/// <summary>Gets the device number for a specified handle</summary>
/// <param name="deviceHandle">Device handle</param>
/// <returns>Device number</returns>
static uint GetDeviceNumber(SafeFileHandle deviceHandle)
{
var sdn = new StorageDeviceNumber
{
deviceNumber = -1
};
uint k = 0;
if (!Extern.DeviceIoControlGetDeviceNumber(deviceHandle, WindowsIoctl.IoctlStorageGetDeviceNumber,
IntPtr.Zero, 0, ref sdn, (uint)Marshal.SizeOf(sdn), ref k,
IntPtr.Zero))
{
return(uint.MaxValue);
}
return((uint)sdn.deviceNumber);
}
internal static extern bool DeviceIoControlGetDeviceNumber(SafeFileHandle hDevice, WindowsIoctl ioControlCode,
IntPtr inBuffer, uint nInBufferSize,
ref StorageDeviceNumber outBuffer,
uint nOutBufferSize, ref uint pBytesReturned,
IntPtr overlapped);