有时可能需要为给定指针创建 COM 对象。这可以通过 using to 创建对象,然后调用 andfunctions 来设置适当的链接来完成。或者,您可以使用以下导出的全局函数为您完成此工作:AcDbObjectIdAcDbObjectCoCreateInstanceAcAxOleLinkManagerIAcadBaseObject // Get the IUnknown of the existing COM object (or newly created COM // object if one does not exist) that represents the AcDbObject // passed in. // HRESULT AcAxGetIUnknownOfObject(LPUNKNOWN* ppUnk, AcDbObjectId& objId, LPDISPATCH pApp); HRESULT AcAxGetIUnknownOfObject(LPUNKNOWN* ppUnk, AcDbObject* pObj, LPDISPATCH pApp); 除了创建新的 COM 对象之外,这些函数还在 COM 对象与其 AutoCAD 对应对象之间建立双向链接。 |
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