Character names for COMException HRESULT error codes in .NET.

Question

I would like to be able to use the standard symbolic names for HRESULT returned by COM components in my .NET code. For example, I would like to write code as follows:

try {
    someComObject->DoSomething();
}
catch (COMException ex) {
    if (ex.ErrorCode == E_FAIL) {
        HandleFail();
    }
    else if (ex.ErrorCode == E_OUTOFMEMORY) {
        HandleOutOfMemory();
    }
    else {
        HandleComError(ex.ErrorCode);
    }
}

However, I cannot find anywhere in the .NET frameworks where characters such as E_FAIL, E_OUTOFMEMORY, E_UNEXPECTED, etc. are defined. For native Win32 applications, you can get the definitions from <winerror.h> (see http://msdn.microsoft.com/en-us/library/aa378137(VS.85).aspx ).

I can, of course, define them myself, wherever they need, for example:

int E_FAIL = unchecked((int)0x80004005L);

, . , - , MSDN .

- .NET?

Answer 1

, . , pinvoke.net. . C , COM.

COMException E_OUTOFMEMORY. OutOfMemoryExcetpion. HRESULTS, . . MSDN.