diff options
Diffstat (limited to 'winsup/w32api/lib/scrnsave.c')
| -rw-r--r-- | winsup/w32api/lib/scrnsave.c | 406 |
1 files changed, 0 insertions, 406 deletions
diff --git a/winsup/w32api/lib/scrnsave.c b/winsup/w32api/lib/scrnsave.c deleted file mode 100644 index ddad884..0000000 --- a/winsup/w32api/lib/scrnsave.c +++ /dev/null @@ -1,406 +0,0 @@ -/* - Screen saver library by Anders Norlander <anorland@hem2.passagen.se> - - This library is (hopefully) compatible with Microsoft's - screen saver library. - - This is public domain software. - - */ -#include <windows.h> -#include <scrnsave.h> -#include <regstr.h> - -/* screen saver window class */ -#define CLASS_SCRNSAVE TEXT("WindowsScreenSaverClass") - -/* globals */ -HWND hMainWindow = NULL; -BOOL fChildPreview = FALSE; -HINSTANCE hMainInstance; -TCHAR szName[TITLEBARNAMELEN]; -TCHAR szAppName[APPNAMEBUFFERLEN]; -TCHAR szIniFile[MAXFILELEN]; -TCHAR szScreenSaver[22]; -TCHAR szHelpFile[MAXFILELEN]; -TCHAR szNoHelpMemory[BUFFLEN]; -UINT MyHelpMessage; - -/* local house keeping */ -static HINSTANCE hPwdLib = NULL; -static POINT pt_orig; -static BOOL checking_pwd = FALSE; -static BOOL closing = FALSE; -static BOOL w95 = FALSE; - -typedef BOOL (WINAPI *VERIFYPWDPROC)(HWND); -typedef DWORD (WINAPI *CHPWDPROC)(LPCTSTR, HWND, DWORD, PVOID); -static VERIFYPWDPROC VerifyScreenSavePwd = NULL; - -/* function names */ -#define szVerifyPassword "VerifyScreenSavePwd" - -#ifdef UNICODE -#define szPwdChangePassword "PwdChangePasswordW" -#else -#define szPwdChangePassword "PwdChangePasswordA" -#endif - -static void TerminateScreenSaver(HWND hWnd); -static BOOL RegisterClasses(void); -static LRESULT WINAPI SysScreenSaverProc(HWND,UINT,WPARAM,LPARAM); -static int LaunchScreenSaver(HWND hParent); -static void LaunchConfig(void); - -static int ISSPACE(char c) -{ - return (c == ' ' || c == '\t'); -} - -#define ISNUM(c) ((c) >= '0' && c <= '9') -static unsigned long -_toul(const char *s) -{ - unsigned long res; - unsigned long n; - const char *p; - for (p = s; *p; p++) - if (!ISNUM(*p)) break; - p--; - res = 0; - for (n = 1; p >= s; p--, n *= 10) - res += (*p - '0') * n; - return res; -} - -/* screen saver entry point */ -int APIENTRY WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, - LPSTR CmdLine, int nCmdShow) -{ - LPSTR p; - OSVERSIONINFO vi; - - /* initialize */ - hMainInstance = hInst; - - vi.dwOSVersionInfoSize = sizeof(vi); - GetVersionEx(&vi); - /* check if we are going to check for passwords */ - if (vi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) - { - HKEY hKey; - /* we are using windows 95 */ - w95 = TRUE; - if (RegOpenKey(HKEY_CURRENT_USER, REGSTR_PATH_SCREENSAVE ,&hKey) == - ERROR_SUCCESS) - { - DWORD check_pwd; - DWORD size = sizeof(DWORD); - DWORD type; - LONG res; - res = RegQueryValueEx(hKey, REGSTR_VALUE_USESCRPASSWORD, - NULL, &type, (PBYTE) &check_pwd, &size); - if (check_pwd && res == ERROR_SUCCESS) - { - hPwdLib = LoadLibrary(TEXT("PASSWORD.CPL")); - if (hPwdLib) - VerifyScreenSavePwd = GetProcAddress(hPwdLib, szVerifyPassword); - } - RegCloseKey(hKey); - } - } - - /* parse arguments */ - for (p = CmdLine; *p; p++) - { - switch (*p) - { - case 'S': - case 's': - /* start screen saver */ - return LaunchScreenSaver(NULL); - - case 'P': - case 'p': - { - /* start screen saver in preview window */ - HWND hParent; - fChildPreview = TRUE; - while (ISSPACE(*++p)); - hParent = (HWND) _toul(p); - if (hParent && IsWindow(hParent)) - return LaunchScreenSaver(hParent); - } - return 0; - - case 'C': - case 'c': - /* display configure dialog */ - LaunchConfig(); - return 0; - - case 'A': - case 'a': - { - /* change screen saver password */ - HWND hParent; - while (ISSPACE(*++p)); - hParent = (HWND) _toul(p); - if (!hParent || !IsWindow(hParent)) - hParent = GetForegroundWindow(); - ScreenSaverChangePassword(hParent); - } - return 0; - - case '-': - case '/': - case ' ': - default: - } - } - LaunchConfig(); - return 0; -} - -static void LaunchConfig(void) -{ - /* FIXME: should this be called */ - RegisterDialogClasses(hMainInstance); - /* display configure dialog */ - DialogBox(hMainInstance, MAKEINTRESOURCE(DLG_SCRNSAVECONFIGURE), - GetForegroundWindow(), (DLGPROC) ScreenSaverConfigureDialog); -} - - -static int LaunchScreenSaver(HWND hParent) -{ - BOOL foo; - UINT style; - RECT rc; - MSG msg; - - /* don't allow other tasks to get into the foreground */ - if (w95 && !fChildPreview) - SystemParametersInfo(SPI_SCREENSAVERRUNNING, TRUE, &foo, 0); - - msg.wParam = 0; - - /* register classes, both user defined and classes used by screen saver - library */ - if (!RegisterClasses()) - { - MessageBox(NULL, TEXT("RegisterClasses() failed"), NULL, MB_ICONHAND); - goto restore; - } - - /* a slightly different approach needs to be used when displaying - in a preview window */ - if (hParent) - { - style = WS_CHILD; - GetClientRect(hParent, &rc); - } - else - { - style = WS_POPUP; - rc.right = GetSystemMetrics(SM_CXSCREEN); - rc.bottom = GetSystemMetrics(SM_CYSCREEN); - style |= WS_VISIBLE; - } - - /* create main screen saver window */ - hMainWindow = CreateWindowEx(hParent ? 0 : WS_EX_TOPMOST, CLASS_SCRNSAVE, - TEXT("SCREENSAVER"), style, - 0, 0, rc.right, rc.bottom, hParent, NULL, - hMainInstance, NULL); - - /* display window and start pumping messages */ - if (hMainWindow) - { - UpdateWindow(hMainWindow); - ShowWindow(hMainWindow, SW_SHOW); - - while (GetMessage(&msg, NULL, 0, 0) == TRUE) - { - TranslateMessage(&msg); - DispatchMessage(&msg); - } - } - -restore: - /* restore system */ - if (w95 && !fChildPreview) - SystemParametersInfo(SPI_SCREENSAVERRUNNING, FALSE, &foo, 0); - FreeLibrary(hPwdLib); - return msg.wParam; -} - -/* this function takes care of *must* do tasks, like terminating - screen saver */ -static LRESULT WINAPI SysScreenSaverProc(HWND hWnd, UINT msg, - WPARAM wParam, LPARAM lParam) -{ - switch (msg) - { - case WM_CREATE: - if (!fChildPreview) - SetCursor(NULL); - /* mouse is not supposed to move from this position */ - GetCursorPos(&pt_orig); - break; - case WM_DESTROY: - PostQuitMessage(0); - break; - case WM_TIMER: - if (closing) - return 0; - break; - case WM_PAINT: - if (closing) - return DefWindowProc(hWnd, msg, wParam, lParam); - break; - case WM_SYSCOMMAND: - if (!fChildPreview) - switch (wParam) - { - case SC_CLOSE: - case SC_SCREENSAVE: - case SC_NEXTWINDOW: - case SC_PREVWINDOW: - return FALSE; - } - break; - case WM_MOUSEMOVE: - case WM_LBUTTONDOWN: - case WM_RBUTTONDOWN: - case WM_MBUTTONDOWN: - case WM_KEYDOWN: - case WM_SYSKEYDOWN: - case WM_NCACTIVATE: - case WM_ACTIVATE: - case WM_ACTIVATEAPP: - if (closing) - return DefWindowProc(hWnd, msg, wParam, lParam); - break; - } - return ScreenSaverProc(hWnd, msg, wParam, lParam); -} - -LONG WINAPI DefScreenSaverProc(HWND hWnd, UINT msg, - WPARAM wParam, LPARAM lParam) -{ - /* don't do any special processing when in preview mode */ - if (fChildPreview || closing) - return DefWindowProc(hWnd, msg, wParam, lParam); - - switch (msg) - { - case WM_CLOSE: - TerminateScreenSaver(hWnd); - /* do NOT pass this to DefWindowProc; it will terminate even if - an invalid password was given. - */ - return 0; - case SCRM_VERIFYPW: - /* verify password or return TRUE if password checking is turned off */ - if (VerifyScreenSavePwd) - return VerifyScreenSavePwd(hWnd); - else - return TRUE; - case WM_SETCURSOR: - if (checking_pwd) - break; - SetCursor(NULL); - return TRUE; - case WM_NCACTIVATE: - case WM_ACTIVATE: - case WM_ACTIVATEAPP: - if (wParam != FALSE) - break; - case WM_MOUSEMOVE: - { - POINT pt; - GetCursorPos(&pt); - if (pt.x == pt_orig.x && pt.y == pt_orig.y) - break; - } - case WM_LBUTTONDOWN: - case WM_RBUTTONDOWN: - case WM_MBUTTONDOWN: - case WM_KEYDOWN: - case WM_SYSKEYDOWN: - /* try to terminate screen saver */ - if (!checking_pwd) - PostMessage(hWnd, WM_CLOSE, 0, 0); - break; - } - return DefWindowProc(hWnd, msg, wParam, lParam); -} - -static void TerminateScreenSaver(HWND hWnd) -{ - /* don't allow recursion */ - if (checking_pwd || closing) - return; - - /* verify password */ - if (VerifyScreenSavePwd) - { - checking_pwd = TRUE; - closing = SendMessage(hWnd, SCRM_VERIFYPW, 0, 0); - checking_pwd = FALSE; - } - else - closing = TRUE; - - /* are we closing? */ - if (closing) - { - DestroyWindow(hWnd); - } - else - GetCursorPos(&pt_orig); /* if not: get new mouse position */ -} - -/* - Register screen saver window class and call user - supplied hook. - */ -static BOOL RegisterClasses(void) -{ - WNDCLASS cls; - - cls.hCursor = NULL; - cls.hIcon = LoadIcon(hMainInstance, MAKEINTATOM(ID_APP)); - cls.lpszMenuName = NULL; - cls.lpszClassName = CLASS_SCRNSAVE; - cls.hbrBackground = GetStockObject(BLACK_BRUSH); - cls.hInstance = hMainInstance; - cls.style = CS_VREDRAW | CS_HREDRAW | CS_SAVEBITS | CS_PARENTDC; - cls.lpfnWndProc = (WNDPROC) SysScreenSaverProc; - cls.cbWndExtra = 0; - cls.cbClsExtra = 0; - - if (!RegisterClass(&cls)) - return FALSE; - - return RegisterDialogClasses(hMainInstance); -} - -void WINAPI ScreenSaverChangePassword(HWND hParent) -{ - /* load Master Password Router (MPR) */ - HINSTANCE hMpr = LoadLibrary(TEXT("MPR.DLL")); - - if (hMpr) - { - CHPWDPROC ChangePassword; - ChangePassword = (CHPWDPROC) GetProcAddress(hMpr, szPwdChangePassword); - - /* change password for screen saver provider */ - if (ChangePassword) - ChangePassword(TEXT("SCRSAVE"), hParent, 0, NULL); - - FreeLibrary(hMpr); - } -} |