42 lines
940 B
C
42 lines
940 B
C
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#ifndef __NmStd_h__
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#define __NmStd_h__
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// Useful macros
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inline LONG RectWidth(const RECT* pr) { return pr->right - pr->left; }
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inline LONG RectHeight(const RECT* pr) { return pr->bottom - pr->top; }
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inline LONG RectWidth(const RECT& rpr) { return rpr.right - rpr.left; }
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inline LONG RectHeight(const RECT& rpr) { return rpr.bottom - rpr.top; }
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inline HRESULT GetLocalIPAddress( DWORD *pdwIPAddress )
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{
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HRESULT hr = S_OK;
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if( pdwIPAddress )
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{
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// get local host name
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CHAR szLocalHostName[MAX_PATH];
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szLocalHostName[0] = '\0';
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gethostname(&szLocalHostName[0], MAX_PATH);
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// get the host entry by name
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PHOSTENT phe = gethostbyname(&szLocalHostName[0]);
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if (phe != NULL)
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{
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// get info from the host entry
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*pdwIPAddress = *(DWORD *) phe->h_addr;
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}
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else
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{
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hr = MAKE_HRESULT(SEVERITY_ERROR,FACILITY_INTERNET,WSAGetLastError());
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}
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}
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else
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{
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hr = E_INVALIDARG;
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}
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return hr;
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}
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#endif // ! _NMUTIL_H_
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