resbuf

struct resbuf {                                                  
        struct resbuf *rbnext;
        short restype;
        union ads_u_val resval;
};
union ads_u_val {
    ads_real rreal;
    ads_real rpoint[3];
    short    rint;
    ACHAR    *rstring;
    __w64 long  rlname[2];
    __w64 long  mnLongPtr;  // use this instead of rlong for pointers
    long        rlong;      // a 32-bit integer value
    __int64     mnInt64;    // a 64-bit integer value
    struct ads_binary rbinary;
    unsigned char ihandle[8];
}; 

acutNewRb acutRelRb

struct resbuf * acutNewRb(
    int type);

int acutRelRb(
    struct resbuf * rb);

常見的類型有：

• RTSHORT
• RTLONG
• RTINT64
• RTREAL
• RTSTR
• RTPOINT
• RT3DPOINT

使用acutNewRb申請的resbuf，需要配對使用acutRelRb來釋放內(nèi)存空間。
對于RTSTR

resbuf* rb = acutNewRb(RTSTR);
acutNewString(_T("HelloWorld"), rb->resval.rstring);
......
acutUpdString(_T("WuHan HuaShan"), rb->resval.rstring); // acutUpdString會釋放掉前一個rb->resval.rstring指向的內(nèi)存空間，再重新申請內(nèi)存空間
......
acutRelRb(rb);

acutBuildList

struct resbuf* result = NULL;
ads_point pt1 = { 1.0, 2.0, 5.1 };
result = acutBuildList(
    RTREAL, 3.5,
    RTSTR, _T("Hello, there."),
    RT3DPOINT, pt1,
    0);
......
acutRelRb(result);