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CComDispatchDriver 

Visual Studio 2005

This class manages COM interface pointers.

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typedef CComQIPtr<IDispatch, &__uuidof(IDispatch)> CComDispatchDriver;

Header: atlbase.h

Reference

CComQIPtr Class

Other Resources

ATL Typedefs

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Remarks

Specialized template class CComPtr<IDispatch> provides helper methods for easy calling IDispatch methods. CComDispatchDriver can be used for making IDispatch Invoke calls.

Example:

 // assumption: IUnknown *dteSolution;  is initialized to an IUnknown pointer to an object with defined property 
 // named DTE 
 ...


 ATL::CComDispatchDriver disp;
 HRESULT hr = dteSolution->QueryInterface(&disp);
 DISPID dtePropID;
 hr = disp.GetIDOfName(L"DTE", &dtePropID);
 ATL::CComVariant vtDTE;
 hr = disp.GetProperty(dtePropID, &vtDTE);






Note: error handling removed for brevity.

        

        

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