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  • How to access C arrays from assembler for Windows x64?

    - by 0xdword32
    I've written an assembler function to speed up a few things for image processing (images are created with CreateDIBSection). For Win32 the assembler code works without problems, but for Win64 I get a crash as soon as I try to access my array data. I put the relevant info in a struct and my assembler function gets a pointer to this struct. The struct pointer is put into ebx/rbx and with indexing I read the data from the struct. Any idea what I am doing wrong? I use nasm together with Visual Studio 2008 and for Win64 I set "default rel". C++ code: struct myData { tUInt32 ulParam1; void* pData; }; CallMyAssemblerFunction(&myData); Assembler Code: Win32: ... push ebp; mov ebp,esp mov ebx, [ebp + 8]; pointer to our struct mov eax, [ebx]; ulParam1 mov esi, [ebx + 4]; pData, 4 byte pointer movd xmm0, [esi]; ... Win64: ... mov rbx, rcx; pointer to our struct mov eax, [rbx]; ulParam1 mov rsi, [rbx + 4]; pData, 8 byte pointer movd xmm0, [rsi]; CRASH! ...

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  • Lamda functions in php

    - by Oden
    Hey, Im really interested in the way of using lamda functions. Does it make sense to use them in a high-level programming language? If yes, why? Is this really just a function embedded in a function, (Like this) or is there more behind?

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  • Windows Azure worker roles: One big job or many small jobs?

    - by Ryan Elkins
    Is there any inherent advantage when using multiple workers to process pieces of procedural code versus processing the entire load? In other words, if my workflow looks like this: Get work from queue0 and do A Store result from A in queue1 Get result from queue 1 and do B Store result from B in queue2 Get result from queue2 and do C Is there an inherent advantage to using 3 workers who each do the entire process themselves versus 3 workers that each do a part of the work (Worker 1 does 1 & 2, worker 2 does 3 & 4, worker 3 does 5). If we only care about working being done (finished with step 5) it would seem that it scales the same way (once you're using at least 3 workers). Maybe the big job is better because workers with that setup have less bottleneck issues?

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  • How to launch a Windows service network process to listen to a port on a localhost socket that is vi

    - by rwired
    Here's the code (in a standard TService in Delphi): const ProcessExe = 'MyNetApp.exe'; function RunService: Boolean; var StartInfo : TStartupInfo; ProcInfo : TProcessInformation; CreateOK : Boolean; begin CreateOK := false; FillChar(StartInfo,SizeOf(TStartupInfo),#0); FillChar(ProcInfo,SizeOf(TProcessInformation),#0); StartInfo.cb := SizeOf(TStartupInfo); CreateOK := CreateProcess(nil, PChar(ProcessEXE),nil,nil,False, CREATE_NEW_PROCESS_GROUP+NORMAL_PRIORITY_CLASS, nil, PChar(InstallDir), StartInfo, ProcInfo); CloseHandle(ProcInfo.hProcess); CloseHandle(ProcInfo.hThread); Result := CreateOK; end; procedure TServicel.ServiceExecute(Sender: TService); const IntervalsBetweenRuns = 4; //no of IntTimes between checks IntTime = 250; //ms var Count: SmallInt; begin Count := IntervalsBetweenRuns; //first time run immediately while not Terminated do begin Inc(Count); if Count >= IntervalsBetweenRuns then begin Count := 0; //We check to see if the process is running, //if not we run it. That's all there is to it. //if ProcessEXE crashes, this service host will just rerun it if processExists(ProcessEXE)=0 then RunService; end; Sleep(IntTime); ServiceThread.ProcessRequests(False); end; end; MyNetApp.exe is a SOCKS5 proxy listening on port 9870. Users configure their browser to this proxy which acts as a secure-tunnel/anonymizer. All works perfectly fine on 2000/XP/2003, but on Vista/Win7 with UAC the service runs in Session0 under LocalSystem and port 9870 doesn't show up in netstat for the logged-in user or Administrator. Seems UAC is getting in my way. Is there something I can do with the SECURITY_ATTRIBUTES or CreateProcess, or is there something I can do with CreateProcessAsUser or impersonation to ensure that a network socket on a service is available to logged-in users on the system (note, this app is for mass deployment, I don't have access to user credentials, and require the user elevate their privileges to install a service on Vista/Win7)

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  • When writing to the Windows Event Log, is it possible to create a custom link text for URLs?

    - by thomasnguyencom
    I'm just using the vanilla EventLog.WriteEntry method: EventLog.WriteEntry(EVENT_SOURCE, message, EventLogEntryType.Error, id); Here's how the message shows up in the Event Log, with the links in the parenthesis working just fine, but it's ugly: Example 1: Please contact us via email (mailto:[email protected]) or online (http://example.com). Here's how the message shows up in the Event Log, with the HTML "markup", doesn't even handle it: Example 2: Please contact us via <a href="mailto:[email protected]">email</a> or <a href="http://example.com">online</a>. This is how I would like the message to show up, but with "email" and "online" as the link texts: Example 3: Please contact us via email or online. I've tried the <a href>...</a> HTML tags with no success.

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  • Microsoft Windows 64-bit application development best practises installation folder.

    - by abmv
    My problem is that a vendor is providing me with a 64bit application (packed in a 64bit installer) but it goes and installs to the x86 (Program Files) Folder and he keeps telling me its OK but I want it to install in the Program Files directory; as the 32 bit version does that and scripts for the app are developed based on this assumption. Can someone direct me to the Microsoft recommended best practices for 64bit applications(links). Thanks in advance.

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  • Learning Lisp - Why ?

    - by David
    I really feel that I should learn Lisp and there are plenty of good resources out there to help me do it. I'm not put off by the complicated syntax, but where in "traditional commercial programming" would I find places it would make sense to use it instead of a procedural language. Is there a commercial killer-app out there that's been written in Lisp ?

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  • What are the common issues that can cause slow boot times of Windows CE6 Images?

    - by Psychic
    I am relatively new to Platform Builder, and whilst I am able to produce nk.bin files, they boot very slowly, 80-100 seconds, so I think there may be some checkbox somewhere that I need to set (or clear)! I've already removed kitl, profiling, etc in the project settings, and set the project to 'release build' & 'ship'. When I looked at the startup event log (in debug), there doesn't appear to be any specific point where it is slow. The log pretty much scrolls all the way through with no major pauses. One thing I found strange was that although the nk.bin file was a lot smaller in release build (just under 12Mb), the boot time didn't noticeably change from the debug build... The board is a Vortex86DX_60A and I'm building CE6. Are there any 'common builder mistakes' that I may be missing here, or is this going to be something a little deeper?

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  • Bing Map on Windows Phone - add click events to pushpins; display more details

    - by Will Gill
    I have a WP Phone app using a Bing Map control. I have an array of objects, and each object has a location. I iterate the array to place the pins on the map (see below). I have a touch event bound to each pin to allow the user to tap the pin to start an action. Now - I would like, on tap, to show information from the object that relates to that pin to be shown in a textbox. How can I retrieve the object from the array that corresponds to the pushpin that was tapped/clicked? foreach (wikiResult result in arrayResults) { double lat = double.Parse(result.Latitude, CultureInfo.InvariantCulture); double lng = double.Parse(result.Longitude, CultureInfo.InvariantCulture); statusTextBlock.Text = result.Latitude + " " + result.Longitude + " " + lat + " " + lng; GeoCoordinate d = new GeoCoordinate(lat, lng); Pushpin pin; pin = new Pushpin(); pin.Location = d; pin.Content = result.Name; pin.MouseLeftButtonUp += new MouseButtonEventHandler(pin1_MouseLeftButtonUp); myMap.Children.Add(pin); } void pin1_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) { //display the content from the object in a text box } Many thanks in advance!

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  • How to make a .NET Windows Service start right after the installation?

    - by Jader Dias
    Besides the service.StartType = ServiceStartMode.Automatic my service does not start after installation Solution Inserted this code on my ProjectInstaller protected override void OnAfterInstall(System.Collections.IDictionary savedState) { base.OnAfterInstall(savedState); using (var serviceController = new ServiceController(this.serviceInstaller1.ServiceName, Environment.MachineName)) serviceController.Start(); } Thanks to ScottTx and Francis B.

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  • Open source, programmable online video player available?

    - by JB
    I got this great idea that I'm thinking about implementing, but before I go into the deep end I wanted to get a clue about what options I have. I'm looking for an open source, programmable video player. Must: Play video files from a user's computer not a server Connect to a server to retrieve/send info (not limited to file xfer) Prefer: Web-based player Easily programmable (because i'm no pro at programming <; Any names of open-source programs or players that you guys think I could use? Any help is really appreciated

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  • Virtual drivers with Windows Driver Model - where to begin?

    - by waitinforatrain
    I've never written drivers before but I'm starting an open-source project that involves creating virtual MIDI ports that will send the MIDI data over a network. For this, I presume I would be creating some sort of virtual driver using WDM (unless it's possible with kernel hooks?) - but being a beginner to driver development I don't know where to begin. Does anyone know any useful resources that would help me with this project? Or some open-source code from a similar project that I could fork as a starting point?

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  • convert any language into PHP sourcecode

    - by dreftymac
    Question: Is there any such thing as a programming language (other than an esoteric language such as BrainF@#$, or the languages PHP or VB) that you can "compile" into non-obfuscated PHP source code? Rationale: Swip wants to generate ordinary PHP code because it is so ubiquitous for the types of projects swip wants to do. Unfortunately swip would like to actually avoid writing PHP -- strange but true! Swip is crazy enough to want to generate PHP source code without having to type any PHP into Swip's editor.

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  • Is there an API to remotely read a Windows machine's audit configuration?

    - by JCCyC
    I need to know, for each subcategory, whether it'll be audited on success, on failure, both, or none. Below is an example of the information I need to collect. Can I get this through WMI? Or if not, by other means, assuming I have proper (admin) credentials to the target machine? Again, to clarify, it's not the event log I need to read, it's the logging configuration. <security_state_change>AUDIT_SUCCESS</security_state_change> <security_system_extension>AUDIT_NONE</security_system_extension> <system_integrity>AUDIT_SUCCESS_FAILURE</system_integrity> <ipsec_driver>AUDIT_NONE</ipsec_driver> <other_system_events>AUDIT_SUCCESS_FAILURE</other_system_events> <logon>AUDIT_SUCCESS</logon> <logoff>AUDIT_SUCCESS</logoff> <account_lockout>AUDIT_SUCCESS</account_lockout> <ipsec_main_mode>AUDIT_NONE</ipsec_main_mode> <ipsec_quick_mode>AUDIT_NONE</ipsec_quick_mode> <ipsec_extended_mode>AUDIT_NONE</ipsec_extended_mode> <special_logon>AUDIT_SUCCESS</special_logon> <other_logon_logoff_events>AUDIT_NONE</other_logon_logoff_events> <file_system>AUDIT_NONE</file_system> <registry>AUDIT_NONE</registry> <kernel_object>AUDIT_NONE</kernel_object> <sam>AUDIT_NONE</sam> <certification_services>AUDIT_NONE</certification_services> <application_generated>AUDIT_NONE</application_generated> <handle_manipulation>AUDIT_NONE</handle_manipulation> <file_share>AUDIT_NONE</file_share> <filtering_platform_packet_drop>AUDIT_NONE</filtering_platform_packet_drop> <filtering_platform_connection>AUDIT_NONE</filtering_platform_connection> <other_object_access_events>AUDIT_NONE</other_object_access_events> <sensitive_privilege_use>AUDIT_NONE</sensitive_privilege_use> <non_sensitive_privlege_use>AUDIT_NONE</non_sensitive_privlege_use> <other_privlege_use_events>AUDIT_NONE</other_privlege_use_events> <process_creation>AUDIT_NONE</process_creation> <process_termination>AUDIT_NONE</process_termination> <dpapi_activity>AUDIT_NONE</dpapi_activity> <rpc_events>AUDIT_NONE</rpc_events> <audit_policy_change>AUDIT_SUCCESS</audit_policy_change> <authentication_policy_change>AUDIT_SUCCESS</authentication_policy_change> <authorization_policy_change>AUDIT_NONE</authorization_policy_change> <mpssvc_rule_level_policy_change>AUDIT_NONE</mpssvc_rule_level_policy_change> <filtering_platform_policy_change>AUDIT_NONE</filtering_platform_policy_change> <other_policy_change_events>AUDIT_NONE</other_policy_change_events> <user_account_management>AUDIT_SUCCESS</user_account_management> <computer_account_management>AUDIT_NONE</computer_account_management> <security_group_management>AUDIT_SUCCESS</security_group_management> <distribution_group_management>AUDIT_NONE</distribution_group_management> <application_group_management>AUDIT_NONE</application_group_management> <other_account_management_events>AUDIT_NONE</other_account_management_events> <directory_service_access>AUDIT_NONE</directory_service_access> <directory_service_changes>AUDIT_NONE</directory_service_changes> <directory_service_replication>AUDIT_NONE</directory_service_replication> <detailed_directory_service_replication>AUDIT_NONE</detailed_directory_service_replication> <credential_validation>AUDIT_NONE</credential_validation> <kerberos_ticket_events>AUDIT_NONE</kerberos_ticket_events> <other_account_logon_events>AUDIT_NONE</other_account_logon_events>

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  • Sending the array of arbitrary length through a socket. Endianness.

    - by Negai
    Hi everyone, I'm fighting with socket programming now and I've encountered a problem, which I don't know how to solve in a portable way. The task is simple : I need to send the array of 16 bytes over the network, receive it in a client application and parse it. I know, there are functions like htonl, htons and so one to use with uint16 and uint32. But what should I do with the chunks of data greater than that? Thank you.

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