home *** CD-ROM | disk | FTP | other *** search
- //-----------------------------------------------------------------------------
- // File: GetDXVer.cpp
- //
- // Desc: Demonstrates how applications can detect what version of DirectX
- // is installed.
- //
- // (C) Copyright Microsoft Corp. All rights reserved.
- //-----------------------------------------------------------------------------
- #define INITGUID
- #include <windows.h>
- #include <stdio.h>
- #include <tchar.h>
- #include <dxdiag.h>
-
-
- HRESULT GetDirectXVersionViaDxDiag( DWORD* pdwDirectXVersionMajor, DWORD* pdwDirectXVersionMinor, TCHAR* pcDirectXVersionLetter );
- HRESULT GetDirectXVerionViaFileVersions( DWORD* pdwDirectXVersionMajor, DWORD* pdwDirectXVersionMinor, TCHAR* pcDirectXVersionLetter );
- HRESULT GetFileVersion( TCHAR* szPath, ULARGE_INTEGER* pllFileVersion );
- ULARGE_INTEGER MakeInt64( WORD a, WORD b, WORD c, WORD d );
- int CompareLargeInts( ULARGE_INTEGER ullParam1, ULARGE_INTEGER ullParam2 );
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: GetDXVersion()
- // Desc: This function returns the DirectX version.
- // Arguments:
- // pdwDirectXVersion - This can be NULL. If non-NULL, the return value is:
- // 0x00000000 = No DirectX installed
- // 0x00010000 = DirectX 1.0 installed
- // 0x00020000 = DirectX 2.0 installed
- // 0x00030000 = DirectX 3.0 installed
- // 0x00030001 = DirectX 3.0a installed
- // 0x00050000 = DirectX 5.0 installed
- // 0x00060000 = DirectX 6.0 installed
- // 0x00060100 = DirectX 6.1 installed
- // 0x00060101 = DirectX 6.1a installed
- // 0x00070000 = DirectX 7.0 installed
- // 0x00070001 = DirectX 7.0a installed
- // 0x00080000 = DirectX 8.0 installed
- // 0x00080100 = DirectX 8.1 installed
- // 0x00080101 = DirectX 8.1a installed
- // 0x00080102 = DirectX 8.1b installed
- // 0x00080200 = DirectX 8.2 installed
- // 0x00090000 = DirectX 9.0 installed
- // strDirectXVersion - Destination string to receive a string name of the DirectX Version. Can be NULL.
- // cchDirectXVersion - Size of destination buffer in characters. Length should be at least 10 chars.
- // Returns: S_OK if the function succeeds.
- // E_FAIL if the DirectX version info couldn't be determined.
- //
- // Please note that this code is intended as a general guideline. Your
- // app will probably be able to simply query for functionality (via
- // QueryInterface) for one or two components.
- //
- // Also please ensure your app will run on future releases of DirectX.
- // For example:
- // "if( dwDirectXVersion != 0x00080100 ) return false;" is VERY BAD.
- // "if( dwDirectXVersion < 0x00080100 ) return false;" is MUCH BETTER.
- //-----------------------------------------------------------------------------
- HRESULT GetDXVersion( DWORD* pdwDirectXVersion, TCHAR* strDirectXVersion, int cchDirectXVersion )
- {
- bool bGotDirectXVersion = false;
-
- // Init values to unknown
- if( pdwDirectXVersion )
- *pdwDirectXVersion = 0;
- if( strDirectXVersion && cchDirectXVersion > 0 )
- strDirectXVersion[0] = 0;
-
- DWORD dwDirectXVersionMajor = 0;
- DWORD dwDirectXVersionMinor = 0;
- TCHAR cDirectXVersionLetter = ' ';
-
- // First, try to use dxdiag's COM interface to get the DirectX version.
- // The only downside is this will only work on DX9 or later.
- if( SUCCEEDED( GetDirectXVersionViaDxDiag( &dwDirectXVersionMajor, &dwDirectXVersionMinor, &cDirectXVersionLetter ) ) )
- bGotDirectXVersion = true;
-
- if( !bGotDirectXVersion )
- {
- // Getting the DirectX version info from DxDiag failed,
- // so most likely we are on DX8.x or earlier
- if( SUCCEEDED( GetDirectXVerionViaFileVersions( &dwDirectXVersionMajor, &dwDirectXVersionMinor, &cDirectXVersionLetter ) ) )
- bGotDirectXVersion = true;
- }
-
- // If both techniques failed, then return E_FAIL
- if( !bGotDirectXVersion )
- return E_FAIL;
-
- // Set the output values to what we got and return
- cDirectXVersionLetter = (char)tolower(cDirectXVersionLetter);
-
- if( pdwDirectXVersion )
- {
- // If pdwDirectXVersion is non-NULL, then set it to something
- // like 0x00080102 which would represent DX8.1b
- DWORD dwDirectXVersion = dwDirectXVersionMajor;
- dwDirectXVersion <<= 8;
- dwDirectXVersion += dwDirectXVersionMinor;
- dwDirectXVersion <<= 8;
- if( cDirectXVersionLetter >= 'a' && cDirectXVersionLetter <= 'z' )
- dwDirectXVersion += (cDirectXVersionLetter - 'a') + 1;
-
- *pdwDirectXVersion = dwDirectXVersion;
- }
-
- if( strDirectXVersion && cchDirectXVersion > 0 )
- {
- // If strDirectXVersion is non-NULL, then set it to something
- // like "8.1b" which would represent DX8.1b
- if( cDirectXVersionLetter == ' ' )
- _sntprintf( strDirectXVersion, cchDirectXVersion, TEXT("%d.%d"), dwDirectXVersionMajor, dwDirectXVersionMinor );
- else
- _sntprintf( strDirectXVersion, cchDirectXVersion, TEXT("%d.%d%c"), dwDirectXVersionMajor, dwDirectXVersionMinor, cDirectXVersionLetter );
- strDirectXVersion[cchDirectXVersion-1] = 0;
- }
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: GetDirectXVersionViaDxDiag()
- // Desc: Tries to get the DirectX version from DxDiag's COM interface
- //-----------------------------------------------------------------------------
- HRESULT GetDirectXVersionViaDxDiag( DWORD* pdwDirectXVersionMajor,
- DWORD* pdwDirectXVersionMinor,
- TCHAR* pcDirectXVersionLetter )
- {
- HRESULT hr;
- bool bCleanupCOM = false;
-
- bool bSuccessGettingMajor = false;
- bool bSuccessGettingMinor = false;
- bool bSuccessGettingLetter = false;
-
- // Init COM. COM may fail if its already been inited with a different
- // concurrency model. And if it fails you shouldn't release it.
- hr = CoInitialize(NULL);
- bCleanupCOM = SUCCEEDED(hr);
-
- // Get an IDxDiagProvider
- bool bGotDirectXVersion = false;
- IDxDiagProvider* pDxDiagProvider = NULL;
- hr = CoCreateInstance( CLSID_DxDiagProvider,
- NULL,
- CLSCTX_INPROC_SERVER,
- IID_IDxDiagProvider,
- (LPVOID*) &pDxDiagProvider );
- if( SUCCEEDED(hr) )
- {
- // Fill out a DXDIAG_INIT_PARAMS struct
- DXDIAG_INIT_PARAMS dxDiagInitParam;
- ZeroMemory( &dxDiagInitParam, sizeof(DXDIAG_INIT_PARAMS) );
- dxDiagInitParam.dwSize = sizeof(DXDIAG_INIT_PARAMS);
- dxDiagInitParam.dwDxDiagHeaderVersion = DXDIAG_DX9_SDK_VERSION;
- dxDiagInitParam.bAllowWHQLChecks = false;
- dxDiagInitParam.pReserved = NULL;
-
- // Init the m_pDxDiagProvider
- hr = pDxDiagProvider->Initialize( &dxDiagInitParam );
- if( SUCCEEDED(hr) )
- {
- IDxDiagContainer* pDxDiagRoot = NULL;
- IDxDiagContainer* pDxDiagSystemInfo = NULL;
-
- // Get the DxDiag root container
- hr = pDxDiagProvider->GetRootContainer( &pDxDiagRoot );
- if( SUCCEEDED(hr) )
- {
- // Get the object called DxDiag_SystemInfo
- hr = pDxDiagRoot->GetChildContainer( L"DxDiag_SystemInfo", &pDxDiagSystemInfo );
- if( SUCCEEDED(hr) )
- {
- VARIANT var;
- VariantInit( &var );
-
- // Get the "dwDirectXVersionMajor" property
- hr = pDxDiagSystemInfo->GetProp( L"dwDirectXVersionMajor", &var );
- if( SUCCEEDED(hr) && var.vt == VT_UI4 )
- {
- if( pdwDirectXVersionMajor )
- *pdwDirectXVersionMajor = var.ulVal;
- bSuccessGettingMajor = true;
- }
- VariantClear( &var );
-
- // Get the "dwDirectXVersionMinor" property
- hr = pDxDiagSystemInfo->GetProp( L"dwDirectXVersionMinor", &var );
- if( SUCCEEDED(hr) && var.vt == VT_UI4 )
- {
- if( pdwDirectXVersionMinor )
- *pdwDirectXVersionMinor = var.ulVal;
- bSuccessGettingMinor = true;
- }
- VariantClear( &var );
-
- // Get the "szDirectXVersionLetter" property
- hr = pDxDiagSystemInfo->GetProp( L"szDirectXVersionLetter", &var );
- if( SUCCEEDED(hr) && var.vt == VT_BSTR && SysStringLen( var.bstrVal ) != 0 )
- {
- #ifdef UNICODE
- *pcDirectXVersionLetter = var.bstrVal[0];
- #else
- char strDestination[10];
- WideCharToMultiByte( CP_ACP, 0, var.bstrVal, -1, strDestination, 10*sizeof(CHAR), NULL, NULL );
- if( pcDirectXVersionLetter )
- *pcDirectXVersionLetter = strDestination[0];
- #endif
- bSuccessGettingLetter = true;
- }
- VariantClear( &var );
-
- // If it all worked right, then mark it down
- if( bSuccessGettingMajor && bSuccessGettingMinor && bSuccessGettingLetter )
- bGotDirectXVersion = true;
-
- pDxDiagSystemInfo->Release();
- }
-
- pDxDiagRoot->Release();
- }
- }
-
- pDxDiagProvider->Release();
- }
-
- if( bCleanupCOM )
- CoUninitialize();
-
- if( bGotDirectXVersion )
- return S_OK;
- else
- return E_FAIL;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: GetDirectXVerionViaFileVersions()
- // Desc: Tries to get the DirectX version by looking at DirectX file versions
- //-----------------------------------------------------------------------------
- HRESULT GetDirectXVerionViaFileVersions( DWORD* pdwDirectXVersionMajor,
- DWORD* pdwDirectXVersionMinor,
- TCHAR* pcDirectXVersionLetter )
- {
- ULARGE_INTEGER llFileVersion;
- TCHAR szPath[512];
- TCHAR szFile[512];
- BOOL bFound = false;
-
- if( GetSystemDirectory( szPath, MAX_PATH ) != 0 )
- {
- szPath[MAX_PATH-1]=0;
-
- // Switch off the ddraw version
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\ddraw.dll") );
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 2, 0, 95 ) ) >= 0 ) // Win9x version
- {
- // flle is >= DX1.0 version, so we must be at least DX1.0
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 1;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
-
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 3, 0, 1096 ) ) >= 0 ) // Win9x version
- {
- // flle is is >= DX2.0 version, so we must DX2.0 or DX2.0a (no redist change)
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 2;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
-
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 4, 0, 68 ) ) >= 0 ) // Win9x version
- {
- // flle is is >= DX3.0 version, so we must be at least DX3.0
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 3;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
- }
-
- // Switch off the d3drg8x.dll version
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\d3drg8x.dll") );
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 4, 0, 70 ) ) >= 0 ) // Win9x version
- {
- // d3drg8x.dll is the DX3.0a version, so we must be DX3.0a or DX3.0b (no redist change)
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 3;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT('a');
- bFound = true;
- }
- }
-
- // Switch off the ddraw version
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\ddraw.dll") );
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 5, 0, 155 ) ) >= 0 ) // Win9x version
- {
- // ddraw.dll is the DX5.0 version, so we must be DX5.0 or DX5.2 (no redist change)
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 5;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
-
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 6, 0, 318 ) ) >= 0 ) // Win9x version
- {
- // ddraw.dll is the DX6.0 version, so we must be at least DX6.0
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 6;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
-
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 6, 0, 436 ) ) >= 0 ) // Win9x version
- {
- // ddraw.dll is the DX6.1 version, so we must be at least DX6.1
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 6;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 1;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
- }
-
- // Switch off the dplayx.dll version
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\dplayx.dll") );
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 6, 3, 518 ) ) >= 0 ) // Win9x version
- {
- // ddraw.dll is the DX6.1 version, so we must be at least DX6.1a
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 6;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 1;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT('a');
- bFound = true;
- }
- }
-
- // Switch off the ddraw version
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\ddraw.dll") );
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 7, 0, 700 ) ) >= 0 ) // Win9x version
- {
- // TODO: find win2k version
-
- // ddraw.dll is the DX7.0 version, so we must be at least DX7.0
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 7;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
- }
-
- // Switch off the dinput version
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\dinput.dll") );
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( CompareLargeInts( llFileVersion, MakeInt64( 4, 7, 0, 716 ) ) >= 0 ) // Win9x version
- {
- // ddraw.dll is the DX7.0 version, so we must be at least DX7.0a
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 7;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT('a');
- bFound = true;
- }
- }
-
- // Switch off the ddraw version
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\ddraw.dll") );
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( (HIWORD(llFileVersion.HighPart) == 4 && CompareLargeInts( llFileVersion, MakeInt64( 4, 8, 0, 400 ) ) >= 0) || // Win9x version
- (HIWORD(llFileVersion.HighPart) == 5 && CompareLargeInts( llFileVersion, MakeInt64( 5, 1, 2258, 400 ) ) >= 0) ) // Win2k/WinXP version
- {
- // ddraw.dll is the DX8.0 version, so we must be at least DX8.0 or DX8.0a (no redist change)
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 8;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
- }
-
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\d3d8.dll"));
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( (HIWORD(llFileVersion.HighPart) == 4 && CompareLargeInts( llFileVersion, MakeInt64( 4, 8, 1, 881 ) ) >= 0) || // Win9x version
- (HIWORD(llFileVersion.HighPart) == 5 && CompareLargeInts( llFileVersion, MakeInt64( 5, 1, 2600, 881 ) ) >= 0) ) // Win2k/WinXP version
- {
- // d3d8.dll is the DX8.1 version, so we must be at least DX8.1
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 8;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 1;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
-
- if( (HIWORD(llFileVersion.HighPart) == 4 && CompareLargeInts( llFileVersion, MakeInt64( 4, 8, 1, 901 ) ) >= 0) || // Win9x version
- (HIWORD(llFileVersion.HighPart) == 5 && CompareLargeInts( llFileVersion, MakeInt64( 5, 1, 2600, 901 ) ) >= 0) ) // Win2k/WinXP version
- {
- // d3d8.dll is the DX8.1a version, so we must be at least DX8.1a
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 8;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 1;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT('a');
- bFound = true;
- }
- }
-
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\mpg2splt.ax"));
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( CompareLargeInts( llFileVersion, MakeInt64( 6, 3, 1, 885 ) ) >= 0 ) // Win9x/Win2k/WinXP version
- {
- // quartz.dll is the DX8.1b version, so we must be at least DX8.1b
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 8;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 1;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT('b');
- bFound = true;
- }
- }
-
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\dpnet.dll"));
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- if( (HIWORD(llFileVersion.HighPart) == 4 && CompareLargeInts( llFileVersion, MakeInt64( 4, 9, 0, 134 ) ) >= 0) || // Win9x version
- (HIWORD(llFileVersion.HighPart) == 5 && CompareLargeInts( llFileVersion, MakeInt64( 5, 2, 3677, 134 ) ) >= 0) ) // Win2k/WinXP version
- {
- // dpnet.dll is the DX8.2 version, so we must be at least DX8.2
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 8;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 2;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
- }
-
- _tcscpy( szFile, szPath );
- _tcscat( szFile, TEXT("\\d3d9.dll"));
- if( SUCCEEDED( GetFileVersion( szFile, &llFileVersion ) ) )
- {
- // File exists, but be at least DX9
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 9;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- bFound = true;
- }
- }
-
- if( !bFound )
- {
- // No DirectX installed
- if( pdwDirectXVersionMajor ) *pdwDirectXVersionMajor = 0;
- if( pdwDirectXVersionMinor ) *pdwDirectXVersionMinor = 0;
- if( pcDirectXVersionLetter ) *pcDirectXVersionLetter = TEXT(' ');
- }
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: GetFileVersion()
- // Desc: Returns ULARGE_INTEGER with a file version of a file, or a failure code.
- //-----------------------------------------------------------------------------
- HRESULT GetFileVersion( TCHAR* szPath, ULARGE_INTEGER* pllFileVersion )
- {
- if( szPath == NULL || pllFileVersion == NULL )
- return E_INVALIDARG;
-
- DWORD dwHandle;
- UINT cb;
- cb = GetFileVersionInfoSize( szPath, &dwHandle );
- if (cb > 0)
- {
- BYTE* pFileVersionBuffer = new BYTE[cb];
- if( pFileVersionBuffer == NULL )
- return E_OUTOFMEMORY;
-
- if (GetFileVersionInfo( szPath, 0, cb, pFileVersionBuffer))
- {
- VS_FIXEDFILEINFO* pVersion = NULL;
- if (VerQueryValue(pFileVersionBuffer, TEXT("\\"), (VOID**)&pVersion, &cb) &&
- pVersion != NULL)
- {
- pllFileVersion->HighPart = pVersion->dwFileVersionMS;
- pllFileVersion->LowPart = pVersion->dwFileVersionLS;
- delete[] pFileVersionBuffer;
- return S_OK;
- }
- }
-
- delete[] pFileVersionBuffer;
- }
-
- return E_FAIL;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: MakeInt64()
- // Desc: Returns a ULARGE_INTEGER where a<<48|b<<32|c<<16|d<<0
- //-----------------------------------------------------------------------------
- ULARGE_INTEGER MakeInt64( WORD a, WORD b, WORD c, WORD d )
- {
- ULARGE_INTEGER ull;
- ull.HighPart = MAKELONG(b,a);
- ull.LowPart = MAKELONG(d,c);
- return ull;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: CompareLargeInts()
- // Desc: Returns 1 if ullParam1 > ullParam2
- // Returns 0 if ullParam1 = ullParam2
- // Returns -1 if ullParam1 < ullParam2
- //-----------------------------------------------------------------------------
- int CompareLargeInts( ULARGE_INTEGER ullParam1, ULARGE_INTEGER ullParam2 )
- {
- if( ullParam1.HighPart > ullParam2.HighPart )
- return 1;
- if( ullParam1.HighPart < ullParam2.HighPart )
- return -1;
-
- if( ullParam1.LowPart > ullParam2.LowPart )
- return 1;
- if( ullParam1.LowPart < ullParam2.LowPart )
- return -1;
-
- return 0;
- }
-