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Thank you! Thank you! I just finished reading this document, which was part of a link in the recent Buzz newsletter. I have printed it for others to read, especially those skeptical on the powers of Access and its capabilities.

Darren D.

 

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Find the Size of a Drive

Provided by: Michelle Swann VP, Professional Solutions Group

Here's some code to find the size of logical drives using Visual Studio .NET:

string[] tempString = Directory.GetLogicalDrives();

foreach(string tempDrive in tempString)

{

  cmbDrives.Items.Add(tempDrive);

}

cmbDrives.Selectstring[] tempString = Directory.GetLogicalDrives();

foreach(string tempDrive in tempString)

{

  cmbDrives.Items.Add(tempDrive);

}

cmbDrives.SelectedIndex=0;

 

public sealed class DriveInfo

{

 

  [DllImport("kernel32.dll", EntryPoint="GetDiskFreeSpaceExA")]

  private static extern long GetDiskFreeSpaceEx(string lpDirectoryName,

  out long lpFreeBytesAvailableToCaller,

  out long lpTotalNumberOfBytes,

  out long lpTotalNumberOfFreeBytes);

 

  public static long GetInfo(string drive, out long available, out long total, out long free)

  {

    return GetDiskFreeSpaceEx(drive,out available,out total,out free);

  }

 

  public static DriveInfoSystem GetInfo(string drive)

  {

    long result, available, total, free;

    result = GetDiskFreeSpaceEx(drive, out available, out total, out free);

    return new DriveInfoSystem(drive,result,available,total,free);

  }

 

}

 

public struct DriveInfoSystem

{

  public readonly string Drive;

  public readonly long Result;

  public readonly long Available;

  public readonly long Total;

  public readonly long Free;

 

  public DriveInfoSystem(string drive, long result, long available, long total, long free)

  {

    this.Drive = drive;

    this.Result = result;

    this.Available = available;

    this.Total = total;

    this.Free = free;

  }

}

 

Call:DriveInfoSystem info = DriveInfo.GetInfo("c:")

edIndex=0;

 

public sealed class DriveInfo

{

 

  [DllImport("kernel32.dll", EntryPoint="GetDiskFreeSpaceExA")]

  private static extern long GetDiskFreeSpaceEx(string lpDirectoryName,

  out long lpFreeBytesAvailableToCaller,

  out long lpTotalNumberOfBytes,

  out long lpTotalNumberOfFreeBytes);

 

  public static long GetInfo(string drive, out long available, out long total, out long free)

  {

    return GetDiskFreeSpaceEx(drive,out available,out total,out free);

  }

 

  public static DriveInfoSystem GetInfo(string drive)

  {

    long result, available, total, free;

    result = GetDiskFreeSpaceEx(drive, out available, out total, out free);

    return new DriveInfoSystem(drive,result,available,total,free);

  }

 

}

 

public struct DriveInfoSystem

{

  public readonly string Drive;

  public readonly long Result;

  public readonly long Available;

  public readonly long Total;

  public readonly long Free;

 

  public DriveInfoSystem(string drive, long result, long available, long total, long free)

  {

    this.Drive = drive;

    this.Result = result;

    this.Available = available;

    this.Total = total;

    this.Free = free;

  }

}

 

Call:DriveInfoSystem info = DriveInfo.GetInfo("c:")

 


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