You open the file by calling the in function of the DL_Dxf object and passing a pointer to a class that inherits from the DL_CreationAdapter abstract class.
通过调用 DL_Dxf对象的in函数并将指针传递给一个继承 DL_CreationAdapter抽象类来打开此文件。
Drivers register callback objects by passing a pointer to one of the object's interfaces to the framework object that raises the related event.
驱动程序通过传递一个接口指针给分发相关事件的框架对象，来注册回调对象。
Drivers register callback objects by passing a pointer to one of the object's interfaces to the framework object that raises the related event.
驱动程序通过传递一个接口指针给分发相关事件的框架对象，来注册回调对象。
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