UUID

以下说明的仅限windows平台下的定义

1 简要说明

GUID UUID CLSID IID是同一个结构体, 区别只是对应的字符串格式不同

UUID : "B8AAE3C3-7134-4BE9-90FF-1CD555A1417D"

GUID : "{B8AAE3C3-7134-4BE9-90FF-1CD555A1417D}"

CLSID: "{B8AAE3C3-7134-4BE9-90FF-1CD555A1417D}"

IID: "{B8AAE3C3-7134-4BE9-90FF-1CD555A1417D}"

2 结构体

typedef struct _GUID {
unsigned long Data1;
unsigned short Data2;
unsigned short Data3;
unsigned char Data4[ 8 ];
} GUID;

typedef GUID CLSID;

typedef GUID IID;

typedef GUID UUID;

3 相关函数

构造GUID

　　ExUuidCreate 内核层

CoCreateGuid 用户层

string与uuid互转

UuidFromString

UuidToString

guid 转string

StringFromGUID2

CLSID与string互转

CLSIDFromString

StringFromCLSID

IID与string互转

IIDFromString

StringFromIID

4 部分代码

    const GUID hehe ={ 0x2f4d1f7a, 0xf01, 0x45c8,{ 0x93, 0x4a, 0xca, 0xa0, 0x83, 0x6b, 0x7b, 0x94 } };

    RPC_WSTR buffer0 = NULL;
    RPC_STATUS ret0 = UuidToString(&hehe, &buffer0);
    if (ret0 == RPC_S_OK)
    {
        wprintf(L"uuid: %ws\n",(wchar_t*)buffer0);
        RpcStringFree(&buffer0);
    }
    WCHAR buffer[MAX_PATH] = {0};
    int ret =StringFromGUID2(hehe, buffer, MAX_PATH);
    if (ret > 0)
    {
        wprintf(L"guid: %ws\n", buffer);
    }

    LPOLESTR buffer1 = NULL;
    HRESULT ret1 = StringFromCLSID(hehe, &buffer1);
    if (ret1 == S_OK)
    {
        wprintf(L"clsid: %ws\n", buffer1);
        CoTaskMemFree(buffer1);
    }

    StringFromIID(hehe, &buffer1);
    if (ret1 == S_OK)
    {
        wprintf(L"IID: %ws\n", buffer1);
        CoTaskMemFree(buffer1);
    }