函数和 ObjectARX 应用程序检查并更改 AutoLISP 变量的值。acedGetSym()acedPutSym() 在第一个示例中,用户输入以下 AutoLISP 表达式: 命令:(setq testboole t) T 命令:(setq teststr “HELLO, WORLD”) “你好,世界” Command:(setq sset1 (ssget)) <选择集:1> 然后,以下示例代码演示如何检索符号的新值。acedGetSym() struct resbuf *rb; int rc; long sslen; rc = acedGetSym("testboole", &rb); if (rc == RTNORM && rb->restype == RTT) acutPrintf("TESTBOOLE is TRUE\n"); acutRelRb(rb); rc = acedGetSym("teststr", &rb); if (rc == RTNORM && rb->restype == RTSTR) acutPrintf("TESTSTR is %s\n", rb->resval.rstring); acutRelRb(rb); rc = acedGetSym("sset1", &rb); if (rc == RTNORM && rb->restype == RTPICKS) { rc = acedSSLength(rb->resval.rlname, &sslen); acutPrintf("SSET1 contains %lu entities\n", sslen); } acutRelRb(rb); 相反,可以创建或更改 AutoLISP 符号的绑定,如下所示:acedPutSym() ads_point pt1; pt1[X] = pt1[Y] = 1.4; pt1[Z] = 10.9923; rb = acutBuildList(RTSTR, "GREETINGS", 0); rc = acedPutSym("teststr", rb); acedPrompt("TESTSTR has been reset\n"); acutRelRb(rb); rb = acutBuildList(RTLB, RTSHORT, -1, RTSTR, "The combinations of the world", RTSTR, "are unstable by nature.", RTSHORT, 100, RT3DPOINT, pt1, RTLB, RTSTR, "He jests at scars", RTSTR, "that never felt a wound.", RTLE, RTLE, 0); rc = acedPutSym("longlist", rb); acedPrompt("LONGLIST has been created\n"); acutRelRb(rb); 要将 AutoLISP 变量设置为 nil,请进行以下赋值和函数调用: rb->restype = RTNIL; acedPutSym("var1", rb); 用户可以检索这些新值。(如示例中所示,程序应通知用户任何更改。 测试斯特已被重置。 长名单已经创建。 命令:!teststr (“问候”) 命令:!长列表 ((-1“世界的组合”“本质上是不稳定的。100 (1.4 1.4 10.9923) (“他对伤疤开玩笑”“从未感觉到伤口。 |
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