编程获得磁盘信息
编程获得磁盘硬件信息，VC6版本
#include <windows.h>
#include <winioctl.h>
#include <stdio.h>
BOOL GetDriveGeometry(DISK_GEOMETRY *pdg)
{
HANDLE hDevice; // handle to the drive to be examined
BOOL bResult; // results flag
DWORD junk; // discard results
hDevice = CreateFile("////.//PhysicalDrive1", //
要打开的磁盘，或者使用此方式，或者使用盘符，如：
//./G
：
0, // don't need any access to the drive
FILE_SHARE_READ | FILE_SHARE_WRITE, // share mode
NULL, // default security attributes
OPEN_EXISTING, // disposition
0, // file attributes
NULL); // don't copy any file's attributes
if (hDevice == INVALID_HANDLE_VALUE) { // if we can't open the drive...
return (FALSE);
}
bResult = DeviceIoControl(hDevice, // the device we are querying
IOCTL_DISK_GET_DRIVE_GEOMETRY, // operation to perform
NULL, 0, // no input buffer, so we pass zero
pdg, sizeof(*pdg), // the output buffer
&junk, // discard the count of bytes returned
(LPOVERLAPPED) NULL); // synchronous I/O
if (!bResult) { // if IOCTL failed...
return (FALSE);
}
CloseHandle(hDevice); // we're done with the handle
return (bResult);
}
int main(int argc, char *argv[])
{
DISK_GEOMETRY pdg; // disk drive geometry structure
BOOL bResult; // generic results flag
ULONGLONG DiskSize; // holder for the size of the drive in bytes
bResult = GetDriveGeometry (&pdg);
if (bResult)
{
printf("柱面 = %I64d/n", pdg.Cylinders);
printf("Tracks per cylinder = %ld/n", (ULONG) pdg.TracksPerCylinder);
printf("Sectors per track = %ld/n", (ULONG) pdg.SectorsPerTrack);
printf("Bytes per sector = %ld/n", (ULONG) pdg.BytesPerSector);
DiskSize = pdg.Cylinders.QuadPart * (ULONG)pdg.TracksPerCylinder *
(ULONG)pdg.SectorsPerTrack * (ULONG)pdg.BytesPerSector;
printf("Disk size = %I64d (Bytes) = %I64d (Mb)/n", DiskSize,
DiskSize / (1024 * 1024));
} else {
printf ("Attempt to get drive geometry failed. Error %ld./n",
GetLastError ());
}
return ((int)bResult);
}