794 lines
23 KiB
C++
794 lines
23 KiB
C++
// SCRNSAVE.C -- skeleton for screen saver application
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// 4/5/94 francish merged NT and Win4 saver code, folded in SCRNSAVE.SCR
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// - 3/14/96: marcfo Pulled this file in from shell\control\scrnsave\common.
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// All changes marked with GL_SCRNSAVE.
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#define GL_SCRNSAVE 1
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#define WIN31
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#include <windows.h>
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#include <windowsx.h>
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#include "scrnsave.h"
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#include <regstr.h>
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#include <imm.h>
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#ifdef GL_SCRNSAVE
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#include "glscrnsv.h"
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#endif
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#define DBG_MSGS 0
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const TCHAR szScreenSaverKey[] = REGSTR_PATH_SCREENSAVE;
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TCHAR szPasswordActiveValue[] = REGSTR_VALUE_USESCRPASSWORD;
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const TCHAR szPasswordValue[] = REGSTR_VALUE_SCRPASSWORD;
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TCHAR szPwdDLL[] = TEXT("PASSWORD.CPL");
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CHAR szFnName[] = "VerifyScreenSavePwd"; // Proc name, must be ANSI
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TCHAR szImmDLL[] = TEXT("IMM32.DLL");
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CHAR szImmFnc[] = "ImmAssociateContext"; // Proc name, must be ANSI
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#if 0
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TCHAR szCoolSaverHacks[] = REGSTR_PATH_SETUP TEXT("\\Screen Savers");
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TCHAR szMouseThreshold[] = TEXT("Mouse Threshold");
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TCHAR szPasswordDelay[] = TEXT("Password Delay");
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#endif
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typedef BOOL(FAR PASCAL* VERIFYPWDPROC) (HWND);
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typedef HIMC(FAR PASCAL* IMMASSOCPROC) (HWND, HIMC);
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// variables declared in SCRNSAVE.H
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HINSTANCE hMainInstance = 0;
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HWND hMainWindow = 0;
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BOOL fChildPreview = FALSE;
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// other globals
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POINT ptMouse;
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BOOL fClosing = FALSE;
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BOOL fCheckingPassword = FALSE;
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HINSTANCE hInstPwdDLL = NULL;
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VERIFYPWDPROC VerifyPassword = NULL;
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static BOOL preview_like_fullscreen = FALSE;
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static UINT uShellAutoPlayQueryMessage = 0;
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HINSTANCE hInstImm = NULL;
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IMMASSOCPROC ImmFnc = NULL;
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HIMC hPrevImc = (HIMC)0L;
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static BOOL fOnWin95 = FALSE; //TRUE if on Chicago, FALSE if on Cairo
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// random junk
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DWORD dwWakeThreshold = 4; //default to slight movement
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DWORD dwPasswordDelay = 0;
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DWORD dwBlankTime = 0;
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#define MAX_PASSWORD_DELAY_IN_SECONDS (60)
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// forward declarations of internal fns
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#ifndef GL_SCRNSAVE
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// These are hooked out to glscrnsv.cxx
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static INT_PTR DoScreenSave(HWND hParent);
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static INT_PTR DoConfigBox(HWND hParent);
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#endif
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static INT_PTR DoSaverPreview(LPCTSTR szUINTHandle);
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static INT_PTR DoChangePw(LPCTSTR szUINTHandle);
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static BOOL DoPasswordCheck(HWND hParent);
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VOID LoadPwdDLL(VOID);
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VOID UnloadPwdDLL(VOID);
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// helper for time
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static DWORD GetElapsedTime(DWORD from, DWORD to)
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{
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return (to >= from) ? (to - from) : (1 + to + (((DWORD)-1) - from));
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}
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// helper to convert text to unsigned int
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static UINT_PTR
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atoui(LPCTSTR szUINT)
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{
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UINT_PTR uValue = 0;
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while ((*szUINT >= TEXT('0')) && (*szUINT <= TEXT('9')))
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uValue = ((uValue * 10) + (*szUINT++ - TEXT('0')));
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return uValue;
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}
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// Local reboot and hotkey control (on Win95)
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static void
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HogMachine(BOOL value)
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{
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BOOL dummy;
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// NT is always secure, therefore we don't need to call this on Cairo/NT
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if (fOnWin95) {
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SystemParametersInfo(SPI_SCREENSAVERRUNNING, value, &dummy, 0);
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}
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}
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// entry point (duh)
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INT_PTR PASCAL
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WinMainN(HINSTANCE hInst, HINSTANCE hPrev, LPTSTR szCmdLine, int nCmdShow)
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{
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LPCTSTR pch = szCmdLine;
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HWND hParent = 0;
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OSVERSIONINFO osvi;
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hMainInstance = hInst;
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osvi.dwOSVersionInfoSize = sizeof(osvi);
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fOnWin95 = (GetVersionEx(&osvi) && osvi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS);
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#ifdef GL_SCRNSAVE
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// the shell sends this message to the foreground window before running an
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// AutoPlay app. we return 1 to cancel autoplay if we are password protected
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if (fOnWin95) {
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uShellAutoPlayQueryMessage = RegisterWindowMessage(TEXT("QueryCancelAutoPlay"));
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} else {
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uShellAutoPlayQueryMessage = 0;
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}
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#endif
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_try
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{
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for (;;) switch (*pch) {
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case TEXT('S'):
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case TEXT('s'):
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return DoScreenSave(NULL);
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#ifdef GL_SCRNSAVE
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case TEXT('W'):
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case TEXT('w'):
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do pch++; while (*pch == TEXT(' ')); // size parameters
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return DoWindowedScreenSave(pch);
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#endif
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case TEXT('L'):
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case TEXT('l'):
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// special switch for tests such as WinBench
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// this is NOT a hack to make bechmarks look good
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// it's a hack to allow you to benchmark a screen saver
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// many bechmarking apps require the whole screen in foreground
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// which makes it hard to measure how a screensaver adds CPU load
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// you must provide a parent window (just like preview mode)
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preview_like_fullscreen = TRUE;
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case TEXT('P'):
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case TEXT('p'):
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do pch++; while (*pch == TEXT(' ')); // skip to the good stuff
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return DoSaverPreview(pch);
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case TEXT('A'):
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case TEXT('a'):
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if (!fOnWin95)
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return -1;
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do pch++; while (*pch == TEXT(' ')); // skip to the good stuff
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return DoChangePw(pch);
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case TEXT('C'):
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case TEXT('c'):
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{
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HWND hwndParent = NULL
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;
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// Look for optional parent window after the "C",
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// syntax is "C:hwnd_value"
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if (*(++pch) == TEXT(':')) {
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hwndParent = (HWND)atoui(++pch);
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}
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if (hwndParent == NULL || !IsWindow(hwndParent))
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hwndParent = GetForegroundWindow();
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return DoConfigBox(hwndParent);
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}
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case TEXT('\0'):
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return DoConfigBox(NULL);
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case TEXT(' '):
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case TEXT('-'):
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case TEXT('/'):
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pch++; // skip spaces and common switch prefixes
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break;
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default:
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return -1;
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}
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}
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_except(UnhandledExceptionFilter(GetExceptionInformation()))
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{
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// don't leave local reboot and hotkeys disabled on Win95
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HogMachine(FALSE);
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}
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}
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// default screen-saver proc, declared in SCRNSAVE.H
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// intended to be called by the consumer's ScreenSaverProc where
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// DefWindowProc would normally be called
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LRESULT WINAPI
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DefScreenSaverProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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#if DBG_MSGS
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TCHAR szBuff[80];
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wsprintf(szBuff, TEXT("** DefSSP received:\t0x%04lx 0x%08lx 0x%08lx\n"), uMsg, wParam, lParam);
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OutputDebugString(szBuff);
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#endif
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if (!fChildPreview && !fClosing) {
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switch (uMsg) {
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case WM_CLOSE:
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// Only do password check if on Windows 95. WinNT (Cairo) has
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// the password check built into the security desktop for
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// C2 compliance.
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if (fOnWin95) {
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if (!DoPasswordCheck(hWnd)) {
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GetCursorPos(&ptMouse); // re-establish
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return FALSE;
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}
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}
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#ifdef GL_SCRNSAVE
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// We need to know when we're being terminated, so we can do
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// various clean-up stuff
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SendMessage(hWnd, SS_WM_CLOSING, 0, 0);
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#endif
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break;
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case SCRM_VERIFYPW:
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if (fOnWin95)
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return (VerifyPassword ? (LRESULT)VerifyPassword(hWnd) : 1L);
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break;
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default:
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{
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POINT ptMove, ptCheck;
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if (fCheckingPassword)
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break;
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switch (uMsg) {
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case WM_SHOWWINDOW:
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if ((BOOL)wParam)
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SetCursor(NULL);
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break;
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case WM_SETCURSOR:
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SetCursor(NULL);
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return TRUE;
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case WM_MOUSEMOVE:
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GetCursorPos(&ptCheck);
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if ((ptMove.x = ptCheck.x - ptMouse.x) && (ptMove.x < 0))
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ptMove.x *= -1;
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if ((ptMove.y = ptCheck.y - ptMouse.y) && (ptMove.y < 0))
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ptMove.y *= -1;
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if (((DWORD)ptMove.x + (DWORD)ptMove.y) > dwWakeThreshold) {
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PostMessage(hWnd, WM_CLOSE, 0, 0l);
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ptMouse = ptCheck;
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}
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break;
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case WM_POWERBROADCAST:
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switch (wParam) {
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case PBT_APMRESUMECRITICAL:
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case PBT_APMRESUMESUSPEND:
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case PBT_APMRESUMESTANDBY:
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case PBT_APMRESUMEAUTOMATIC:
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// If the system is resuming from a real suspend
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// (as opposed to a failed suspend) deactivate the screensaver.
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if ((lParam & PBTF_APMRESUMEFROMFAILURE) == 0)
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goto PostClose;
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break;
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default:
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// The standard screensaver code shuts down on
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// all power broadcast messages. This doesn't
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// make much sense, but match the behavior so
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// that all screensavers operate the same way.
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goto PostClose;
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}
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break;
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case WM_POWER:
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// a critical resume does not generate a WM_POWERBROADCAST
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// to windows for some reason, but it does generate an old WM_POWER message.
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if (wParam == PWR_CRITICALRESUME)
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goto PostClose;
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break;
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case WM_ACTIVATEAPP:
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if (wParam) break;
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case WM_LBUTTONDOWN:
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case WM_MBUTTONDOWN:
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case WM_RBUTTONDOWN:
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case WM_KEYDOWN:
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case WM_SYSKEYDOWN:
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PostClose:
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PostMessage(hWnd, WM_CLOSE, 0, 0l);
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break;
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}
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}
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}
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}
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// the shell sends this message to the foreground window before running an
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// AutoPlay app. On Win95, we return 1 to cancel autoplay if we are password protected
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// On WinNT, secure screen savers run on a secure separate desktop, and will never see
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// this message, therefore, this code will never get executed.
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// BUGBUG -
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// On NT we don't want to take down the screen saver unless it is running
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// on the same desktop as the autoplay shell. There is code in the
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// NT autoplay shell that looks for this and does not run the app if
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// that is the case; however, I not positive that the uShellAutoPlayQueryMessage
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// will not go between desktops. (BradG assures me that it will not, but you
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// never know.) If secure screensavers on NT randomly close when you put
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// an autoplay cd in the drive, then this code should be examined closely.
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if ((uMsg == uShellAutoPlayQueryMessage) && uMsg) {
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PostMessage(hWnd, WM_CLOSE, 0, 0L);
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return (VerifyPassword != NULL);
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}
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return DefWindowProc(hWnd, uMsg, wParam, lParam);
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}
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// This window procedure takes care of important stuff before calling the
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// consumer's ScreenSaverProc. This helps to prevent us from getting hosed by wacky consumer code.
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LRESULT WINAPI RealScreenSaverProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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switch (uMsg) {
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case WM_CREATE:
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// screen saver does not need the IME
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if ((hInstImm = GetModuleHandle(szImmDLL)) && (ImmFnc = (IMMASSOCPROC)GetProcAddress(hInstImm, szImmFnc)))
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hPrevImc = ImmFnc(hWnd, (HIMC)0);
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GetCursorPos(&ptMouse);// establish the mouse position
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if (!fChildPreview)
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SetCursor(NULL);
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break;
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case WM_DESTROY:
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// screen saver does not need the IME
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if (hInstImm && ImmFnc && hPrevImc)
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ImmFnc(hWnd, hPrevImc);
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PostQuitMessage(0);
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break;
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case WM_SETTEXT:
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// don't let some fool change our title
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// we need to be able to use FindWindow() to find running instances
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// of full-screen windows screen savers
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// NOTE: USER slams our title in during WM_NCCREATE by calling the
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// defproc for WM_SETTEXT directly, so the initial title will get
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// there. If this ever changes, we can simply set a bypass flag
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// during WM_NCCREATE processing.
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return FALSE;
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case WM_SYSCOMMAND:
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if (!fChildPreview) {
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switch (wParam) {
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case SC_NEXTWINDOW: // no Alt-tabs
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case SC_PREVWINDOW: // no shift-alt-tabs
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case SC_SCREENSAVE: // no more screensavers
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return FALSE;
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}
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}
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break;
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case WM_HELP:
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case WM_CONTEXTMENU:
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if (fChildPreview) {
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// if we're in preview mode, pump the help stuff to our owner
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HWND hParent = GetParent(hWnd);
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if (hParent && IsWindow(hParent))
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PostMessage(hParent, uMsg, (WPARAM)hParent, lParam);
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return TRUE;
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}
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break;
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case WM_TIMER:
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if (fClosing)
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return FALSE;
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Sleep(0);
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break;
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case WM_IME_NOTIFY:
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// Eat IMN_OPENSTATUSWINDOW so that the status window
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// isn't displayed.
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if (wParam == IMN_OPENSTATUSWINDOW) {
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return 0;
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}
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break;
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case WM_MOUSEMOVE:
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case WM_LBUTTONDOWN:
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case WM_MBUTTONDOWN:
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case WM_RBUTTONDOWN:
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case WM_KEYDOWN:
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case WM_SYSKEYDOWN:
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if (fClosing)
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return DefWindowProc(hWnd, uMsg, wParam, lParam);
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break;
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case WM_PAINT:
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if (fClosing)
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return DefWindowProc(hWnd, uMsg, wParam, lParam);
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if (!fChildPreview)
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SetCursor(NULL);
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break;
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}
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return ScreenSaverProc(hWnd, uMsg, wParam, lParam);
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}
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#ifdef GL_SCRNSAVE
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void
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#else
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static void
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#endif
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InitRealScreenSave()
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{
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#if 0
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HKEY hkey;
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if (RegOpenKey(HKEY_CURRENT_USER, szCoolSaverHacks, &hkey) == ERROR_SUCCESS) {
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DWORD data, len, type;
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len = sizeof(data);
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if ((RegQueryValueEx(hkey, szMouseThreshold, NULL, &type,
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(LPBYTE)&data, &len) == ERROR_SUCCESS) && (type == REG_DWORD)) {
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dwWakeThreshold = max(dwWakeThreshold, data);
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}
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len = sizeof(data);
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if ((RegQueryValueEx(hkey, szPasswordDelay, NULL, &type,
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(LPBYTE)&data, &len) == ERROR_SUCCESS) && (type == REG_DWORD) && data) {
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data = min(MAX_PASSWORD_DELAY_IN_SECONDS, data);
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dwPasswordDelay = data * 1000;
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dwBlankTime = GetTickCount();
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}
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}
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#endif
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LoadPwdDLL();
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}
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#ifndef GL_SCRNSAVE
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static INT_PTR
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DoScreenSave(HWND hParent)
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{
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LPCTSTR pszWindowClass = TEXT("WindowsScreenSaverClass");
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LPCTSTR pszWindowTitle;
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WNDCLASS cls;
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MSG msg;
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UINT uStyle;
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UINT uExStyle;
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int ncx, ncy;
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int nx, ny;
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cls.hCursor = NULL;
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cls.hIcon = LoadIcon(hMainInstance, MAKEINTATOM(ID_APP));
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cls.lpszMenuName = NULL;
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cls.lpszClassName = pszWindowClass;
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cls.hbrBackground = GetStockObject(BLACK_BRUSH);
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cls.hInstance = hMainInstance;
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cls.style = CS_VREDRAW | CS_HREDRAW | CS_DBLCLKS | CS_OWNDC;
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cls.lpfnWndProc = RealScreenSaverProc;
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cls.cbWndExtra = 0;
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cls.cbClsExtra = 0;
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if (hParent) {
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RECT rcParent;
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GetClientRect(hParent, &rcParent);
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ncx = rcParent.right;
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ncy = rcParent.bottom;
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nx = 0;
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ny = 0;
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uStyle = WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN;
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uExStyle = 0;
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fChildPreview = TRUE;
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pszWindowTitle = TEXT("Preview"); // MUST differ from full screen
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} else {
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HWND hOther;
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#ifdef SM_CXVIRTUALSCREEN
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nx = GetSystemMetrics(SM_XVIRTUALSCREEN);
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ny = GetSystemMetrics(SM_YVIRTUALSCREEN);
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ncx = GetSystemMetrics(SM_CXVIRTUALSCREEN);
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ncy = GetSystemMetrics(SM_CYVIRTUALSCREEN);
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if (ncx == 0 || ncy == 0)
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#endif
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{
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RECT rc;
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HDC hdc = GetDC(NULL);
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GetClipBox(hdc, &rc);
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ReleaseDC(NULL, hdc);
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nx = rc.left;
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ny = rc.top;
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ncx = rc.right - rc.left;
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ncy = rc.bottom - rc.top;
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}
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uStyle = WS_POPUP | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
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uExStyle = WS_EX_TOPMOST;
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pszWindowTitle = TEXT("Screen Saver"); // MUST differ from preview
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// if there is another NORMAL screen save instance, switch to it
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hOther = FindWindow(pszWindowClass, pszWindowTitle);
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if (hOther && IsWindow(hOther)) {
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SetForegroundWindow(hOther);
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|
return 0;
|
|
}
|
|
|
|
InitRealScreenSave();
|
|
}
|
|
|
|
// the shell sends this message to the foreground window before running an
|
|
// AutoPlay app. we return 1 to cancel autoplay if we are password protected
|
|
|
|
if (fOnWin95) {
|
|
uShellAutoPlayQueryMessage = RegisterWindowMessage(TEXT("QueryCancelAutoPlay"));
|
|
} else {
|
|
uShellAutoPlayQueryMessage = 0;
|
|
}
|
|
|
|
if (RegisterClass(&cls)) {
|
|
hMainWindow = CreateWindowEx(uExStyle, pszWindowClass, pszWindowTitle,
|
|
uStyle, nx, ny, ncx, ncy, hParent, (HMENU)NULL,
|
|
hMainInstance, (LPVOID)NULL);
|
|
}
|
|
|
|
if (hMainWindow) {
|
|
if (!fChildPreview)
|
|
SetForegroundWindow(hMainWindow);
|
|
|
|
while (GetMessage(&msg, NULL, 0, 0)) {
|
|
TranslateMessage(&msg);
|
|
DispatchMessage(&msg);
|
|
}
|
|
}
|
|
|
|
UnloadPwdDLL();// free password-handling DLL if loaded
|
|
|
|
return msg.wParam;
|
|
}
|
|
#endif
|
|
|
|
|
|
static INT_PTR DoSaverPreview(LPCTSTR szUINTHandle)
|
|
{
|
|
HWND hParent = (HWND)atoui(szUINTHandle);// get parent handle from string
|
|
|
|
// only preview on a valid parent window (NOT full screen)
|
|
return ((hParent && IsWindow(hParent)) ? DoScreenSave(hParent) : -1);
|
|
}
|
|
|
|
|
|
#ifndef GL_SCRNSAVE
|
|
|
|
static INT_PTR DoConfigBox(HWND hParent)
|
|
{
|
|
// let the consumer register any special controls for the dialog
|
|
if (!RegisterDialogClasses(hMainInstance))
|
|
return FALSE;
|
|
|
|
return DialogBox(hMainInstance, MAKEINTRESOURCE(DLG_SCRNSAVECONFIGURE),
|
|
hParent, (DLGPROC)ScreenSaverConfigureDialog);
|
|
}
|
|
#endif
|
|
|
|
|
|
static INT_PTR DoChangePw(LPCTSTR szUINTHandle)
|
|
{
|
|
// get parent handle from string
|
|
HWND hParent = (HWND)atoui(szUINTHandle);
|
|
|
|
if (!hParent || !IsWindow(hParent))
|
|
hParent = GetForegroundWindow();
|
|
|
|
ScreenSaverChangePassword(hParent);// allow the library to be hooked
|
|
return 0;
|
|
}
|
|
|
|
static const TCHAR szMprDll[] = TEXT("MPR.DLL"); // not to be localized
|
|
static const TCHAR szProviderName[] = TEXT("SCRSAVE"); // not to be localized
|
|
|
|
#ifdef UNICODE
|
|
static const CHAR szPwdChangePW[] = "PwdChangePasswordW"; // not to be localized
|
|
#else
|
|
static const CHAR szPwdChangePW[] = "PwdChangePasswordA"; // not to be localized
|
|
#endif
|
|
|
|
// bogus prototype
|
|
typedef DWORD(FAR PASCAL* PWCHGPROC)(LPCTSTR, HWND, DWORD, LPVOID);
|
|
|
|
|
|
void WINAPI ScreenSaverChangePassword(HWND hParent)
|
|
{
|
|
HINSTANCE mpr = LoadLibrary(szMprDll);
|
|
|
|
if (mpr) {
|
|
// netland hasn't cracked MNRENTRY yet
|
|
PWCHGPROC pwd = (PWCHGPROC)GetProcAddress(mpr, szPwdChangePW);
|
|
if (pwd)
|
|
pwd(szProviderName, hParent, 0, NULL);
|
|
|
|
FreeLibrary(mpr);
|
|
}
|
|
}
|
|
|
|
|
|
static BOOL DoPasswordCheck(HWND hParent)
|
|
{
|
|
// don't reenter and don't check when we've already decided
|
|
if (fCheckingPassword || fClosing)
|
|
return FALSE;
|
|
|
|
if (VerifyPassword) {
|
|
static DWORD lastcheck = (DWORD)-1;
|
|
DWORD curtime = GetTickCount();
|
|
MSG msg;
|
|
|
|
if (dwPasswordDelay && (GetElapsedTime(dwBlankTime, curtime) < dwPasswordDelay)) {
|
|
fClosing = TRUE;
|
|
goto _didcheck;
|
|
}
|
|
|
|
// no rapid checking...
|
|
if ((lastcheck != (DWORD)-1) && (GetElapsedTime(lastcheck, curtime) < 200)) {
|
|
goto _didcheck;
|
|
}
|
|
|
|
fCheckingPassword = TRUE;// do the check
|
|
|
|
#ifdef GL_SCRNSAVE
|
|
// Put ss in idle mode during password dialog processing
|
|
SendMessage(hParent, SS_WM_IDLE, SS_IDLE_ON, 0L);
|
|
#endif
|
|
|
|
// flush WM_TIMER messages before putting up the dialog
|
|
PeekMessage(&msg, hParent, WM_TIMER, WM_TIMER, PM_REMOVE | PM_NOYIELD);
|
|
PeekMessage(&msg, hParent, WM_TIMER, WM_TIMER, PM_REMOVE | PM_NOYIELD);
|
|
|
|
// call the password verify proc
|
|
fClosing = (BOOL)SendMessage(hParent, SCRM_VERIFYPW, 0, 0L);
|
|
|
|
fCheckingPassword = FALSE;
|
|
|
|
#ifdef GL_SCRNSAVE
|
|
SendMessage(hParent, SS_WM_IDLE, SS_IDLE_OFF, 0L);// Restore normal display mode
|
|
#endif
|
|
|
|
if (!fClosing)
|
|
SetCursor(NULL);
|
|
|
|
lastcheck = GetTickCount();// curtime may be outdated by now
|
|
} else {
|
|
// passwords disabled or unable to load handler DLL, always allow exit
|
|
fClosing = TRUE;
|
|
}
|
|
|
|
_didcheck:
|
|
return fClosing;
|
|
}
|
|
|
|
|
|
// stolen from the CRT, used to shirink our code
|
|
int _stdcall DummyEntry(void)
|
|
{
|
|
int i;
|
|
STARTUPINFO si;
|
|
LPTSTR pszCmdLine = GetCommandLine();
|
|
|
|
if (*pszCmdLine == TEXT('\"')) {
|
|
/*
|
|
* Scan, and skip over, subsequent characters until another double-quote or a null is encountered.
|
|
*/
|
|
while (*(pszCmdLine = CharNext(pszCmdLine)) && (*pszCmdLine != TEXT('\"')));
|
|
/*
|
|
* If we stopped on a double-quote (usual case), skip over it.
|
|
*/
|
|
if (*pszCmdLine == TEXT('\"'))
|
|
pszCmdLine++;
|
|
} else {
|
|
while ((UINT)*pszCmdLine > (UINT)TEXT(' '))
|
|
pszCmdLine = CharNext(pszCmdLine);
|
|
}
|
|
|
|
/*
|
|
* Skip past any white space preceeding the second token.
|
|
*/
|
|
while (*pszCmdLine && ((UINT)*pszCmdLine <= (UINT)TEXT(' '))) {
|
|
pszCmdLine = CharNext(pszCmdLine);
|
|
}
|
|
|
|
si.dwFlags = 0;
|
|
GetStartupInfo(&si);
|
|
|
|
i = (int)WinMainN(GetModuleHandle(NULL), NULL, pszCmdLine,
|
|
si.dwFlags & STARTF_USESHOWWINDOW ? si.wShowWindow : SW_SHOWDEFAULT);
|
|
|
|
ExitProcess(i);
|
|
return i;// We never comes here.
|
|
}
|
|
|
|
|
|
// main() entry point to satisfy old NT screen savers
|
|
void _cdecl main(int argc, char* argv[]) {
|
|
DummyEntry();
|
|
}
|
|
|
|
|
|
// WinMain() entry point to satisfy old NT screen savers
|
|
int PASCAL WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int nCmdShow) {
|
|
DummyEntry();
|
|
return 0;
|
|
|
|
// reference unreferenced parameters
|
|
(void)hInst;
|
|
(void)hPrev;
|
|
(void)szCmdLine;
|
|
(void)nCmdShow;
|
|
}
|
|
|
|
|
|
VOID LoadPwdDLL(VOID)
|
|
{
|
|
HKEY hKey;
|
|
|
|
if (!fOnWin95)
|
|
return;
|
|
|
|
if (hInstPwdDLL)
|
|
UnloadPwdDLL();
|
|
|
|
// look in registry to see if password turned on, otherwise don't
|
|
// bother to load password handler DLL
|
|
if (RegOpenKey(HKEY_CURRENT_USER, szScreenSaverKey, &hKey) == ERROR_SUCCESS) {
|
|
DWORD dwVal, dwSize = sizeof(dwVal);
|
|
|
|
if ((RegQueryValueEx(hKey, szPasswordActiveValue, NULL, NULL, (BYTE*)&dwVal, &dwSize) == ERROR_SUCCESS)
|
|
&& dwVal) {
|
|
// try to load the DLL that contains password proc.
|
|
hInstPwdDLL = LoadLibrary(szPwdDLL);
|
|
if (hInstPwdDLL) {
|
|
VerifyPassword = (VERIFYPWDPROC)GetProcAddress(hInstPwdDLL, szFnName);
|
|
if (VerifyPassword)
|
|
HogMachine(TRUE);
|
|
else
|
|
UnloadPwdDLL();
|
|
}
|
|
}
|
|
|
|
RegCloseKey(hKey);
|
|
}
|
|
}
|
|
|
|
|
|
VOID UnloadPwdDLL(VOID)
|
|
{
|
|
if (!fOnWin95)
|
|
return;
|
|
|
|
if (hInstPwdDLL) {
|
|
FreeLibrary(hInstPwdDLL);
|
|
hInstPwdDLL = NULL;
|
|
|
|
if (VerifyPassword) {
|
|
VerifyPassword = NULL;
|
|
HogMachine(FALSE);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// compatbility stuff (to make porting easier)
|
|
TCHAR szAppName[APPNAMEBUFFERLEN];
|
|
TCHAR szName[TITLEBARNAMELEN];
|
|
TCHAR szIniFile[MAXFILELEN];
|
|
TCHAR szScreenSaver[22];
|
|
TCHAR szHelpFile[MAXFILELEN];
|
|
TCHAR szNoHelpMemory[BUFFLEN];
|
|
|
|
// Quick fix for old screen savers that don't know about context sensitive help
|
|
UINT MyHelpMessage = WM_HELP;
|