146 lines
3.6 KiB
C++
146 lines
3.6 KiB
C++
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// TVProfile.cpp : Implementation of CTVProfile
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#include "stdafx.h"
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#include "Tvprof.h"
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#include "TVProfile.h"
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typedef TCHAR IPADDR_TSTR[4*4];
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TCHAR gc_tszPathTVProfile[] = _TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Applets\\TVPlayer");
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TCHAR gc_tszIPSinkAddress[] = _TEXT("IPSinkAddress");
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TCHAR gc_tszAudioDestination[] = _TEXT("AudioDestination");
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/////////////////////////////////////////////////////////////////////////////
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// CTVProfile
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STDMETHODIMP CTVProfile::get_IPSinkAddress(BSTR *pVal)
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{
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if (NULL == pVal)
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return E_POINTER;
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HRESULT hr = S_OK;
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HKEY hKey = NULL;
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LONG lRes;
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// TODO: Once we expand the list of environment variables, write a function
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// ReadMachineProfile that reads and caches all HKLM variables at once, and
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// call it from here if not already called.
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// Open key
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lRes = RegCreateKeyEx(HKEY_LOCAL_MACHINE,
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gc_tszPathTVProfile,
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0,
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NULL,
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REG_OPTION_NON_VOLATILE,
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KEY_QUERY_VALUE,
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NULL,
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&hKey,
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NULL );
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if ((lRes != ERROR_SUCCESS) || (hKey == NULL))
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return E_FAIL;
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IPADDR_TSTR tszData;
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DWORD cbData;
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DWORD dwType;
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cbData = sizeof(IPADDR_TSTR);
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lRes = RegQueryValueExA(hKey,
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gc_tszIPSinkAddress,
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NULL,
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&dwType,
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(LPBYTE)tszData,
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&cbData);
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RegCloseKey(hKey);
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if (lRes != ERROR_SUCCESS)
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{
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return E_FAIL;
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}
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if (dwType != REG_SZ)
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{
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// Registry is messed up. Value of IPStringAddress is not a string.
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return E_FAIL;
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}
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#ifdef UNICODE
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*pVal = SysAllocString(tszData);
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if (NULL == *pVal)
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{
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return E_OUTOFMEMORY;
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}
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#else
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*pVal = SysAllocStringLen(NULL, cbData); // length of string == cbData
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if (NULL == *pVal)
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{
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return E_OUTOFMEMORY;
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}
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int cConverted = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, tszData, cbData, *pVal, cbData);
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if (0 == cConverted)
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{
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return HRESULT_FROM_WIN32(GetLastError());
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}
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#endif
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return S_OK;
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}
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//******************************************************************************************
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STDMETHODIMP CTVProfile::get_AudioDestination(long *pVal)
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{
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if (NULL == pVal)
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return E_POINTER;
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HRESULT hr = S_OK;
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HKEY hKey = NULL;
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LONG lRes;
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// Open key
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lRes = RegCreateKeyEx(HKEY_LOCAL_MACHINE,
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gc_tszPathTVProfile,
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0,
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NULL,
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REG_OPTION_NON_VOLATILE,
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KEY_QUERY_VALUE,
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NULL,
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&hKey,
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NULL );
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if ((lRes != ERROR_SUCCESS) || (hKey == NULL))
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return E_FAIL;
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DWORD dwAudioDestination;
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DWORD cbData;
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DWORD dwType;
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cbData = sizeof(DWORD);
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lRes = RegQueryValueEx(hKey,
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gc_tszAudioDestination,
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NULL,
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&dwType,
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(LPBYTE)&dwAudioDestination,
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&cbData);
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RegCloseKey(hKey);
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if (lRes != ERROR_SUCCESS)
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{
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return E_FAIL;
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}
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if (dwType != REG_DWORD)
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{
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// Registry is messed up. Value of AudioDestination is not a dword
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return E_FAIL;
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}
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*pVal = (long)dwAudioDestination;
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return S_OK;
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}
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