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SSCore.c
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SSCore.c
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/*
* Screen Saver - Lockup Desktop replacement for OS/2 and eComStation systems
* Copyright (C) 2004-2008 Doodle
*
* Contact: doodle@dont.spam.me.scenergy.dfmk.hu
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <process.h>
#include <direct.h>
#define INCL_DOS
#define INCL_DOSMISC
#define INCL_WIN
#define INCL_ERRORS
#include <os2.h>
#include "SSCore.h"
#include "SSDPMS/SSDPMS.h" // ScreenSaver DPMS support
#include "userctl.h" // Security/2 support
#include "SSModWrp/SSModuleNPipe.h" // Module Wrapper support
#define GLOBAL_VAR __based( __segname("GLOBAL_DATA_SEG") )
#define ACTION_EVENT_SHARED_SEM_NAME "\\SEM32\\SSAVER\\USERACT"
#define STATECHANGE_EVENT_SHARED_SEM_NAME "\\SEM32\\SSAVER\\STATCHG"
#define WORKER_STATE_UNKNOWN 0
#define WORKER_STATE_RUNNING 1
#define WORKER_STATE_STOPPED 2
#define WORKER_COMMAND_NONE (WM_USER+1)
#define WORKER_COMMAND_SHUTDOWN (WM_USER+2)
#define WORKER_COMMAND_SENTINELTIMEOUT (WM_USER+3)
#define WORKER_COMMAND_SENTINELACTIVITY (WM_USER+4)
#define WORKER_COMMAND_STARTSAVINGNOW (WM_USER+5)
#define WORKER_COMMAND_STOPSAVINGNOW (WM_USER+6)
#define WORKER_COMMAND_STARTPREVIEW (WM_USER+7)
#define WORKER_COMMAND_STOPPREVIEW (WM_USER+8)
// States of DPMS saving, starting from the first to the last:
#define SSCORE_DPMSSTATE_ON 0
#define SSCORE_DPMSSTATE_STANDBY 1
#define SSCORE_DPMSSTATE_SUSPEND 2
#define SSCORE_DPMSSTATE_OFF 3
// Mouse movement sensitivity:
// (If the mouse moves less than this value, then it won't be treated as movement)
#define SSCORE_MOUSE_MOVEMENT_SENSITIVITY 3
// ---------------------- Shared variables across processes --------------
int GLOBAL_VAR iDLLUsageCounter = 0;
int GLOBAL_VAR bGlobalInitialized; // TRUE if saver service is running
PID GLOBAL_VAR pidGlobalInitializerClient; // PID in which the saver thread runs (initializer client)
HAB GLOBAL_VAR habGlobalInitializerClient; // HAB -- || --
int GLOBAL_VAR iGlobalTempDisableCounter; //
HEV GLOBAL_VAR hevGlobalSentinelEvent; // Shared semaphore, posted when the input hook detects an event
int GLOBAL_VAR iGlobalCurrentState; // The current state of the screen saving (SSCORE_STATE_NORMAL or SSCORE_STATE_SAVING)
HEV GLOBAL_VAR hevGlobalStateChangeEvent; // Shared semaphore, posted when the screen saving state changes
TID GLOBAL_VAR tidGlobalSentinelThread; // ThreadID of sentinel thread (the thread which timeouts if no event comes ina given time)
int GLOBAL_VAR iGlobalSentinelThreadState; // State of sentinel thread (running, stopped...)
int GLOBAL_VAR bGlobalSentinelThreadShutdownRequest; // TRUE if the sentinel thread should stop
TID GLOBAL_VAR tidGlobalWorkerThread; // ThreadID of worker thread (the thread which calls saver modules)
int GLOBAL_VAR iGlobalWorkerThreadState; // State of worker thread
HMQ GLOBAL_VAR hmqGlobalWorkerThreadCommandQueue; // Command queue for worker thread
char GLOBAL_VAR achGlobalHomeDirectory[CCHMAXPATHCOMP]; // Home directory
SSCoreSettings_t GLOBAL_VAR GlobalCurrentSettings; // Current settings
SHORT GLOBAL_VAR sGlobalCurrDesktopMouseXPos = 0;
SHORT GLOBAL_VAR sGlobalCurrDesktopMouseYPos = 0;
unsigned long GLOBAL_VAR ulGlobalLastKeyboardEventTimestamp; // Content of the QSV_MS_COUNT when the last keyboard event happened
unsigned long GLOBAL_VAR ulGlobalLastMouseEventTimestamp; // Content of the QSV_MS_COUNT when the last mouse event happened
HMODULE GLOBAL_VAR hmodGlobalDLLHandle; //
// ---------------------- Per-process variables --------------
PID pidThisClient;
int iThisTempDisableCounter;
int bThisDPMSSupportPresent; // TRUE, if SSDPMS.DLL could be loaded for this process, and function pointers got.
HMODULE hmodThisSSDPMS; // NULLHANDLE, or handle of loaded SSDPMS.DLL
pfn_SSDPMS_Initialize fn_SSDPMS_Initialize;
pfn_SSDPMS_Uninitialize fn_SSDPMS_Uninitialize;
pfn_SSDPMS_GetCapabilities fn_SSDPMS_GetCapabilities;
pfn_SSDPMS_SetState fn_SSDPMS_SetState;
pfn_SSDPMS_GetState fn_SSDPMS_GetState;
char *apchThisNLSText[SSCORE_NLSTEXT_MAX+1]; // Array of strings to store NLS texts.
// Filled only for the Initializer Client!
HMTX hmtxThisUseNLSTextArray; // Mutex semaphore to protect the array
// - - Security/2 support - -
HMODULE hmodThisUSERCTL; // Containing the module handle of USERCTL.DLL, if Security/2 is present (NULLHANDLE otherwise)
APIRET APIENTRY (*pfnThisDosUserRegister)(PUSERREGISTER);
APIRET APIENTRY (*pfnThisDosUserQueryCurrent)(PSZ pszUser, ULONG cbUser, PLONG plUid);
// - - - -
//#define DEBUG_LOGGING
#ifdef DEBUG_LOGGING
void AddLog(char *pchMsg)
{
FILE *hFile;
hFile = fopen("c:\\sscore.log", "at+");
if (hFile)
{
fprintf(hFile, "%s", pchMsg);
fclose(hFile);
}
}
#endif
static int internal_CallThroughPipe(void *pOutbuf, ULONG ulOutBytes, void *pInBuf, ULONG ulInBytes)
{
APIRET rc;
ULONG ulRead;
int iResult = SSMODULE_ERROR_INTERNALERROR;
rc = DosCallNPipe(SSMODULE_NPIPE_SERVER_PATH, pOutbuf, ulOutBytes, pInBuf, ulInBytes, &ulRead, -1);
if (rc==NO_ERROR)
iResult = SSMODULE_NOERROR;
if (ulInBytes == ulRead)
iResult = SSMODULE_NOERROR;
return iResult;
}
static int internal_Worker_CallSetNLSText(int bUseModuleWrapper, pfn_SSModule_SetNLSText fnSetNLSText, int iNLSTextID, char *pchNLSText)
{
int iResult;
if (!bUseModuleWrapper)
return fnSetNLSText(iNLSTextID, pchNLSText);
else
{
SSModule_NPipe_SetNLSText_Req_t request;
SSModule_NPipe_SetNLSText_Resp_t response;
request.usCommandCode = SSMODULE_NPIPE_COMMANDCODE_SETNLSTEXT_REQ;
request.iNLSTextID = iNLSTextID;
request.bIsNULL = (pchNLSText==NULL);
if (pchNLSText)
snprintf(request.achNLSText, sizeof(request.achNLSText), "%s", pchNLSText);
iResult = internal_CallThroughPipe(&request, sizeof(request), &response, sizeof(response));
if (iResult==SSMODULE_NOERROR) iResult=response.iResult;
return iResult;
}
}
static int internal_Worker_CallStopSaving(int bUseModuleWrapper, pfn_SSModule_StopSaving fnStopSaving)
{
int iResult;
if (!bUseModuleWrapper)
return fnStopSaving();
else
{
SSModule_NPipe_StopSaving_Req_t request;
SSModule_NPipe_StopSaving_Resp_t response;
request.usCommandCode = SSMODULE_NPIPE_COMMANDCODE_STOPSAVING_REQ;
iResult = internal_CallThroughPipe(&request, sizeof(request), &response, sizeof(response));
if (iResult==SSMODULE_NOERROR) iResult=response.iResult;
return iResult;
}
}
static int internal_Worker_CallStartSaving(int bUseModuleWrapper, pfn_SSModule_StartSaving fnStartSaving, HWND hwndParent, char *pchHomeDirectory, int bPreviewMode)
{
int iResult;
if (!bUseModuleWrapper)
return fnStartSaving(hwndParent, pchHomeDirectory, bPreviewMode);
else
{
SSModule_NPipe_StartSaving_Req_t request;
SSModule_NPipe_StartSaving_Resp_t response;
request.usCommandCode = SSMODULE_NPIPE_COMMANDCODE_STARTSAVING_REQ;
request.hwndParent = hwndParent;
snprintf(request.achHomeDirectory, sizeof(request.achHomeDirectory), "%s", pchHomeDirectory);
request.bPreviewMode = bPreviewMode;
iResult = internal_CallThroughPipe(&request, sizeof(request), &response, sizeof(response));
if (iResult==SSMODULE_NOERROR) iResult=response.iResult;
return iResult;
}
}
static int internal_Worker_CallPauseSaving(int bUseModuleWrapper, pfn_SSModule_PauseSaving fnPauseSaving)
{
int iResult;
if (!bUseModuleWrapper)
return fnPauseSaving();
else
{
SSModule_NPipe_PauseSaving_Req_t request;
SSModule_NPipe_PauseSaving_Resp_t response;
request.usCommandCode = SSMODULE_NPIPE_COMMANDCODE_PAUSESAVING_REQ;
iResult = internal_CallThroughPipe(&request, sizeof(request), &response, sizeof(response));
if (iResult==SSMODULE_NOERROR) iResult=response.iResult;
return iResult;
}
}
static int internal_Worker_CallResumeSaving(int bUseModuleWrapper, pfn_SSModule_ResumeSaving fnResumeSaving)
{
int iResult;
if (!bUseModuleWrapper)
return fnResumeSaving();
else
{
SSModule_NPipe_ResumeSaving_Req_t request;
SSModule_NPipe_ResumeSaving_Resp_t response;
request.usCommandCode = SSMODULE_NPIPE_COMMANDCODE_RESUMESAVING_REQ;
iResult = internal_CallThroughPipe(&request, sizeof(request), &response, sizeof(response));
if (iResult==SSMODULE_NOERROR) iResult=response.iResult;
return iResult;
}
}
static int internal_Worker_CallAskUserForPassword(int bUseModuleWrapper, pfn_SSModule_AskUserForPassword fnAskUserForPassword, int iPwdBuffSize, char *pchPwdBuff)
{
int iResult;
if (!bUseModuleWrapper)
return fnAskUserForPassword(iPwdBuffSize, pchPwdBuff);
else
{
SSModule_NPipe_AskUserForPassword_Req_t request;
SSModule_NPipe_AskUserForPassword_Resp_t response;
request.usCommandCode = SSMODULE_NPIPE_COMMANDCODE_ASKUSERFORPASSWORD_REQ;
iResult = internal_CallThroughPipe(&request, sizeof(request), &response, sizeof(response));
if (iResult==SSMODULE_NOERROR)
{
iResult=response.iResult;
snprintf(pchPwdBuff, iPwdBuffSize, "%s", response.achPassword);
}
return iResult;
}
}
static int internal_Worker_CallShowWrongPassword(int bUseModuleWrapper, pfn_SSModule_ShowWrongPasswordNotification fnShowWrongPasswordNotification)
{
int iResult;
if (!bUseModuleWrapper)
return fnShowWrongPasswordNotification();
else
{
SSModule_NPipe_ShowWrongPasswordNotification_Req_t request;
SSModule_NPipe_ShowWrongPasswordNotification_Resp_t response;
request.usCommandCode = SSMODULE_NPIPE_COMMANDCODE_SHOWWRONGPASSWORDNOTIFICATION_REQ;
iResult = internal_CallThroughPipe(&request, sizeof(request), &response, sizeof(response));
if (iResult==SSMODULE_NOERROR) iResult=response.iResult;
return iResult;
}
}
static int internal_GetConfigFileEntry(FILE *hFile, char **ppchKey, char **ppchValue)
{
int iLineCount, rc;
*ppchKey = NULL;
*ppchValue = NULL;
// Allocate memory for variables we'll return
*ppchKey = malloc(4096);
if (!*ppchKey) return 0;
*ppchValue = malloc(4096);
if (!*ppchValue)
{
free(*ppchKey);
*ppchKey = NULL;
return 0;
}
// Process every lines of the config file, but
// max. 1000, so if something goes wrong, wo won't end up an infinite
// loop here.
iLineCount = 0;
while ((!feof(hFile)) && (iLineCount<1000))
{
iLineCount++;
// First find the beginning of the key
fscanf(hFile, "%*[\n\t= ]");
// Now get the key
rc=fscanf(hFile, "%[^\n\t= ]",*ppchKey);
if ((rc==1) && ((*ppchKey)[0]!=';'))
{ // We have the key! (and not a remark!)
// Skip the whitespace after the key, if there are any
fscanf(hFile, "%*[ \t]");
// There must be a '=' here
rc=fscanf(hFile, "%[=]", *ppchValue);
if (rc==1)
{
// Ok, the '=' is there
// Skip the whitespace, if there are any
fscanf(hFile, "%*[ \t]");
// and read anything until the end of line
rc=fscanf(hFile, "%[^\n]\n", *ppchValue);
if (rc==1)
{
// Found a key/value pair!!
return 1;
} else fscanf(hFile, "%*[^\n]\n"); // find EOL
} else fscanf(hFile, "%*[^\n]\n"); // find EOL
} else fscanf(hFile, "%*[^\n]\n"); // find EOL
}
// Ok, skin file processed, no more pairs!
free(*ppchKey); *ppchKey = NULL;
free(*ppchValue); *ppchValue = NULL;
return 0;
}
static void internal_LoadSettings(char *pchHomeDirectory)
{
char achFileName[CCHMAXPATH];
char *pchHomeEnvVar;
char *pchKey, *pchValue;
FILE *hFile;
hFile = NULL;
// Get home directory of current user
pchHomeEnvVar = getenv("HOME");
// If we have the HOME variable set, then we'll try to use
// the .dssaver folder in there, otherwise fall back to
// using the DSSaver Global home directory!
if (pchHomeEnvVar)
{
int iLen;
snprintf(achFileName, sizeof(achFileName)-1, "%s", pchHomeEnvVar);
// Make sure it will have the trailing backslash!
iLen = strlen(achFileName);
if ((iLen>0) &&
(achFileName[iLen-1]!='\\'))
{
achFileName[iLen] = '\\';
achFileName[iLen+1] = 0;
}
// Now put there the .dssaver folder name and the config file name!
strncat(achFileName, ".dssaver\\SSCORE.CFG", sizeof(achFileName));
// Try to open that config file!
hFile = fopen(achFileName, "rt");
}
if (!hFile)
{
// If we could not open a config file in the HOME directory, or there was
// no HOME directory, then try to use the DSSaver Global home directory!
snprintf(achFileName, sizeof(achFileName), "%sSSCORE.CFG", pchHomeDirectory);
hFile = fopen(achFileName, "rt");
if (!hFile)
return; // Could not open file!
}
// Go to the beginning of the file
fseek(hFile, 0, SEEK_SET);
// Process every entry of the config file
pchKey = NULL;
pchValue = NULL;
while (internal_GetConfigFileEntry(hFile, &pchKey, &pchValue))
{
// Found a key/value pair!
if (!stricmp(pchKey, "Enabled"))
GlobalCurrentSettings.bEnabled = atoi(pchValue);
else
if (!stricmp(pchKey, "Activation_Time"))
{
GlobalCurrentSettings.iActivationTime = atoi(pchValue);
if (GlobalCurrentSettings.iActivationTime<1000)
GlobalCurrentSettings.iActivationTime = 1000;
}
else
if (!stricmp(pchKey, "Module_FileName"))
strncpy(GlobalCurrentSettings.achModuleFileName, pchValue, sizeof(GlobalCurrentSettings.achModuleFileName));
else
if (!stricmp(pchKey, "Password_Protected"))
GlobalCurrentSettings.bPasswordProtected = atoi(pchValue);
else
if (!stricmp(pchKey, "Use_Current_Security_Password"))
GlobalCurrentSettings.bUseCurrentSecurityPassword = atoi(pchValue);
else
if (!stricmp(pchKey, "Password"))
strncpy(GlobalCurrentSettings.achEncryptedPassword, pchValue, sizeof(GlobalCurrentSettings.achEncryptedPassword));
else
if (!stricmp(pchKey, "Delayed_Password_Protection"))
GlobalCurrentSettings.bUseDelayedPasswordProtection = atoi(pchValue);
else
if (!stricmp(pchKey, "Password_Delay_Time"))
{
GlobalCurrentSettings.iPasswordDelayTime = atoi(pchValue);
if (GlobalCurrentSettings.iPasswordDelayTime<60000)
GlobalCurrentSettings.iPasswordDelayTime = 60000; // 1 min
}
else
if (!stricmp(pchKey, "Use_DPMS_Standby_State"))
GlobalCurrentSettings.bUseDPMSStandbyState = atoi(pchValue);
else
if (!stricmp(pchKey, "Use_DPMS_Suspend_State"))
GlobalCurrentSettings.bUseDPMSSuspendState = atoi(pchValue);
else
if (!stricmp(pchKey, "Use_DPMS_Off_State"))
GlobalCurrentSettings.bUseDPMSOffState = atoi(pchValue);
else
if (!stricmp(pchKey, "DPMS_Standby_Time"))
{
GlobalCurrentSettings.iDPMSStandbyTime = atoi(pchValue);
if (GlobalCurrentSettings.iDPMSStandbyTime<0)
GlobalCurrentSettings.iDPMSStandbyTime = 0;
}
else
if (!stricmp(pchKey, "DPMS_Suspend_Time"))
{
GlobalCurrentSettings.iDPMSSuspendTime = atoi(pchValue);
if (GlobalCurrentSettings.iDPMSSuspendTime<0)
GlobalCurrentSettings.iDPMSSuspendTime = 0;
}
else
if (!stricmp(pchKey, "DPMS_Off_Time"))
{
GlobalCurrentSettings.iDPMSOffTime = atoi(pchValue);
if (GlobalCurrentSettings.iDPMSOffTime<0)
GlobalCurrentSettings.iDPMSOffTime = 0;
}
else
if (!stricmp(pchKey, "Wake_By_Keyboard_Only"))
GlobalCurrentSettings.bWakeByKeyboardOnly = atoi(pchValue);
else
if (!stricmp(pchKey, "First_Key_Event_Goes_To_Password_Window"))
GlobalCurrentSettings.bFirstKeyEventGoesToPwdWindow = atoi(pchValue);
else
if (!stricmp(pchKey, "Disable_VIO_Popups"))
GlobalCurrentSettings.bDisableVIOPopups = atoi(pchValue);
else
if (!stricmp(pchKey, "Use_Module_Wrapper"))
GlobalCurrentSettings.bUseModuleWrapper = atoi(pchValue);
free(pchKey); pchKey = NULL;
if (pchValue)
{
free(pchValue); pchValue = NULL;
}
}
fclose(hFile);
}
static void internal_SaveSettings(char *pchHomeDirectory)
{
FILE *hFile;
char *pchHomeEnvVar;
char achFileName[CCHMAXPATH];
hFile = NULL;
// Get home directory of current user
pchHomeEnvVar = getenv("HOME");
// If we have the HOME variable set, then we'll try to use
// the .dssaver folder in there, otherwise fall back to
// using the DSSaver Global home directory!
if (pchHomeEnvVar)
{
int iLen;
snprintf(achFileName, sizeof(achFileName)-1, "%s", pchHomeEnvVar);
// Make sure it will have the trailing backslash!
iLen = strlen(achFileName);
if ((iLen>0) &&
(achFileName[iLen-1]!='\\'))
{
achFileName[iLen] = '\\';
achFileName[iLen+1] = 0;
}
// Create the .dssaver folder in there, if it doesn't exist yet!
strncat(achFileName, ".dssaver", sizeof(achFileName));
mkdir(achFileName);
// Now put there the config file name, too!
strncat(achFileName, "\\SSCORE.CFG", sizeof(achFileName));
// Try to open that config file!
hFile = fopen(achFileName, "wt");
}
if (!hFile)
{
// If we could not open a config file in the HOME directory, or there was
// no HOME directory, then try to use the DSSaver Global home directory!
snprintf(achFileName, sizeof(achFileName), "%sSSCORE.CFG", pchHomeDirectory);
hFile = fopen(achFileName, "wt");
if (!hFile)
return; // Could not open file!
}
// Save our values to the first line!
fprintf(hFile, "; ----------------------------------------------------------\n");
fprintf(hFile, "; This is an automatically generated configuration file for\n");
fprintf(hFile, "; the Screen Saver core.\n");
fprintf(hFile, "; Do not modify it by hand!\n");
fprintf(hFile, "\n");
fprintf(hFile, "Enabled = %d\n",
GlobalCurrentSettings.bEnabled);
fprintf(hFile, "Activation_Time = %d\n",
GlobalCurrentSettings.iActivationTime);
fprintf(hFile, "Module_FileName = %s\n",
GlobalCurrentSettings.achModuleFileName);
fprintf(hFile, "Password_Protected = %d\n",
GlobalCurrentSettings.bPasswordProtected);
fprintf(hFile, "Use_Current_Security_Password = %d\n",
GlobalCurrentSettings.bUseCurrentSecurityPassword);
fprintf(hFile, "Password = %s\n",
GlobalCurrentSettings.achEncryptedPassword);
fprintf(hFile, "Delayed_Password_Protection = %d\n",
GlobalCurrentSettings.bUseDelayedPasswordProtection);
fprintf(hFile, "Password_Delay_Time = %d\n",
GlobalCurrentSettings.iPasswordDelayTime);
fprintf(hFile, "Use_DPMS_Standby_State = %d\n",
GlobalCurrentSettings.bUseDPMSStandbyState);
fprintf(hFile, "DPMS_Standby_Time = %d\n",
GlobalCurrentSettings.iDPMSStandbyTime);
fprintf(hFile, "Use_DPMS_Suspend_State = %d\n",
GlobalCurrentSettings.bUseDPMSSuspendState);
fprintf(hFile, "DPMS_Suspend_Time = %d\n",
GlobalCurrentSettings.iDPMSSuspendTime);
fprintf(hFile, "Use_DPMS_Off_State = %d\n",
GlobalCurrentSettings.bUseDPMSOffState);
fprintf(hFile, "DPMS_Off_Time = %d\n",
GlobalCurrentSettings.iDPMSOffTime);
fprintf(hFile, "Wake_By_Keyboard_Only = %d\n",
GlobalCurrentSettings.bWakeByKeyboardOnly);
fprintf(hFile, "First_Key_Event_Goes_To_Password_Window = %d\n",
GlobalCurrentSettings.bFirstKeyEventGoesToPwdWindow);
fprintf(hFile, "Disable_VIO_Popups = %d\n",
GlobalCurrentSettings.bDisableVIOPopups);
fprintf(hFile, "Use_Module_Wrapper = %d\n",
GlobalCurrentSettings.bUseModuleWrapper);
fprintf(hFile, "\n");
fprintf(hFile, "; ----------------------------------------------------------\n");
fprintf(hFile, "; End of configuration file\n");
fprintf(hFile, "; ----------------------------------------------------------\n");
fclose(hFile);
}
static void internal_TellCommonModuleSettings(int bIsModuleWrapperUsed, pfn_SSModule_SetCommonSetting fnSetCommonSetting)
{
// Tell the module the Common Module Settings.
if (bIsModuleWrapperUsed)
{
// * First Key Event Goes To Password Window:
SSModule_NPipe_SetCommonSetting0_Req_t request0;
SSModule_NPipe_SetCommonSetting0_Resp_t response0;
request0.usCommandCode = SSMODULE_NPIPE_COMMANDCODE_SETCOMMONSETTING0_REQ;
request0.uiFirstKeyGoesToPwdWindow = GlobalCurrentSettings.bFirstKeyEventGoesToPwdWindow;
internal_CallThroughPipe(&request0, sizeof(request0), &response0, sizeof(response0));
// ...
} else
if (fnSetCommonSetting)
{
// * First Key Event Goes To Password Window:
fnSetCommonSetting(SSMODULE_COMMONSETTING_FIRSTKEYGOESTOPWDWINDOW,
(void *) (GlobalCurrentSettings.bFirstKeyEventGoesToPwdWindow));
// ...
}
// No more Common Module Settings yet, but once we'll have more, they should come here.
}
static void internal_TryToLoadSSDPMS()
{
ULONG rc;
int bFunctionsOk;
rc = DosLoadModule(NULL, 0, "SSDPMS.DLL", &hmodThisSSDPMS);
_control87(0x37f, 0x1fff);
if (rc!=NO_ERROR)
{
// Error loading the DLL.
#ifdef DEBUG_LOGGING
AddLog("[internal_TryToLoadSSDPMS] : Error loading DLL, DPMS disabled!\n");
#endif
// Disable DPMS support then!
bThisDPMSSupportPresent = FALSE;
hmodThisSSDPMS = NULLHANDLE;
fn_SSDPMS_Initialize = NULL;
fn_SSDPMS_Uninitialize = NULL;
fn_SSDPMS_GetCapabilities = NULL;
fn_SSDPMS_SetState = NULL;
fn_SSDPMS_GetState = NULL;
} else
{
// Okay, DLL loaded. Now query function pointers!
bFunctionsOk = TRUE;
rc = DosQueryProcAddr(hmodThisSSDPMS, 0,
"SSDPMS_Initialize",
(PFN *) &fn_SSDPMS_Initialize);
if (rc!=NO_ERROR)
bFunctionsOk = FALSE;
rc = DosQueryProcAddr(hmodThisSSDPMS, 0,
"SSDPMS_Uninitialize",
(PFN *) &fn_SSDPMS_Uninitialize);
if (rc!=NO_ERROR)
bFunctionsOk = FALSE;
rc = DosQueryProcAddr(hmodThisSSDPMS, 0,
"SSDPMS_GetCapabilities",
(PFN *) &fn_SSDPMS_GetCapabilities);
if (rc!=NO_ERROR)
bFunctionsOk = FALSE;
rc = DosQueryProcAddr(hmodThisSSDPMS, 0,
"SSDPMS_SetState",
(PFN *) &fn_SSDPMS_SetState);
if (rc!=NO_ERROR)
bFunctionsOk = FALSE;
rc = DosQueryProcAddr(hmodThisSSDPMS, 0,
"SSDPMS_GetState",
(PFN *) &fn_SSDPMS_GetState);
if (rc!=NO_ERROR)
bFunctionsOk = FALSE;
if (!bFunctionsOk)
{
#ifdef DEBUG_LOGGING
AddLog("[internal_TryToLoadSSDPMS] : Error querying functions of DLL, DPMS disabled!\n");
#endif
// Disable DPMS support then!
DosFreeModule(hmodThisSSDPMS); hmodThisSSDPMS = NULLHANDLE;
bThisDPMSSupportPresent = FALSE;
fn_SSDPMS_Initialize = NULL;
fn_SSDPMS_Uninitialize = NULL;
fn_SSDPMS_GetCapabilities = NULL;
fn_SSDPMS_SetState = NULL;
fn_SSDPMS_GetState = NULL;
} else
{
// Okay, DPMS support DLL loaded, it's time to initialize it!
#ifdef DEBUG_LOGGING
AddLog("[internal_TryToLoadSSDPMS] : DPMS support DLL loaded, initializing!\n");
#endif
rc = fn_SSDPMS_Initialize();
if (rc!=SSDPMS_NOERROR)
{
#ifdef DEBUG_LOGGING
AddLog("[internal_TryToLoadSSDPMS] : Error initializing DPMS support, DPMS disabled!\n");
#endif
// Disable DPMS support then!
DosFreeModule(hmodThisSSDPMS); hmodThisSSDPMS = NULLHANDLE;
bThisDPMSSupportPresent = FALSE;
fn_SSDPMS_Initialize = NULL;
fn_SSDPMS_Uninitialize = NULL;
fn_SSDPMS_GetCapabilities = NULL;
fn_SSDPMS_SetState = NULL;
fn_SSDPMS_GetState = NULL;
} else
{
#ifdef DEBUG_LOGGING
AddLog("[internal_TryToLoadSSDPMS] : DPMS support loaded\n");
{
int iCaps;
char achTemp[256];
AddLog("[internal_TryToLoadSSDPMS] : Calling SSDPMS_GetCapabilities\n");
fn_SSDPMS_GetCapabilities(&iCaps);
sprintf(achTemp, " DPMS caps: %d\n", iCaps);
AddLog(achTemp);
}
#endif
bThisDPMSSupportPresent = TRUE;
}
}
}
}
static void internal_UnloadSSDPMS()
{
if (hmodThisSSDPMS)
{
#ifdef DEBUG_LOGGING
AddLog("[internal_UnloadSSDPMS] : Uninitializing DPMS support\n");
#endif
fn_SSDPMS_Uninitialize();
// Now unload dll from memory!
DosFreeModule(hmodThisSSDPMS); hmodThisSSDPMS = NULLHANDLE;
bThisDPMSSupportPresent = FALSE;
fn_SSDPMS_Initialize = NULL;
fn_SSDPMS_Uninitialize = NULL;
fn_SSDPMS_GetCapabilities = NULL;
fn_SSDPMS_SetState = NULL;
fn_SSDPMS_GetState = NULL;
#ifdef DEBUG_LOGGING
AddLog("[internal_UnloadSSDPMS] : DPMS support unloaded\n");
#endif
}
}
#if 0
// ---------------------------------------------------------------------------------
// The following code has been removed, and replaced with one 16bits API call,
// which is much more reliable, and works as written in the documents. :)
// ---------------------------------------------------------------------------------
// The prototype of the undocumented WinQueryExtIdFocus() API:
// -- For 16bits development:
//USHORT EXPENTRY WinQueryExtIdFocus(PUSHORT pSessionId);
// -- For 32bits development:
USHORT APIENTRY16 WIN16QUERYEXTIDFOCUS(PUSHORT pSessionId);
#define WinQueryExtIdFocus WIN16QUERYEXTIDFOCUS
#ifdef NO_WINQUERYEXTIDFOCUS_HACK
int internal_WinQueryExtIdFocus()
{
int rc;
USHORT usResult;
rc = WinQueryExtIdFocus(&usResult);
if (rc!=0)
usResult = 1;
return usResult;
}
#else
// Hack to use WinQueryExtIdFocus() with OpenWatcom compiler
// The OpenWatcom compiler v1.2 generates invalid code for
// the original function when optimization is turned on,
// so we work around that this way.
extern ULONG _FlatToFar16(ULONG);
#pragma aux _FlatToFar16 "_*" parm [EAX];
extern VOID _Far16Func2(ULONG, ULONG, ULONG);
#pragma aux _Far16Func2 "_*" parm [EAX] [ESI] [ECX];
int internal_WinQueryExtIdFocus()
{
int rc;
ULONG ulResult;
ULONG ulPtr1616;
rc = rc = 0; // Make compiler/optimizer happy!
ulResult = ulResult = 0;
ulPtr1616 = ulPtr1616 = 0;
_asm {
lea eax, ulResult
call _FlatToFar16
mov ulPtr1616, eax
mov ecx, 4
lea esi, ulPtr1616
mov eax, offset WIN16QUERYEXTIDFOCUS
call _Far16Func2
and eax, 0ffffH
je ResultOk
mov dword ptr ulResult, 1
ResultOk:
}
return ulResult;
}
#endif
static int internal_IsPMTheForegroundFSSession()
{
APIRET rc;
ULONG ulResult1, ulResult2;
// Returns TRUE if PM is the foreground (active) fullscreen session
// For this, we query the current FS session ID, and check if that's
// 1. The session ID of the PM is always 1.
// Update: It seems that even though it is described in the documents, that
// this function returns the fullscreen session ID, it returns some other session ID.
// This means, that when the PM is in foreground, it still returns different values
// as the user changes between e.g. VIO windows, and never returns 1.
// So, the new method is to query session ID with this call, then query session ID
// from PM, and compare them. If they are the same, then we're in PM.
#ifdef DEBUG_LOGGING
AddLog("[internal_IsPMTheForegroundFSSession] : Calling WinQueryExtIdFocus()\n");
#endif
ulResult1 = internal_WinQueryExtIdFocus();
#ifdef DEBUG_LOGGING
AddLog("[internal_IsPMTheForegroundFSSession] : Calling DosQuerySysInfo()\n");
#endif
rc = DosQuerySysInfo(QSV_FOREGROUND_FS_SESSION,
QSV_FOREGROUND_FS_SESSION,
&ulResult2,
sizeof(ulResult2));
if (rc!=NO_ERROR)
ulResult2 = 1;
#ifdef DEBUG_LOGGING
if ((ulResult2==1) ||
(ulResult1 == ulResult2))
AddLog("[internal_IsPMTheForegroundFSSession] : PM is in foreground\n");
else
AddLog("[internal_IsPMTheForegroundFSSession] : PM is in background\n");
#endif
return ((ulResult2 == 1) ||
(ulResult1 == ulResult2));
}
// ---------------------------------------------------------------------------------
// End of removed code
// ---------------------------------------------------------------------------------
#endif
// -- Definition of old Semaphore API to be called frfrom 32bits code: --
typedef ULONG HSEM16;
typedef HSEM16 FAR *PHSEM16;
typedef CHAR FAR *PSZ16;
USHORT APIENTRY16 DOS16OPENSEM(PHSEM16, PSZ16);
#define DosOpenSem DOS16OPENSEM
USHORT APIENTRY16 DOS16SEMCLEAR(HSEM16);
#define DosSemClear DOS16SEMCLEAR
USHORT APIENTRY16 DOS16SEMREQUEST(HSEM16, LONG);
#define DosSemRequest DOS16SEMREQUEST
USHORT APIENTRY16 DOS16CLOSESEM(HSEM16);
#define DosCloseSem DOS16CLOSESEM
// -- Definition of DosGetInfoSeg() API to be called from 32bits code: --
USHORT APIENTRY16 DOS16GETINFOSEG(PUSHORT pselGlobal, PUSHORT pselLocal);
#define DosGetInfoSeg DOS16GETINFOSEG
/* Global Information Segment */
typedef struct _GINFOSEG { /* gis */
ULONG time;
ULONG msecs;
UCHAR hour;
UCHAR minutes;
UCHAR seconds;
UCHAR hundredths;
USHORT timezone;
USHORT cusecTimerInterval;
UCHAR day;
UCHAR month;
USHORT year;
UCHAR weekday;
UCHAR uchMajorVersion;
UCHAR uchMinorVersion;
UCHAR chRevisionLetter;
UCHAR sgCurrent;
UCHAR sgMax;
UCHAR cHugeShift;
UCHAR fProtectModeOnly;
USHORT pidForeground;
UCHAR fDynamicSched;
UCHAR csecMaxWait;
USHORT cmsecMinSlice;
USHORT cmsecMaxSlice;
USHORT bootdrive;
UCHAR amecRAS[32];
UCHAR csgWindowableVioMax;
UCHAR csgPMMax;
USHORT SIS_Syslog; /* Error logging status (NOT DOCUMENTED) */
USHORT SIS_MMIOBase; /* Memory mapped I/O selector */
USHORT SIS_MMIOAddr; /* Memory mapped I/O selector */
UCHAR SIS_MaxVDMs; /* Max. no. of Virtual DOS machines */
UCHAR SIS_Reserved;
} GINFOSEG;
typedef GINFOSEG FAR *PGINFOSEG;
static int internal_IsPMTheForegroundFSSession()
{
APIRET rc;
USHORT globalSeg, localSeg;
GINFOSEG *pInfo;
// Returns TRUE if PM is the foreground (active) fullscreen session
#ifdef DEBUG_LOGGING
AddLog("[internal_IsPMTheForegroundFSSession] : Enter\n");
#endif
// For this, we query the current FS session ID, and check if that's 1.
// The session ID of the PM is always 1.
globalSeg = localSeg = 0;
rc = DosGetInfoSeg(&globalSeg, &localSeg);
if (rc!=NO_ERROR)
{
#ifdef DEBUG_LOGGING
AddLog("[internal_IsPMTheForegroundFSSession] : Error calling DosGetInfoSeg()\n");
#endif
return 1; // Default: yes
}
// Make FLAT pointer from selector
pInfo = (PGINFOSEG) (((ULONG)(globalSeg & 0xFFF8))<<13);
if (!pInfo)
{
#ifdef DEBUG_LOGGING
AddLog("[internal_IsPMTheForegroundFSSession] : Error making flat pointer from selector\n");
#endif
return 1; // Default: yes
}
#ifdef DEBUG_LOGGING
{
char achTemp[32];
sprintf(achTemp, "%d", pInfo->sgCurrent);
AddLog("[internal_IsPMTheForegroundFSSession] : Current fullscreen session: ");
AddLog(achTemp);
AddLog("\n");
}
#endif
// PM is in foreground, if the current fullscreen session ID is 1
return (pInfo->sgCurrent==1);
}
static unsigned long internal_GetCurrentPID(void)
{
PPIB pib;
DosGetInfoBlocks(NULL, &pib);
return((unsigned long) (pib->pib_ulpid));
}
BOOL APIENTRY fnInputHook(HAB hab, PQMSG pQmsg, ULONG ulfs)
{
APIRET rc;
unsigned long ulTemp;
HEV hevLocalSentinelEvent;
switch (pQmsg->msg)
{
// ----------- Mouse activity ----------------
case WM_MOUSEMOVE:
if (pQmsg->hwnd)
{
POINTL ptlTemp, ptlDelta;
// Get the current mouse position
ptlTemp.x = (short) SHORT1FROMMP(pQmsg->mp1);
ptlTemp.y = (short) SHORT2FROMMP(pQmsg->mp1);
// Map it to be relative to Desktop
WinMapWindowPoints(pQmsg->hwnd, HWND_DESKTOP, &ptlTemp, 1);
// Calculate mouse movement distance from previous mouse position
ptlDelta.x = sGlobalCurrDesktopMouseXPos - ptlTemp.x;
ptlDelta.y = sGlobalCurrDesktopMouseYPos - ptlTemp.y;
// Save the new mouse position
sGlobalCurrDesktopMouseXPos = ptlTemp.x;
sGlobalCurrDesktopMouseYPos = ptlTemp.y;
// Check if this mouse movement is significant or not!