164 lines
4.4 KiB
C++
164 lines
4.4 KiB
C++
// File: intlutil.cpp
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#include <precomp.h>
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#include <shlwapi.h>
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#include <confreg.h>
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#include <regentry.h>
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#include <oprahcom.h>
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#include "intlutil.h"
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static const TCHAR g_szSHLWAPI[] = TEXT("shlwapi.dll");
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const LPCSTR c_szMLLoadLibraryA = (LPCSTR)377;
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const LPCSTR c_szMLLoadLibraryW = (LPCSTR)378;
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const LPCSTR c_szDllGetVersion = "DllGetVersion";
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const LPCSTR c_szPathRemoveFileSpecA = "PathRemoveFileSpecA";
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const LPCSTR c_szPathRemoveFileSpecW = "PathRemoveFileSpecW";
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const DWORD SHLWAPI_MAJOR_VERSION = 5;
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const DWORD SHLWAPI_MINOR_VERSION = 0;
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const DWORD SHLWAPI_BUILD_NUMBER = 1000;
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typedef HINSTANCE (STDAPICALLTYPE * PFN_MLLoadLibraryA)(LPCSTR lpLibFileName, HMODULE hModule, DWORD dwCrossCodePage);
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typedef HINSTANCE (STDAPICALLTYPE * PFN_MLLoadLibraryW)(LPCWSTR lpLibFileName, HMODULE hModule, DWORD dwCrossCodePage);
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typedef BOOL (STDAPICALLTYPE * PFN_PathRemoveFileSpecA)(LPSTR pszPath);
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typedef BOOL (STDAPICALLTYPE * PFN_PathRemoveFileSpecW)(LPWSTR pszPath);
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#ifdef UNICODE
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#define c_szMLLoadLibrary c_szMLLoadLibraryW
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#define PFN_MLLoadLibrary PFN_MLLoadLibraryW
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#define c_szPathRemoveFileSpec c_szPathRemoveFileSpecW
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#define PFN_PathRemoveFileSpec PFN_PathRemoveFileSpecW
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#else
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#define c_szMLLoadLibrary c_szMLLoadLibraryA
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#define PFN_MLLoadLibrary PFN_MLLoadLibraryA
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#define c_szPathRemoveFileSpec c_szPathRemoveFileSpecA
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#define PFN_PathRemoveFileSpec PFN_PathRemoveFileSpecA
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#endif
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BOOL g_fUseMLHelp = FALSE;
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inline BOOL CheckShlwapiVersion(HINSTANCE hShlwapiDll)
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{
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BOOL fVersionOk = FALSE;
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DLLGETVERSIONPROC pfnDllGetVersion = (DLLGETVERSIONPROC)GetProcAddress(hShlwapiDll, c_szDllGetVersion);
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if(pfnDllGetVersion)
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{
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DLLVERSIONINFO dvi;
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HRESULT hr;
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ZeroMemory(&dvi, sizeof(dvi));
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dvi.cbSize = sizeof(dvi);
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hr = (*pfnDllGetVersion)(&dvi);
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if (SUCCEEDED(hr))
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{
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if (dvi.dwMajorVersion > SHLWAPI_MAJOR_VERSION)
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{
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fVersionOk = TRUE;
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}
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else if (dvi.dwMajorVersion == SHLWAPI_MAJOR_VERSION)
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{
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if (dvi.dwMinorVersion > SHLWAPI_MINOR_VERSION)
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{
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fVersionOk = TRUE;
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}
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else if (dvi.dwMinorVersion == SHLWAPI_MINOR_VERSION)
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{
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if (dvi.dwBuildNumber >= SHLWAPI_BUILD_NUMBER)
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{
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fVersionOk = TRUE;
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}
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}
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}
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}
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}
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return fVersionOk;
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}
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/* L O A D N M R E S */
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/*-------------------------------------------------------------------------
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%%Function: LoadNmRes
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Load the international resource dll.
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-------------------------------------------------------------------------*/
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HINSTANCE NMINTERNAL LoadNmRes(LPCTSTR pszFile)
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{
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HINSTANCE hInst = NULL;
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if (NULL == pszFile)
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{
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// Use the default file name
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pszFile = TEXT("nmres.dll");
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}
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RegEntry reConf(CONFERENCING_KEY, HKEY_LOCAL_MACHINE);
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if (!reConf.GetNumber(REGVAL_DISABLE_PLUGGABLE_UI, 0))
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{
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HINSTANCE hLib = LoadLibrary(g_szSHLWAPI);
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if (hLib)
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{
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if (CheckShlwapiVersion(hLib))
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{
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PFN_MLLoadLibrary pfnMLLoadLibrary =
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(PFN_MLLoadLibrary)GetProcAddress(hLib, c_szMLLoadLibrary);
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PFN_PathRemoveFileSpec pfnPathRemoveFileSpec =
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(PFN_PathRemoveFileSpec)GetProcAddress(hLib, c_szPathRemoveFileSpec);
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if ((NULL != pfnMLLoadLibrary) && (NULL != pfnPathRemoveFileSpec))
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{
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hInst = pfnMLLoadLibrary(pszFile, GetModuleHandle(NULL), 0);
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if (hInst)
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{
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// check to see if the Resource DLL was loaded from the ML Satellite
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// if not, don't use ML for Help
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TCHAR szThis[MAX_PATH];
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TCHAR szResource[MAX_PATH];
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if (GetModuleFileName(NULL, szThis, CCHMAX(szThis)) &&
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pfnPathRemoveFileSpec(szThis) &&
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GetModuleFileName(hInst, szResource, CCHMAX(szThis)) &&
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pfnPathRemoveFileSpec(szResource) &&
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(0 != lstrcmp(szThis, szResource)) )
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{
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g_fUseMLHelp = TRUE;
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}
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}
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}
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}
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}
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}
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if (!hInst)
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{
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TCHAR szDll[MAX_PATH];
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if (GetInstallDirectory(szDll))
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{
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if ((lstrlen(pszFile) + lstrlen(szDll)) < CCHMAX(szDll))
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{
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lstrcat(szDll, pszFile);
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// It would be best to load the dll as a resource, unfortunately
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// CreateWindow and PropertySheet code fails unless this is a
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// real, active module handle
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//
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// hInst = LoadLibraryEx(szDll, NULL, LOAD_LIBRARY_AS_DATAFILE);
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//
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hInst = LoadLibrary(szDll);
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if (NULL == hInst)
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{
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ERROR_OUT(("Unable to load resource file [%s]", szDll));
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}
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}
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}
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}
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return hInst;
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}
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