357 lines
10 KiB
C++
357 lines
10 KiB
C++
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// Discover.cpp
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// This file contains the main entry point into the application and
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// the implementation of the discover program.
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// (C) Copyright 1997 by Microsoft Corporation. All rights reserved.
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#include <windows.h>
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#include <shlwapi.h> // for string and path functions
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#include <shlobj.h> // SHBrowseForFolder
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#include <shlobjp.h> // ILFree
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#include "resource.h"
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#include "webapp.h"
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#pragma hdrstop
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// Global Data
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TCHAR szInstallPath[MAX_PATH]; // OS install path
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TCHAR szLastUsedPath[MAX_PATH]; // last path used, or empty sting if there's no last used path
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TCHAR szzCDRoms[MAX_PATH]; // list of all available CDRom drives
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TCHAR g_szPath[MAX_PATH]; // The tour location. Ex. "e:\discover\default.htm" or "\\ntbuilds\...\discover\default.htm"
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// Prototypes
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BOOL GetPathFromReg(HKEY hkey, LPTSTR szSubKey, LPTSTR szPath, int cch);
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BOOL GetCDRomPaths(LPTSTR szzPaths, int cch);
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BOOL CheckAllPaths(BOOL bCDOnly);
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BOOL CheckForTour(LPTSTR pszPath);
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INT_PTR DlgProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
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// Macros
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#define ARRAYSIZE(x) (sizeof(x)/sizeof(x[0]))
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#define SZ_INSTALLKEY TEXT("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Setup")
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#define SZ_TOURKEY TEXT("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Applets\\Discover Tour")
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/**
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* This function is the main entry point into our application.
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*
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* @return int Exit code.
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*/
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int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLin, int nShowCmd )
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{
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HWND hwndDesktop = GetDesktopWindow();
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HRESULT hrInit = CoInitialize(NULL); // needed for SHAutoComplete used below
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// Look in the registry to determine the tour path. We want to try both the last path used and
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// windows installation directory.
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GetPathFromReg(HKEY_LOCAL_MACHINE, SZ_INSTALLKEY, szInstallPath, ARRAYSIZE(szInstallPath));
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GetPathFromReg(HKEY_CURRENT_USER, SZ_TOURKEY, szLastUsedPath, ARRAYSIZE(szLastUsedPath));
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GetCDRomPaths(szzCDRoms, ARRAYSIZE(szzCDRoms));
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// Look in several common locations to find the discover tour. We want to check the following
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// locations (in order): the last used directory, the install directory, all CD Rom drives. As
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// soon as we find the tour, stop looking and show the tour.
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BOOL bDiscoverFound = CheckAllPaths( FALSE );
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// if the install path is a CD and the tour isn't found ask them to insert the Windows CD
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if ( !bDiscoverFound && (DRIVE_CDROM == GetDriveType(szInstallPath)) )
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{
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// TODO: supress CD Autoplay during this interval, but only for the Windows 2000 CD.
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// do this by creating the "autorun is running" mutex.
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while (!bDiscoverFound)
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{
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TCHAR szCaption[128];
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TCHAR szText[1024];
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LoadString(hInstance, IDS_NOCDTITLE, szCaption, ARRAYSIZE(szCaption));
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LoadString(hInstance, IDS_NOCDTEXT, szText, ARRAYSIZE(szText));
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if ( IDOK != MessageBox(hwndDesktop, szText, szCaption, MB_OKCANCEL) )
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{
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break;
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}
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// we check all available CD-Rom drives by calling CheckAllPaths and passing TRUE
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bDiscoverFound = CheckAllPaths( TRUE );
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}
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// TODO: release the mutex created above
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}
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// While not found, ask user to type or browse to a new location (network case)
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while ( !bDiscoverFound )
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{
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LONG result;
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result = (LONG)DialogBox(hInstance, MAKEINTRESOURCE(IDD_TOUR), hwndDesktop, DlgProc);
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if ( IDCANCEL == result )
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{
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break;
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}
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// The above dialog sets the szLastUsedPath to the path entered by the user.
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// Check for the tour on that path:
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bDiscoverFound = CheckForTour(szLastUsedPath);
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}
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// 4.) Launch an explorer control to display the tour. We have to host a theater mode
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// control because this is what the code expects. We need to provide a window.external
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// with the exit command as well.
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if ( bDiscoverFound )
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{
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HKEY hkey;
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if ( ERROR_SUCCESS == RegCreateKey( HKEY_CURRENT_USER, SZ_TOURKEY, &hkey ) )
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{
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// We always store the szLastUsedPath. This path might be an empty string but if it is then
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// we want to replace any previous value.
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RegSetValueEx(hkey, TEXT("SourcePath"), 0, REG_SZ, (LPBYTE)szLastUsedPath, ARRAYSIZE(szLastUsedPath));
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// The Direct Music control needs to know the file path for the tour files. Since this
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// path might be different every time we run, we set the value into the registry:
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TCHAR szMusicPath[MAX_PATH];
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StrCpy( szMusicPath, g_szPath );
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PathRemoveFileSpec( szMusicPath );
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PathAppend( szMusicPath, TEXT("music") );
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RegSetValueEx(hkey, TEXT("DirectMusicPath"), 0, REG_SZ, (LPBYTE)szMusicPath, ARRAYSIZE(szMusicPath));
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RegCloseKey(hkey);
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}
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CWebApp webapp;
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if ( webapp.Register(hInstance) )
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{
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webapp.Create();
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webapp.MessageLoop();
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}
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}
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// 5.) Shutdown and clean up
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if ( SUCCEEDED(hrInit) )
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{
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CoUninitialize();
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}
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return 0;
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}
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INT_PTR DlgProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
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{
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switch (uMsg)
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{
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case WM_INITDIALOG:
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{
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HWND hwndEdit = GetDlgItem(hwnd, IDC_PATH);
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SetWindowText(hwndEdit, ((*szLastUsedPath)?szLastUsedPath:szInstallPath));
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SendMessage(hwndEdit, EM_SETSEL, 0, -1);
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SetFocus(hwndEdit);
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//SHAutoComplete(hwndEdit, SHACF_FILESYSTEM | SHACF_FILESYS_ONLY);
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}
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return FALSE;
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case WM_COMMAND:
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switch ( LOWORD(wParam) )
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{
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case IDOK:
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// update szPath
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GetDlgItemText(hwnd, IDC_PATH, szLastUsedPath, ARRAYSIZE(szLastUsedPath));
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// fall through
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case IDCANCEL:
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EndDialog(hwnd, LOWORD(wParam));
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break;
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case IDC_BROWSE:
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{
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BROWSEINFO bi = {0};
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LPITEMIDLIST pidl;
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TCHAR szName[1024];
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HINSTANCE hinst = GetModuleHandle(NULL);
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LoadString(hinst, IDS_BROWSETEXT, szName, ARRAYSIZE(szName));
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bi.hwndOwner = hwnd;
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bi.pszDisplayName = szName;
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bi.lpszTitle = szName;
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bi.ulFlags = BIF_RETURNONLYFSDIRS | BIF_USENEWUI;
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pidl = SHBrowseForFolder(&bi);
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if ( NULL != pidl )
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{
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SHGetPathFromIDList(pidl, szLastUsedPath);
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ILFree(pidl);
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SetDlgItemText(hwnd, IDC_PATH, szLastUsedPath);
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SetFocus(GetDlgItem(hwnd, IDOK));
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}
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}
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break;
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default:
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return 0;
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}
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break;
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default:
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return 0;
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}
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return 1;
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}
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// GetPathFromReg
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// Reads a path from the "SourcePath" value of the given HKEY and subkey and expandes
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// environment variables if needed.
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BOOL GetPathFromReg(HKEY hkey, LPTSTR szSubKey, LPTSTR szPath, int cch)
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{
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DWORD result;
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result = RegOpenKeyEx(hkey, szSubKey, 0, KEY_QUERY_VALUE, &hkey);
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if ( ERROR_SUCCESS == result )
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{
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DWORD dwType;
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DWORD dwSize = cch;
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result = RegQueryValueEx( hkey, TEXT("SourcePath"), 0, &dwType, (LPBYTE)szPath, &dwSize );
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if ( ERROR_SUCCESS == result )
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{
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if ( dwType == REG_EXPAND_SZ )
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{
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// Expand environment variables
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TCHAR szTemp[MAX_PATH];
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ExpandEnvironmentStrings( szPath, szTemp, ARRAYSIZE(szTemp) );
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StrCpyN( szPath, szTemp, cch );
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}
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else if ( dwType != REG_SZ )
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{
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// set to any old error value.
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result = ERROR_MORE_DATA;
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// NULL out whatever bogus data we read
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*szPath = NULL;
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}
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}
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else
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{
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// ensure NULL termination if QueryValue fails
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*szPath = NULL;
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}
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RegCloseKey(hkey);
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}
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return (ERROR_SUCCESS == result);
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}
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// GetCDRomPaths
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// Gets a double null terminated list of CDRom paths. Excludes the CD Rom if it is already listed
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// in the InstallPath or LastUsed path.
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BOOL GetCDRomPaths(LPTSTR szzPaths, int cch)
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{
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int i;
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TCHAR szDrive[4] = TEXT("A:\\");
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DWORD dwDrives = GetLogicalDrives();
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DWORD dwMask;
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// reserve one space for final NULL character
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cch--;
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for ( i=0, dwMask=1; i<26; i++, dwMask*=2 )
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{
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if ( dwDrives & dwMask )
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{
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szDrive[0] = TEXT('A') + i;
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if ( GetDriveType(szDrive) == DRIVE_CDROM )
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{
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if ( (0!=StrCmpI(szDrive, szInstallPath)) && (0!=StrCmpI(szDrive, szLastUsedPath)))
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{
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int cchSzDrive = lstrlen(szDrive) + 1;
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StrCpyN(szzPaths, szDrive, cch);
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cch -= cchSzDrive;
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szzPaths += cchSzDrive;
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*szzPaths = 0;
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}
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}
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}
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}
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return TRUE;
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}
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// CheckAllPaths
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// Check all paths in szPathList to see if the discover tour can be found.
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// If found the path to the tour is placed in g_szPath.
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BOOL CheckAllPaths(BOOL bCDOnly)
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{
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if ( !bCDOnly )
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{
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if ( CheckForTour(szLastUsedPath) || CheckForTour(szInstallPath) )
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{
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return TRUE;
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}
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}
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LPTSTR psz = szzCDRoms;
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while (*psz)
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{
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if (CheckForTour(psz))
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{
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return TRUE;
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}
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psz += lstrlen(psz) + 1;
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}
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return FALSE;
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}
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// CheckForTour
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// Check the given path for the discover tour. If found, the tour path is placed into g_szPath.
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BOOL CheckForTour(LPTSTR pszPath)
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{
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BOOL bDiscoverFound;
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// The user is expected to select their installation path, from there we look for
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// the discover directory:
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PathCombine(g_szPath, pszPath, TEXT("Discover\\default.htm"));
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bDiscoverFound = PathFileExists(g_szPath);
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// In case the user is one step ahead of us and actually selected the discover
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// tour directory we search for the tour in the given location also:
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if ( !bDiscoverFound )
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{
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PathCombine(g_szPath, pszPath, TEXT("default.htm"));
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bDiscoverFound = PathFileExists(g_szPath);
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}
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return bDiscoverFound;
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}
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