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（1）windows写日志系统
1 void writeDebugEventLog(TCHAR* pszMessage, WORD wType) 2 { 3 //#ifdef _DEBUG 4 5 HANDLE hEventSource = NULL; 6 const TCHAR* lpszStrings[2] = { NULL, NULL }; 7 8 hEventSource = RegisterEventSourceW(NULL, L"DeviceMonitorService"); 9 if (hEventSource) 10 { 11 lpszStrings[0] = _T("DeviceMonitorService"); 12 lpszStrings[1] = pszMessage; 13 14 ReportEvent(hEventSource, // Event log handle 15 wType, // Event type 16 0, // Event category 17 0, // Event identifier 18 NULL, // No security identifier 19 2, // Size of lpszStrings array 20 0, // No binary data 21 lpszStrings, // Array of strings 22 NULL // No binary data 23 ); 24 25 DeregisterEventSource(hEventSource); 26 } 27 //#else 28 //#endif // DEBUG 29 }
（2）将字符串写入数组
1 TCHAR szMessage[260]; 2 ZeroMemory(szMessage, ARRAYSIZE(szMessage)); 3 StringCchPrintf(szMessage, ARRAYSIZE(szMessage), 4 _T("[Win32Project1 ]monitorId %s , attached DisplayDevice.DeviceID : %s IsLocalMonitor %d"), monitorId, aDisplayDevice.DeviceID, IsLocalMonitor); 5 writeDebugEventLog(szMessage, EVENTLOG_ERROR_TYPE);
注：
StringCchPrintf function (Strsafe.h)
Writes formatted data to the specified string. The size of the destination buffer is provided to the function to ensure that it does not write past the end of this buffer.
StringCchPrintf is a replacement for the following functions:
sprintf (<stdio.h>)
(3)TCHAR与string转换（std::string为char类型的字符集合）
1 string TCHAR2STRING(TCHAR* STR){ 2 int iLen = WideCharToMultiByte(CP_ACP, 0, STR, -1, NULL, 0, NULL, NULL); 3 char* chRtn = new char[iLen*sizeof(char)]; 4 WideCharToMultiByte(CP_ACP, 0, STR, -1, chRtn, iLen, NULL, NULL); 5 std::string str(chRtn); 6 return str; 7 }
注：
string
Header: <string> ——c++ 标准库头文件
Namespace: std
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A type that describes a specialization of the template class basic_string with elements of type char as a string. |
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A type that describes a specialization of the template class basic_string with elements of type wchar_t as a wstring. |
char字符串转换成Unicode 字符串
1 LPWSTR pwszOut = NULL; 2 if (value != NULL) 3 { 4 // // Double NULL Termination 5 int nOutputStrLen = MultiByteToWideChar(CP_ACP, 0, value, -1, NULL, 0);//获取char字符串的长度，包括空串的长度 6 pwszOut = new TCHAR[nOutputStrLen]; 7 8 memset(pwszOut, 0, nOutputStrLen); 9 MultiByteToWideChar(CP_ACP, 0, value, -1, pwszOut, nOutputStrLen); 10 }
（4）各类数据结构
typedef _Null_terminated_ CONST WCHAR *LPCWSTR, *PCWSTR;
typedef LPCWSTR PCTSTR, LPCTSTR; ——winnt.h
（5）各类字符串函数
strrchr, wcsrchr，_tcsrchr——
Header: stdio.h, string.h.
Scan a string for the last occurrence of a character.
example: (_tcsrchr(cmd, _T(‘\\‘)))[1] = 0;
lstrcat—— include Windows.h
Appends one string to another.
#include <memory.h> #include <stdio.h>
void *memset( void *dest, int c, size_t count );
| Routine | Required Header | Compatibility |
| memset | <memory.h> or <string.h> | ANSI, Win 95, Win NT |
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原文地址：http://www.cnblogs.com/meizixiong/p/4476761.html
