public static IntPtr VirtualAlloc(int size)
{
IntPtr memoryHandle = VirtualAlloc(IntPtr.Zero, (UIntPtr)size, AllocationType.Commit, MemoryProtection.ReadWrite);
if (memoryHandle == IntPtr.Zero)
{
int lastError = Marshal.GetLastWin32Error();
Log.Error?.Out($"Не удалось выделить память: {lastError} {WinErrors.GetSystemMessage(lastError)}");
}
return(memoryHandle);
}
public static IntPtr Open()
{
IntPtr handle = CreateFile("\\\\.\\fdraw0", EFileAccess.GenericRead | EFileAccess.GenericWrite, 0, IntPtr.Zero, ECreationDisposition.OpenExisting, 0, IntPtr.Zero);
if ((int)handle == INVALID_HANDLE_VALUE)
{
int lastError = Marshal.GetLastWin32Error();
Log.Error?.Out($"Не удалось открыть драйвер: {lastError} {WinErrors.GetSystemMessage(lastError)}");
return(handle);
}
return(handle);
}
public static unsafe IntPtr Open(DataRate dataRate, Drive drive)
{
string fileName = drive == Drive.A ? "\\\\.\\fdraw0" : "\\\\.\\fdraw1";
IntPtr handle = CreateFile(fileName, EFileAccess.GenericRead | EFileAccess.GenericWrite, 0, IntPtr.Zero, ECreationDisposition.OpenExisting, 0, IntPtr.Zero);
if ((int)handle == INVALID_HANDLE_VALUE)
{
int lastError = Marshal.GetLastWin32Error();
Log.Error?.Out($"Не удалось открыть драйвер: {lastError} {WinErrors.GetSystemMessage(lastError)} {(lastError == 2 ? $"(Drive {drive}: is not installed)" : "")}");
return(handle);
}
uint dwRet;
bool r = DeviceIoControl(handle, IOCTL_FD_SET_DATA_RATE, (IntPtr)(&dataRate), sizeof(byte), IntPtr.Zero, 0, out dwRet, IntPtr.Zero);
if (!r)
{
int lastError = Marshal.GetLastWin32Error();
Log.Error?.Out($"Ошибка при установке DataRate: {lastError} {WinErrors.GetSystemMessage(lastError)}");
}
return(handle);
}