199 lines
8.3 KiB
C
199 lines
8.3 KiB
C
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/*****************************************************************************\
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* *
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* scrnsave.h Windows NT 3.1 screensaver defines and definitions. *
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* *
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* Version 1.0 *
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* *
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* NOTE: windows.h must be #included first *
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* *
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* Windows NT NOTE: (Differences from Win 3.1 Screensavers) *
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* *
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* All Screensavers are required to have a Description string *
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* of no more than 25 chars for display by the Control Panel's *
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* Desktop applet. This is string 1 in the resource string *
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* table of the Windows 32-bit screen saver .SCR (.EXE) file. *
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* *
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* Passwords for Windows NT Screen Savers are handled by the *
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* Winlogon process. If the registry value: *
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* *
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* HKEY_CURRENT_USER\Control Panel\Desktop\ScreenSaverIsSecure *
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* *
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* is nonzero, Winlogon will ask for the User's login password *
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* before allowing the Screen Saver to exit. All password data *
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* and dialogs have been removed from individual Screensavers. *
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* *
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* *
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* Copyright (c) 1992-1999, Microsoft Corp. All rights reserved. *
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* *
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\*****************************************************************************/
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#ifndef _INC_SCRNSAVE
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#pragma option push -b -a8 -pc -A- /*P_O_Push*/
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#define _INC_SCRNSAVE
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#if _MSC_VER > 1000
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#pragma once
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#endif
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#include <pshpack1.h> /* Assume byte packing throughout */
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#ifdef __cplusplus
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extern "C" { /* Assume C declarations for C++ */
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#endif /* __cplusplus */
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/* MANDATORY string required in .RC file
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* This string should contain a less than 25 char name/description of the
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* screen saver. This string is what will be seen by the user in the Control
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* Panel's Desktop applet screen saver listbox.
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*/
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#define IDS_DESCRIPTION 1
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/* Icon resource ID.
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*
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* This should be the first icon used and must have this resource number.
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* This is needed as the first icon in the file will be grabbed
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*/
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#define ID_APP 100
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#define DLG_SCRNSAVECONFIGURE 2003
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#define idsIsPassword 1000
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#define idsIniFile 1001
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#define idsScreenSaver 1002
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#define idsPassword 1003
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#define idsDifferentPW 1004
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#define idsChangePW 1005
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#define idsBadOldPW 1006
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#define idsAppName 1007
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#define idsNoHelpMemory 1008
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#define idsHelpFile 1009
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#define idsDefKeyword 1010
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/* This function is the Window Procedure for the screen saver. It is
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* up to the programmer to handle any of the messages that wish to be
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* interpretted. Any unused messages are then passed back to
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* DefScreenSaverProc if desired which will take default action on any
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* unprocessed message...
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*/
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#ifdef UNICODE
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LRESULT WINAPI ScreenSaverProcW (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
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# define ScreenSaverProc ScreenSaverProcW
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#else
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LRESULT WINAPI ScreenSaverProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
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#endif
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/* This function performs default message processing. Currently handles
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* the following messages:
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*
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* WM_SYSCOMMAND: return FALSE if wParam is SC_SCREENSAVE or SC_CLOSE
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*
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* WM_DESTROY: PostQuitMessage(0)
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*
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* WM_SETCURSOR: By default, this will set the cursor to a null cursor,
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* thereby removing it from the screen.
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*
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* WM_LBUTTONDOWN:
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* WM_MBUTTONDOWN:
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* WM_RBUTTONDOWN:
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* WM_KEYDOWN:
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* WM_KEYUP:
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* WM_MOUSEMOVE: By default, these will cause the program to terminate.
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* Unless the password option is enabled. In that case
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* the DlgGetPassword() dialog box is brought up.
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*
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* WM_NCACTIVATE:
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* WM_ACTIVATEAPP:
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* WM_ACTIVATE: By default, if the wParam parameter is FALSE (signifying
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* that transfer is being taken away from the application),
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* then the program will terminate. Termination is
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* accomplished by generating a WM_CLOSE message. This way,
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* if the user sets something up in the WM_CREATE, a
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* WM_DESTROY will be generated and it can be destroyed
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* properly.
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* This message is ignored, however is the password option
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* is enabled.
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*/
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LRESULT WINAPI DefScreenSaverProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
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/* A function is also needed for configuring the screen saver. The function
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* should be exactly like it is below and must be exported such that the
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* program can use MAKEPROCINSTANCE on it and call up a dialog box. Further-
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* more, the template used for the dialog must be called
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* ScreenSaverConfigure to allow the main function to access it...
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*/
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BOOL WINAPI ScreenSaverConfigureDialog (HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
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/* To allow the programmer the ability to register child control windows, this
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* function is called prior to the creation of the dialog box. Any
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* registering that is required should be done here, or return TRUE if none
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* is needed...
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*/
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BOOL WINAPI RegisterDialogClasses (HANDLE hInst);
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/* The following functions are called by DefScreenSaverProc and must
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* be exported by all screensavers using this model.
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*/
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/*
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* There are only three other points that should be of notice:
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* 1) The screen saver must have a string declared as 'szAppName' contaning the
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* name of the screen saver, and it must be declared as a global.
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* 2) The screen saver EXE file should be renamed to a file with a SCR
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* extension so that the screen saver dialog from the control panel can
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* find it when is searches for screen savers.
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*/
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#define WS_GT (WS_GROUP | WS_TABSTOP)
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#define MAXFILELEN 13
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#define TITLEBARNAMELEN 40
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#define APPNAMEBUFFERLEN 40
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#define BUFFLEN 255
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/* The following globals are defined in scrnsave.lib */
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extern HINSTANCE hMainInstance;
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extern HWND hMainWindow;
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extern BOOL fChildPreview;
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extern TCHAR szName[TITLEBARNAMELEN];
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extern TCHAR szAppName[APPNAMEBUFFERLEN];
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extern TCHAR szIniFile[MAXFILELEN];
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extern TCHAR szScreenSaver[22];
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extern TCHAR szHelpFile[MAXFILELEN];
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extern TCHAR szNoHelpMemory[BUFFLEN];
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extern UINT MyHelpMessage;
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/* OPTIONAL - Win95 Only */
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#define SCRM_VERIFYPW WM_APP
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/*
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* This message is sent to the main screen saver window when password
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* protection is enabled and the user is trying to close the screen saver. You
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* can process this message and provide your own validation technology. If you
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* process this message, you should also support the ScreenSaverChangePassword
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* function, described below. Return zero from this message if the password
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* check failed. Return nonzero for success. If you run out of memory or
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* encounter a similar class of error, return non-zero so the user isn't left
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* out in the cold. The default action is to call the Windows Master
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* Password Router to validate the user's password.
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*/
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void WINAPI ScreenSaverChangePassword( HWND hParent );
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/*
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* You supply this if you provide your own authentication. Windows will call
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* it when the user wants to change the password. An implementation of this
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* function should present password change UI to the user.
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* You should only supply this function if you also hook the SCRM_VERIFYPW
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* message to validate passwords.
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* The default action is to call the Windows Master Password Router.
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*/
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#include <poppack.h>
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#pragma option pop /*P_O_Pop*/
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#endif /* !_INC_SCRNSAVE */
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