=0; // address of file system flags
LPTSTR FileSystemNameBuffer=0; // address of name of file system
DWORD FileSystemNameSize; // length of lpFileSystemNameBuffer

BOOL b=GetVolumeInformation("C:\\",VolumeNameBuffer,Vol umeNameSize,VolumeSerialNumber,MaximumComponentLen gth,FileSystemFlags,FileSystemNameBuffer,FileSyste mNameSize);
ListBox1->Items->Add((int)b);
ListBox1->Items->Add(VolumeNameBuffer);
ListBox1->Items->Add((AnsiString)VolumeNameBuffer);
ListBox1->Items->Add((AnsiString)(LPTSTR)VolumeNameBuffer);
ListBox1->Items->Add((AnsiString)(int)(DWORD)VolumeNameSize);
ListBox1->Items->Add((AnsiString)(int)(DWORD)VolumeSerialNumber) ;
ListBox1->Items->Add((int)FileSystemNameBuffer);
ListBox1->Items->Add((int)(DWORD)FileSystemNameSize);

Vielen Dank im Voraus Roland Bies, [email protected]

[Thorsten Lepke]

Hi,

<pre>
char VolumeNameBuffer[MAX_PATH]; // address of name of the volume
DWORD VolumeNameSize = MAX_PATH; // length of lpVolumeNameBuffer
DWORD VolumeSerialNumber = 0; // address of volume serial number
DWORD MaximumComponentLength=0; // address of system's maximum filename
//length
DWORD FileSystemFlags=0; // address of file system flags
char FileSystemNameBuffer[MAX_PATH]; // address of name of file system
DWORD FileSystemNameSize = MAX_PATH; // length of lpFileSystemNameBuffer

bool b=GetVolumeInformation("C:\\",VolumeNameBuffer,Vol umeNameSize,&VolumeSerialNumber
,&MaximumComponentLength,&FileSystemFlags,
FileSystemNameBuffer,FileSystemNameSize);

ListBox1->Items->Add(VolumeNameBuffer);
ListBox1->Items->Add(VolumeSerialNumber);
ListBox1->Items->Add(MaximumComponentLength);
ListBox1->Items->Add(FileSystemNameBuffer);
</pre>

Gruß Thorste