/*
- Screen saver library by Anders Norlander <anorland@hem2.passagen.se>
+
Screen saver library by Anders Norlander <anorland@hem2.passagen.se>
- This library is (hopefully) compatible with Microsoft's
- screen saver library.
+ This library is (hopefully) compatible with Microsoft's
+ screen saver library.
- This is public domain software.
+ This is public domain software.
*/
+
#include <windows.h>
#include <scrnsave.h>
#include <regstr.h>
#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;
+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 int ISSPACE(char c)
{
- return (c == ' ' || c == '\t');
+ 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;
+ 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 CmdLine, int nCmdShow)
{
- LPSTR p;
- OSVERSIONINFO vi;
+ LPSTR p;
+ OSVERSIONINFO vi;
- /* initialize */
- hMainInstance = hInst;
+ /* 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)
+ 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)
+ 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)
+ 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);
+ hPwdLib = LoadLibrary(TEXT("PASSWORD.CPL"));
+ if (hPwdLib)
+ VerifyScreenSavePwd = GetProcAddress(hPwdLib, szVerifyPassword);
}
- RegCloseKey(hKey);
+
+ RegCloseKey(hKey);
}
}
- /* parse arguments */
- for (p = CmdLine; *p; p++)
+ /* parse arguments */
+ for (p = CmdLine; *p; p++)
{
- switch (*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:
- break;
+ 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:
+ break;
}
}
- LaunchConfig();
- return 0;
+
+ 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);
-}
+ /* 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;
+ 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);
+ /* don't allow other tasks to get into the foreground */
+ if (w95 && !fChildPreview)
+ SystemParametersInfo(SPI_SCREENSAVERRUNNING, TRUE, &foo, 0);
- msg.wParam = 0;
+ msg.wParam = 0;
- /* register classes, both user defined and classes used by screen saver
- library */
- if (!RegisterClasses())
+ /* register classes, both user defined and classes used by screen saver
+ library */
+ if (!RegisterClasses())
{
- MessageBox(NULL, TEXT("RegisterClasses() failed"), NULL, MB_ICONHAND);
- goto restore;
+ 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)
+ /* a slightly different approach needs to be used when displaying
+ in a preview window */
+ if (hParent)
{
- style = WS_CHILD;
- GetClientRect(hParent, &rc);
+ style = WS_CHILD;
+ GetClientRect(hParent, &rc);
}
- else
+ else
{
- style = WS_POPUP;
- rc.right = GetSystemMetrics(SM_CXSCREEN);
- rc.bottom = GetSystemMetrics(SM_CYSCREEN);
- style |= WS_VISIBLE;
+ 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);
+ /* 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)
+ /* display window and start pumping messages */
+ if (hMainWindow)
{
- UpdateWindow(hMainWindow);
- ShowWindow(hMainWindow, SW_SHOW);
+ UpdateWindow(hMainWindow);
+ ShowWindow(hMainWindow, SW_SHOW);
- while (GetMessage(&msg, NULL, 0, 0) == TRUE)
+ while (GetMessage(&msg, NULL, 0, 0) == TRUE)
{
- TranslateMessage(&msg);
- DispatchMessage(&msg);
+ TranslateMessage(&msg);
+ DispatchMessage(&msg);
}
}
restore:
- /* restore system */
- if (w95 && !fChildPreview)
- SystemParametersInfo(SPI_SCREENSAVERRUNNING, FALSE, &foo, 0);
- FreeLibrary(hPwdLib);
- return msg.wParam;
+ /* 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)
+static LRESULT WINAPI SysScreenSaverProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
- switch (msg)
+ 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;
+ 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);
+
+ return ScreenSaverProc(hWnd, msg, wParam, lParam);
}
-LONG WINAPI DefScreenSaverProc(HWND hWnd, UINT msg,
- WPARAM wParam, LPARAM 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);
+ /* don't do any special processing when in preview mode */
+ if (fChildPreview || closing)
+ return DefWindowProc(hWnd, msg, wParam, lParam);
- switch (msg)
+ 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;
+ 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);
+
+ return DefWindowProc(hWnd, msg, wParam, lParam);
}
static void TerminateScreenSaver(HWND hWnd)
{
- /* don't allow recursion */
- if (checking_pwd || closing)
- return;
+ /* don't allow recursion */
+ if (checking_pwd || closing)
+ return;
- /* verify password */
- if (VerifyScreenSavePwd)
+ /* verify password */
+ if (VerifyScreenSavePwd)
{
- checking_pwd = TRUE;
- closing = SendMessage(hWnd, SCRM_VERIFYPW, 0, 0);
- checking_pwd = FALSE;
+ checking_pwd = TRUE;
+ closing = SendMessage(hWnd, SCRM_VERIFYPW, 0, 0);
+ checking_pwd = FALSE;
}
- else
- closing = TRUE;
+ else
+ closing = TRUE;
- /* are we closing? */
- if (closing)
+ /* are we closing? */
+ if (closing)
{
- DestroyWindow(hWnd);
+ DestroyWindow(hWnd);
}
- else
- GetCursorPos(&pt_orig); /* if not: get new mouse position */
+ else
+ GetCursorPos(&pt_orig); /* if not: get new mouse position */
}
/*
- Register screen saver window class and call user
- supplied hook.
+ Register screen saver window class and call user
+ supplied hook.
*/
static BOOL RegisterClasses(void)
{
- WNDCLASS cls;
- ZeroMemory(&cls, sizeof(cls));
- cls.hCursor = NULL;
- cls.hIcon = LoadIcon(hMainInstance, MAKEINTATOM(ID_APP));
- cls.lpszMenuName = NULL;
- cls.lpszClassName = CLASS_SCRNSAVE;
- cls.hbrBackground = NULL; //(HBRUSH)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);
+ WNDCLASS cls;
+ ZeroMemory(&cls, sizeof(cls));
+ cls.hCursor = NULL;
+ cls.hIcon = LoadIcon(hMainInstance, MAKEINTATOM(ID_APP));
+ cls.lpszMenuName = NULL;
+ cls.lpszClassName = CLASS_SCRNSAVE;
+ cls.hbrBackground = NULL; //(HBRUSH)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)
+ /* load Master Password Router (MPR) */
+ HINSTANCE hMpr = LoadLibrary(TEXT("MPR.DLL"));
+
+ if (hMpr)
{
- CHPWDPROC ChangePassword;
- ChangePassword = (CHPWDPROC) GetProcAddress(hMpr, szPwdChangePassword);
+ CHPWDPROC ChangePassword;
+ ChangePassword = (CHPWDPROC) GetProcAddress(hMpr, szPwdChangePassword);
- /* change password for screen saver provider */
- if (ChangePassword)
- ChangePassword(TEXT("SCRSAVE"), hParent, 0, NULL);
+ /* change password for screen saver provider */
+ if (ChangePassword)
+ ChangePassword(TEXT("SCRSAVE"), hParent, 0, NULL);
- FreeLibrary(hMpr);
+ FreeLibrary(hMpr);
}
}
-
projects / reactos.git / blobdiff