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NF:winerror.HRESULT_FROM_WIN32 |
HRESULT_FROM_WIN32 macro (winerror.h) |
Maps a system error code to an HRESULT value. |
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com\hresult_from_win32_macro.htm |
com |
40e6f80d-a778-4d5f-bb1b-db294815f8b5 |
12/05/2018 |
HRESULT_FROM_WIN32, HRESULT_FROM_WIN32 macro [COM], _com_HRESULT_FROM_WIN32, com.hresult_from_win32, com.hresult_from_win32_macro, winerror/HRESULT_FROM_WIN32 |
winerror.h |
Windows |
Windows 2000 Professional [desktop apps only] |
Windows 2000 Server [desktop apps only] |
Windows |
19H1 |
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Maps a system error code to an HRESULT value.
The system error code.
This macro is defined as follows:
//
// HRESULT_FROM_WIN32(x) used to be a macro, however we now run it as an inline function
// to prevent double evaluation of 'x'. If you still need the macro, you can use __HRESULT_FROM_WIN32(x)
//
#define __HRESULT_FROM_WIN32(x) ((HRESULT)(x) <= 0 ? ((HRESULT)(x)) : ((HRESULT) (((x) & 0x0000FFFF) | (FACILITY_WIN32 << 16) | 0x80000000)))
#ifndef __midl
FORCEINLINE HRESULT HRESULT_FROM_WIN32(unsigned long x) {
return (HRESULT)(x) <= 0 ? (HRESULT)(x) : (HRESULT) (((x) & 0x0000FFFF) | (FACILITY_WIN32 << 16) | 0x80000000);
}
#else
#define HRESULT_FROM_WIN32(x) __HRESULT_FROM_WIN32(x)
#endif