Commit initiate work of implement of autostart of screen saver.

svn path=/trunk/; revision=22879

reactos/include/reactos/subsys/csrss/csrss.h

@@ -410,6 +410,12 @@ typedef struct
   HANDLE InputWaitHandle;
 } CSRSS_GET_INPUT_WAIT_HANDLE, *PCSRSS_GET_INPUT_WAIT_HANDLE;
 
+typedef struct
+{
+  BOOL Start;
+} CSRSS_START_SCREEN_SAVER, *PCSRSS_START_SCREEN_SAVER;
+
+
 #define CSR_API_MESSAGE_HEADER_SIZE(Type)       (FIELD_OFFSET(CSR_API_MESSAGE, Data) + sizeof(Type))
 #define CSRSS_MAX_WRITE_CONSOLE                 (LPC_MAX_DATA_LENGTH - CSR_API_MESSAGE_HEADER_SIZE(CSRSS_WRITE_CONSOLE))
 #define CSRSS_MAX_WRITE_CONSOLE_OUTPUT_CHAR     (LPC_MAX_DATA_LENGTH - CSR_API_MESSAGE_HEADER_SIZE(CSRSS_WRITE_CONSOLE_OUTPUT_CHAR))
@@ -477,6 +483,7 @@ typedef struct
 #define SET_CONSOLE_OUTPUT_CP         (0x34)
 #define GET_INPUT_WAIT_HANDLE	      (0x35)
 #define GET_PROCESS_LIST              (0x36)
+#define START_SCREEN_SAVER            (0x37)
 
 /* Keep in sync with definition below. */
 #define CSRSS_HEADER_SIZE (sizeof(PORT_MESSAGE) + sizeof(ULONG) + sizeof(NTSTATUS))
@@ -542,6 +549,7 @@ typedef struct _CSR_API_MESSAGE
         CSRSS_SET_CONSOLE_OUTPUT_CP SetConsoleOutputCodePage;
         CSRSS_GET_INPUT_WAIT_HANDLE GetConsoleInputWaitHandle;
         CSRSS_GET_PROCESS_LIST GetProcessListRequest;
+        CSRSS_START_SCREEN_SAVER StartScreenSaver;
     } Data;
 } CSR_API_MESSAGE, *PCSR_API_MESSAGE;
 

reactos/subsystems/win32/csrss/include/desktopbg.h

@@ -16,6 +16,7 @@ CSR_API(CsrCreateDesktop);
 CSR_API(CsrShowDesktop);
 CSR_API(CsrHideDesktop);
 CSR_API(CsrRegisterSystemClasses);
+CSR_API(CsrStartScreenSaver);
 
 BOOL FASTCALL DtbgIsDesktopVisible(VOID);
 

reactos/subsystems/win32/csrss/win32csr/conio.c

@@ -3301,4 +3301,52 @@ CSR_API(CsrGetProcessList)
   return Request->Status = STATUS_SUCCESS;
 }
 
+
+CSR_API(CsrStartScreenSaver)
+{                                            
+
+    DPRINT1("CsrStartScreenSaver : Start Screen Saver \n");
+    
+    if (Request->Data.StartScreenSaver.Start == TRUE)
+    {
+        STARTUPINFOW si;
+        PROCESS_INFORMATION pi;
+        WCHAR szCmdline[MAX_PATH]; 
+        
+        HKEY hKey;
+        WCHAR szBuffer[MAX_PATH];
+        DWORD bufferSize = sizeof(szBuffer);
+        DWORD varType = REG_SZ;
+        LONG result;
+        
+    
+        
+        // FIXME read the register key for the screen saver
+         //swprintf(szCmdline, L"c:\\reactos\\system32\\matrix.scr /s");  
+                       
+         RegOpenKeyExW(HKEY_CURRENT_USER, L"Control Panel\\Desktop", 0, KEY_ALL_ACCESS, &hKey);
+         result = RegQueryValueExW(hKey, L"SCRNSAVE.EXE", 0, &varType, (LPBYTE)szBuffer, &bufferSize);
+         if(result == ERROR_SUCCESS)
+         {                                    
+            swprintf(szCmdline, L"%s /s",szBuffer);       
+            DPRINT1("CsrStartScreenSaver : OK %S\n",szCmdline);                             
+	        ZeroMemory( &si, sizeof(si) );
+            si.cb = sizeof(si);
+            ZeroMemory( &pi, sizeof(pi) );                         
+            if(CreateProcessW( NULL, szCmdline, NULL, NULL, FALSE,  0,  NULL,NULL,&si, &pi )) 
+            {                          
+              CloseHandle( pi.hProcess );
+              CloseHandle( pi.hThread );                       
+            }              
+         }
+         else
+         {
+               DPRINT1("CsrStartScreenSaver : FAIL %S\n",szBuffer);   
+         }
+                    
+         RegCloseKey(hKey);
+    }    
+	return Request->Status = STATUS_SUCCESS;
+}
+
 /* EOF */

reactos/subsystems/win32/csrss/win32csr/dllmain.c

@@ -68,6 +68,7 @@ static CSRSS_API_DEFINITION Win32CsrApiDefinitions[] =
     CSRSS_DEFINE_API(GET_CONSOLE_OUTPUT_CP,        CsrGetConsoleOutputCodePage),
     CSRSS_DEFINE_API(SET_CONSOLE_OUTPUT_CP,        CsrSetConsoleOutputCodePage),
     CSRSS_DEFINE_API(GET_PROCESS_LIST,             CsrGetProcessList),
+    CSRSS_DEFINE_API(START_SCREEN_SAVER,           CsrStartScreenSaver),
     { 0, 0, NULL }
   };
 

reactos/subsystems/win32/win32k/ntuser/csr.c

@@ -85,6 +85,47 @@ co_CsrNotify(PCSR_API_MESSAGE Request)
    return Status;
 }
 
+
+NTSTATUS FASTCALL
+co_CsrNotifyScreenSaver(PCSR_API_MESSAGE Request)
+{
+   NTSTATUS Status;
+   PEPROCESS OldProcess;
+
+   if (NULL == CsrProcess)
+   {
+      return STATUS_INVALID_PORT_HANDLE;
+   }
+
+   Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - sizeof(PORT_MESSAGE);
+   Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
+
+   /* Switch to the process in which the WindowsApiPort handle is valid */
+   OldProcess = PsGetCurrentProcess();
+   if (CsrProcess != OldProcess)
+   {
+      KeAttachProcess(&CsrProcess->Pcb);
+   }
+
+   Status = ZwRequestWaitReplyPort(WindowsApiPort,
+                                   &Request->Header,
+                                   &Request->Header);
+
+
+   if (CsrProcess != OldProcess)
+   {
+      KeDetachProcess();
+   }
+
+   if (NT_SUCCESS(Status))
+   {
+      Status = Request->Status;
+   }
+
+   return Status;
+}
+
+
 NTSTATUS
 STDCALL
 CsrInsertObject(HANDLE ObjectHandle,