RtlAppendUnicodeStringToString有什么用？

a = 10;
RtlInitUnicodeString(&deviceName, L\"AA\");
RtlInitUnicodeString(&itos,L\"BB\");
RtlIntegerToUnicodeString(a,10,&itos);

status = RtlAppendUnicodeStringToString(&deviceName,&itos);
操作不成功 status == STATUS_BUFFER_TOO_SMALL.

结果想成为“AA10”

不看书！

UNICODE_STRING devName;
WCHAR devNameBuffer[MAX_NAME_LEN];

devName.Buffer=devNameBuffer;
devName.MaximumLength=MAX_NAME_LEN;
devName.Length=0;

RtlAppendUnicodeToString(...);