C/C++如何在动态库中打印调试信息到控制台中显示

int dllPrintf(char *fmt, ...) { //不定参数格式化 va_list argptr; va_start(argptr, fmt); char buffer[512] = {0}; int cnt = vsprintf(buffer, fmt, argptr); va_end(argptr); //创建控制台窗口 static HANDLE gHConsole = INVALID_HANDLE_VALUE; if (INVALID_HANDLE_VALUE == gHConsole) { AllocConsole(); gHConsole = GetStdHandle(STD_OUTPUT_HANDLE); } //打印到指定的控制台窗口 DWORD dw; WriteConsole(gHConsole, buffer, strlen(buffer), &dw, NULL); return(cnt); }

 https://my.oschina.net/u/3489228/blog/1189230