得到一个字符串类型的系统变量
[id(144), helpstring("method GetSysVarString")]
VARIANT_BOOL GetSysVarString(BSTR pszVarName, BSTR* pRet);例如: JS
var pRet = mxOcx.Call("GetSysVar","ORTHOMODE"); if(pRet != null) { var iOrthoMode = pRet.AtLong(1); alert(iOrthoMode); }