C++ 生成GUID
1
//--生成GUID的代码
2//--相关程序/微软guidgen.exe
3
4#include "stdafx.h"
5#include <objbase.h>
6#include <stdio.h>
7
8//--生成GUID
9const char* newGUID()
10
{
11
static char buf[64] = {0};
12
GUID guid;
13 if (S_OK == ::CoCreateGuid(&guid))
14 {
15 _snprintf(buf, sizeof(buf)
16 , "{%08X-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X}"
17 , guid.Data1
18 , guid.Data2
19 , guid.Data3
20 , guid.Data4[0], guid.Data4[1]
21 , guid.Data4[2], guid.Data4[3], guid.Data4[4], guid.Data4[5]
22 , guid.Data4[6], guid.Data4[7]
23 );
24
}
25 return (const char*)buf;
26
}
27
28int main(int argc, char* argv[])
29{
30 //--COM
31 CoInitialize(NULL);
32
33 printf(newGUID());
34 printf("\r\n");
35
36 //--COM
37 CoUninitialize();
38
39 return 0;
40}
41
42
//--生成GUID的代码2
//--相关程序/微软guidgen.exe3
4
#include "stdafx.h"5
#include <objbase.h>6
#include <stdio.h>7
8
//--生成GUID9
const char* newGUID()10
{
11
static char buf[64] = {0};
12
GUID guid;13
if (S_OK == ::CoCreateGuid(&guid))14
{15
_snprintf(buf, sizeof(buf)16
, "{%08X-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X}"17
, guid.Data118
, guid.Data219
, guid.Data320
, guid.Data4[0], guid.Data4[1]21
, guid.Data4[2], guid.Data4[3], guid.Data4[4], guid.Data4[5]22
, guid.Data4[6], guid.Data4[7]23
);24
}25
return (const char*)buf;26
}27
28
int main(int argc, char* argv[])29
{30
//--COM31
CoInitialize(NULL);32
33
printf(newGUID());34
printf("\r\n");35
36
//--COM37
CoUninitialize();38
39
return 0;40
}41
42
