win32多线程-新版本MtVerify.h

api调用错误诊断宏，对GetLastError()函数的封装，并解析错误

从网上找的版本并进行了部分修改

  /*    * MtVerify.h    *    * The function PrintError() is marked as __inline so that it can be    * included from one or more C or C++ files without multiple definition    * errors.     * To use the PrintError() in an application, it should be taken out,    * placed in its own source file, and the "__inline" declaration removed    * so the function will be globally available.    * [Modified by thinkhy 10/01/04] ...    * [Modified by thinkhy 10/01/07] Added function Myverify.    */    #pragma comment( lib,   "USER32"   )  #define MTASSERT(a) _ASSERTE(a)  #ifdef _DEBUG  #define MTVERIFY(a) if(!(a)) MyVerify(a,_T(#a))  #else  #define MTVERIFY(f)          ((  void  )(f))  #endif  __inline  void   PrintError(LPTSTR filename,  int   lineno, LPTSTR lpszFunc, DWORD errnum){LPTSTR lpBuffer;TCHAR errbuf[ 256  ];#ifdef _WINDOWS  TCHAR modulename[MAX_PATH];#else    // _WINDOWS  DWORD numread;#endif    // _WINDOWS  FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER| FORMAT_MESSAGE_FROM_SYSTEM,NULL  ,errnum,LANG_NEUTRAL,(LPTSTR)&lpBuffer,  // 这个参数很变态! [Commented by thinkhy 10/01/04]  0  ,NULL   );wsprintf(errbuf, _T("Failed at Line: %d in File: %s \r\n\nFunction: %s \r\n\nReason: %s"),lineno, filename, lpszFunc, lpBuffer);#ifndef _WINDOWS  WriteFile(GetStdHandle(STD_ERROR_HANDLE), errbuf, strlen(errbuf), &numread, FALSE );Sleep( 3000  );#else  GetModuleFileName( NULL  , modulename, MAX_PATH);MessageBox( NULL  , errbuf, modulename, MB_ICONWARNING|MB_OK|MB_TASKMODAL|MB_SETFOREGROUND);#endif  // exit(EXIT_FAILURE);  return  ;}__inline BOOL MyVerify(BOOL what,LPTSTR lpszFunc){#ifdef _DEBUG  if   (!what)PrintError(_T( __FILE__  ),  __LINE__  , lpszFunc,GetLastError());#endif  return   what;} 

 

WriteFile(GetStdHandle(STD_ERROR_HANDLE), errbuf, strlen(errbuf), &numread, FALSE ); //错误输出到console窗口

GetStdHandle它用于从一个特定的标准设备（标准输入、标准输出或标准错误）中取得一个句柄。

事例如下：

#include <windows.h>//GetStdHandle和SetConsoleTextAttribute在头文件windows.h中#include <iostream>using namespace std;void SetColor(unsigned short ForeColor=3,unsigned short BackGroundColor=0)//给参数默认值，使它//可以接受0/1/2个参数{HANDLE hCon = GetStdHandle(STD_OUTPUT_HANDLE); //本例以输出为例SetConsoleTextAttribute(hCon,ForeColor|BackGroundColor);}int main(){SetColor();std::cout<<"Hello world!"<<endl;SetColor(40,30);std::cout<<"Hello world!"<<endl;std::cout<<"Hello world!"<<endl;getchar();return 0;}