Suppose I call a COM object from a .NET applicaiton, but COM object throws an error. What happens on the .NET end?

Q

Suppose I call a COM object from a .NET applicaiton, but COM object throws an error. What happens on the .NET end?

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A

COM methods report errors by returning HRESULTs; .NET methods report them by throwing exceptions. The runtime handles the transition between the two. Each exception class in the .NET Framework maps to an HRESULT.

2014-12-15, 1252👍, 0💬