主要用到函数说明：MxDrawXCustomEvent::MxDrawXCustomEntity::getGripPoints

自定义实体事件，得到拖放夹点，详细说明如下：

参数

说明

LONGLONG lEntity

自定义实体id

OUT AcGePoint3dArray& gripPoints

返回要拖放的夹点

VB代码实现如下：

If sEventName = ​​​​"MxDrawXCustomEntity::getGripPoints"​​​ ​​Then​​
 
​​Dim param77 As MxDrawResbuf​​
​​Set param77 = MxDrawX1.CustomEventParam()​​
 
 
​​Set customEntity = MxDrawX1.CallEx(​​​​"Mx_GetCustomEntity"​​​​, param77)​​
 
 
​​Set sPt = customEntity.GetPoint(​​​​"startpoint"​​​​)​​
​​Set ePt = customEntity.GetPoint(​​​​"endpoint"​​​​)​​
 
 
 
​​param77.RemoveAll​​
 
 
​​param77.AddPoint sPt​​
​​param77.AddPoint ePt​​
​​MxDrawX1.CallEx ​​​​"Mx_SetEventRetEx"​​​​, param77​​
 
 
​​End If​​