#define IMPLEMENT_DYNAMIC(class_name, base_class_name) \ _IMPLEMENT_RUNTIMECLASS(class_name, base_class_name, 0XFFFF, NULL) class CObject { public: CObject() {} ~CObject() {} virtual CRuntimeClass* GetRuntimeCl
RUNTIME_CLASS为class_name指定的类返回一个指向CRuntimeClass结构的指针。只有用DECLARE_DYNAMIC,DECLARE_DYNCREATE或DECLARE_SERIAL定义的CObject的派生类才能返回CRuntimeClass结构指针。更多的信息参见“Visual C++程序员指南”中的“CObject类”主题。 【示例】 // RUNTIME_CLASS的例子 CRuntimeClass* prt =RUNTIM...
Specifies that your object must be aggregated. DECLARE_ONLY_AGGREGATABLE( x ) Parameters x [in] The name of the class object you are defining as only aggregatable. Remarks DECLARE_ONLY_AGGREGATABLEcauses an error (E_FAIL) if an attempt is made toCoCreateyour object as nonaggregated object. ...
Enables objects ofCObject-derived classes to be created dynamically at run time. Syntax DECLARE_DYNCREATE( class_name ) Parameters class_name The actual name of the class. Remarks The framework uses this ability to create new objects dynamically. For example, the new view created when you open ...
Adds the ability to access run-time information about an object's class when deriving a class fromCObject. Syntax DECLARE_DYNAMIC( class_name ) Parameters class_name The actual name of the class. Remarks Add theDECLARE_DYNAMICmacro to the header (.h) module for the class, then include that...
**如果 Option Strict 设置为 Off,并且未在 parameterlist 中指定某个形参的数据类型,Visual Basic 编译器会将对应的实参转换为 Object 数据类型。 同样,如果未指定 returntype,编译器会将返回数据类型转换为 Object。 提示由于所处理的外部过程有可能是在不同平台上编写的,因此,对数据类型做出任何假定或允许它们...
可讓物件的CObject-衍生類別,可在執行階段以動態方式建立。 DECLARE_DYNCREATE(class_name ) 參數 class_name 類別的實際名稱。 備註 架構會使用這項功能,以動態方式建立新的物件。比方說,新建立的檢視開啟新文件時。文件、 檢視和框架類別應該支援動態建立,因為架構必須動態地建立。
Adds the ability to access run-time information about an object's class when deriving a class from CObject. Αντιγραφή DECLARE_DYNAMIC(class_name ) Parameters class_name The actual name of the class. Remarks Add the DECLARE_DYNAMIC macro to the header (.h) module for the ...
Adds the ability to access run-time information about an object's class when deriving a class from CObject. Syntax Copy DECLARE_DYNAMIC( class_name ) Parameters class_name The actual name of the class. Remarks Add the DECLARE_DYNAMIC macro to the header (.h) module for the class, ...
Adds the ability to access run-time information about an object's class when deriving a class from CObject. Syntax Copy DECLARE_DYNAMIC( class_name ) Parameters class_name The actual name of the class. Remarks Add the DECLARE_DYNAMIC macro to the header (.h) module for the class, ...