| title | _com_raise_error | Microsoft Docs | |||||||||||||
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| ms.date | 11/04/2016 | |||||||||||||
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| ms.assetid | a98226c2-c3fe-44f1-8ff5-85863de11cd6 | |||||||||||||
| caps.latest.revision | 10 | |||||||||||||
| author | mikeblome | |||||||||||||
| ms.author | mblome | |||||||||||||
| manager | ghogen | |||||||||||||
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Microsoft Specific
Throws a _com_error in response to a failure.
void __stdcall _com_raise_error(
HRESULT hr,
IErrorInfo* perrinfo = 0
);
hr
HRESULT information.
perrinfo
IErrorInfo object.
_com_raise_error, which is defined in comdef.h, can be replaced by a user-written version of the same name and prototype. This could be done if you want to use #import but do not want to use C++ exception handling. In that case, a user version of _com_raise_error might decide to do a longjmp or display a message box and halt. The user version should not return, though, because the compiler COM support code does not expect it to return.
You can also use _set_com_error_handler to replace the default error-handling function.
By default, _com_raise_error is defined as follows:
void __stdcall _com_raise_error(HRESULT hr, IErrorInfo* perrinfo) {
throw _com_error(hr, perrinfo);
}
END Microsoft Specific
Header: comdef.h
Lib: If the wchar_t is Native Type compiler option is on, use comsuppw.lib or comsuppwd.lib. If wchar_t is Native Type is off, use comsupp.lib. For more information, see /Zc:wchar_t (wchar_t Is Native Type).