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Browse - programming tips - mfc run time type checking

Date: 2009sep29
Language: C++
Platform: MFC
Keywords: RTTI (Run Time Type Identification)

Q.  How can I do run-time type checking with MFC?

A.  If your class inherits from CObject (which all the Microsoft MFC classes do) you can use the IsKindOf() method like this:

	if (pMyObject->IsKindOf(RUNTIME_CLASS( CMyClass) ) );
	{
		MessageBox(..., "Yes, its the right class");
	}

Or

	ASSERT(pMyObject->IsKindOf(RUNTIME_CLASS( CMyClass) ) );

There is even a build in assert for this:

	ASSERT_KINDOF(CMyClass, pMyObject);

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