一个奇怪的问题。

我的驱动入口函数是这样写的：
NTSTATUS DriverEntry( IN PDRIVER_OBJECT DriverObject,IN PUNICODE_STRING RegistryPath)
{
ULONG i;
NTSTATUS                ntStatus;
    WCHAR                   deviceNameBuffer[]  = L\"\\\\Device\\\\Processhide\";
    UNICODE_STRING          deviceNameUnicodeString;
    WCHAR                   deviceLinkBuffer[]  = L\"\\\\DosDevices\\\\Processhide\";
    UNICODE_STRING          deviceLinkUnicodeString;
RtlInitUnicodeString (&deviceNameUnicodeString,deviceNameBuffer );
    RtlInitUnicodeString (&deviceLinkUnicodeString,deviceLinkBuffer );
DriverObject->DriverUnload = DirUnLoad;
    ntStatus = IoCreateDevice (DriverObject,0,&deviceNameUnicodeString,FILE_DEVICE_PROCESSHIDE,0,TRUE,&ControlDeviceObject );
if (NT_SUCCESS(ntStatus))
{
ntStatus = IoCreateSymbolicLink (&deviceLinkUnicodeString,&deviceNameUnicodeString );
DbgPrint((\"进入循环分发\\n\"));
for(i=0;i<=IRP_MJ_MAXIMUM_FUNCTION;i++)
{
DriverObject->MajorFunction = DispatchFun;//分发函数
}
DbgPrint((\"退出循环分发\\n\"));
}
if (!NT_SUCCESS(ntStatus))
{
        DbgPrint((\"创建驱动时失败!\\n\"));
if( ControlDeviceObject ) IoDeleteDevice( ControlDeviceObject );
        IoDeleteSymbolicLink( &deviceLinkUnicodeString );
        return ntStatus;
}
return STATUS_SUCCESS;
}

我的分发例程是这样写的
NTSTATUS DispatchFun(IN IN PDEVICE_OBJECT DeviceObject,IN PIRP  Irp)
{
NTSTATUS             rc;
PIO_STACK_LOCATION   IrpStack;
PIO_STACK_LOCATION   NextIrpStack;
//定义ANSI的文件名
ANSI_STRING          ansiFileName;
//定义UNI的文件名
UNICODE_STRING       uniFileName;
//得到当前的I/O栈单元
IrpStack=IoGetCurrentIrpStackLocation(Irp);
DbgPrint(\"分发例程\\n\");
//分发IRP
switch (IrpStack->MajorFunction)
{
case IRP_MJ_CREATE:
DbgPrint(\"创建\\n\");
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0L;

break;

case IRP_MJ_CLOSE:
DbgPrint(\"关闭\\n\");
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0L;

break;
case IRP_MJ_WRITE:
DbgPrint(\"写操作\\n\");
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0L;

break;

case IRP_MJ_DIRECTORY_CONTROL:
if(IrpStack->MinorFunction == IRP_MN_QUERY_DIRECTORY)
{
DbgPrint(\"查询目录\\n\");
}

}
}
可是为什么当我打开文件夹的时候在DEBUGVIEW上没有显示“查询目录”的消息字样呢？？？
是不是我那里写错了呢？？我是一个菜鸟请高手们帮助！！！！谢谢！！！