UNICODE_STRING怎么用？

UNICODE_STRING FileName;

我想比较一下
if(filename=="d:\abc\test.txt")

怎么比较？谢谢

搞定了
不过挺土
UNICODE_STRING temp;
RtlInitUnicodeString(&temp,L"d:\\back\\1.txt");
RtlCompareUnicodeString(&temp,&(pIrpStack->FileObject->FileName),TRUE);

不行啊
我修改filespy

想在spycreate函数里判断如果是我要监视的文件就....

pIrpStack = IoGetCurrentIrpStackLocation(Irp);
RtlCompareString(pIrpStack->FileObject->FileName.Buffer,L("d:\\back\\1.txt"),0);


编译在rtlcpmparestring这里出现错误
filespy.c(703) : error C2220: warning treated as error - no object file generated
filespy.c(703) : error C4047: 'function' : 'const char *' differs in levels of indirection from 'unsigned short ** '
filespy.c(703) : error C4024: 'RtlInitString' : different types for formal and actual parameter 2
filespy.c(704) : error C4133: 'function' : incompatible types - from 'unsigned short *' to 'struct _STRING *'
filespy.c(704) : error C4013: 'L' undefined; assuming extern returning int
filespy.c(704) : error C4047: 'function' : 'struct _STRING *' differs in levels of indirection from 'int '
filespy.c(704) : error C4024: 'RtlCompareString' : different types for formal and actual parameter 2

如果在PASSIVE_LEVEL级别，应该用这个
RtlCompareString(registryPath->Buffer,L("d:abctest.txt"),0);