Cstring转换成char*函数

char * CStringtochar(CString str) { char *ptr; #ifdef _UNICODE LONG len; len = WideCharToMultiByte(CP_ACP, 0, str, -1, NULL, 0, NULL, NULL); ptr = new char [len+1]; memset(ptr,0,len + 1); WideCharToMultiByte(CP_ACP, 0, str, -1, ptr, len + 1, NULL, NULL); #else ptr = new char [str.GetAllocLength()+1]; sprintf(ptr,_T("%s"),str); #endif return ptr; }