新建一个COM组件对象
[id(153), helpstring("method NewComObject")] IDispatch* NewComObject(BSTR pszClassName);
例如: 现在支持的类名
IMxDrawUiPrPoint,IMxDrawUiPrAngle,IMxDrawUiPrDist,IMxDrawUiPrDouble,IMxDrawUiPrEntity,IMxDrawUiPrInt,IMxDrawUiPrKeyWord,IMxDrawUiPrString IMxDrawPrint,IMxDrawApplication,IMxDrawMcCmColor,IMxDrawCompare,IMxDrawPoints,IMxDrawVector3d,IMxDrawMatrix3d,IMxDrawAnimation,IMxDrawModifyTheColor
_DMxDrawX 方法